version 1.2
New feature: auto-update apkovl file with latest release on master gadget: improved setup if several ports available and/or some unconnected wlan: only install & start wpa_supplicant if needed updated doc
This commit is contained in:
macmpi
parent
4026274721
commit
2046d877eb
15
README.md
15
README.md
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@ -25,15 +25,18 @@ Extra files may be added next to `headless.apkovl.tar.gz` to customise boostrapp
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- `interfaces`[^3] (*optional*): define network interfaces at will, if defaults DCHP-based are not suitable.
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- `authorized_keys` (*optional*): provide client's public SSH key to secure `root` ssh login.
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- `ssh_host_*_key*` (*optional*): provide server's custom ssh keys to be injected (may be stored), instead of using bundled ones[^2] (not stored). Providing an empty key file will trigger new keys generation (ssh server may take longer to start).
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**Goody:** seamless USB-serial & USB-ethernet gadget mode (PiZero for instance):\
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On supporting Pi devices, just add `dtoverlay=dwc2,dr_mode=peripheral` in `usercfg.txt` (or `config.txt`), and plug USB cable into host Computer port.\
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Serial terminal can then be connected-to from host Computer (e.g. `cu -l ttyACM0` on Linux. xon/xoff flow control).\
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Alternatively, with host Computer set-up to share networking with USB interface as 10.42.0.1 gateway, one can log into device from host with: `ssh root@10.42.0.2`.
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- `auto-updt` (*optional*): allow apkovl file automatic update with latest from master branch. If it contains *reboot* keyword all in one line, system will reboot after succesful update (unless ssh session is active or `unattended.sh` script is available).
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Main execution steps are logged: `cat /var/log/messages | grep headless`.
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## Goody:
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Seamless USB-serial & USB-ethernet gadget mode (*e.g. PiZero*):
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- Make sure dwc2/dwc3 driver is loaded accordingly, and device configuration is set to `peripheral` mode: this may be hardware (including cable) and/or software driven.\
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(on supporting Pi devices, just add `dtoverlay=dwc2,dr_mode=peripheral` in `usercfg.txt` (or `config.txt`) to force by software)
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- Plug USB cable into host Computer port before boot.\
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Serial terminal can then be connected-to from host Computer (e.g. `cu -l ttyACM0` on Linux. xon/xoff flow control).\
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Alternatively, with host Computer set-up to share networking with USB interface as 10.42.0.1 gateway, one can log into device from host with: `ssh root@10.42.0.2`.
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[^1]: Initial boot fully preserves system's original state (config files & installed packages): a fresh system will therefore come-up as unconfigured.
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[^2]: About bundled ssh keys: this overlay is meant to **quickly bootstrap** system in order to then proceed with proper install; therefore it purposely embeds [some ssh keys](https://github.com/macmpi/alpine-linux-headless-bootstrap/tree/main/overlay/tmp/.trash) so that bootstrapping is as fast as possible. Those temporary keys are moved in RAM /tmp: they will **not be stored/reused** once actual system install is performed (whether or not ssh server is installed in final setup).
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Binary file not shown.
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@ -0,0 +1 @@
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36892e9aa76807941602160ff62948c8953eefa36f9b386a0c7302fc46710b473a3e14b7eaf223a1ae6ac6454a839c78049c311fdbd50a204b2a011cb8faa474 headless.apkovl.tar.gz
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3
make.sh
3
make.sh
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@ -30,7 +30,8 @@ if [ -n "$build_path" ]; then
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doas tar cv -C "$build_path"/overlay --no-recursion \
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$(doas find "$build_path"/overlay/ | sed "s|$build_path/overlay/||" | sort | xargs ) | \
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gzip -c9n > headless.apkovl.tar.gz
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TZ=UTC touch -cm -t "$t_stamp" headless.apkovl.tar.gz
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sha512sum headless.apkovl.tar.gz > headless.apkovl.tar.gz.sha512
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TZ=UTC touch -cm -t "$t_stamp" headless.apkovl.tar.gz*
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doas rm -rf "$build_path"
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fi
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@ -3,7 +3,7 @@
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# SPDX-FileCopyrightText: Copyright 2022-2023, macmpi
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# SPDX-License-Identifier: MIT
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HDLSBSTRP_VERSION="1.1"
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HDLSBSTRP_VERSION="1.2"
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_apk() {
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local cmd="$1"
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@ -12,11 +12,11 @@ _apk() {
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case $cmd in
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add) # install only if not already present
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if ! apk info | grep -wq "${pkg}"; then
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apk add "$pkg" && printf '%s ' "${pkg}" >> /tmp/.trash/installed
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apk add "$pkg" && printf '%s ' "${pkg}" >>/tmp/.trash/installed
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fi
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;;
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del) # delete only if previously installed
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if grep -wq "$pkg" /tmp/.trash/installed > /dev/null 2>&1; then
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if grep -wq "$pkg" /tmp/.trash/installed >/dev/null 2>&1; then
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apk del "$pkg" && sed -i 's/\b'"${pkg}"'\b//' /tmp/.trash/installed
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fi
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;;
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@ -27,14 +27,14 @@ _apk() {
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}
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_preserve() {
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# create a back-up of element (file, folder, symlink)
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# Create a back-up of element (file, folder, symlink).
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[ -z "${1}" ] && return 1
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[ -e "${1}" ] && cp -a "${1}" "${1}".orig
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}
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_restore() {
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# remove element (file, folder, symlink) and replace by
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# previous back-up if available
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# Remove element (file, folder, symlink) and replace by
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# previous back-up if available.
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[ -z "${1}" ] && return 1
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rm -rf "${1}"
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[ -e "${1}".orig ] && mv -f "${1}".orig "${1}"
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@ -46,11 +46,11 @@ alias _logger='logger -st "${0##*/}"'
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##### End of part to be duplicated into headless_cleanup (do not alter!)
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_prep_cleanup() {
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## Prep for final headless_cleanup
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# clears any installed packages and settings
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# copy begininng of this file to keep functions
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sed -n '/^#* End .*alter!)$/q;p' /usr/local/bin/headless_bootstrap > /tmp/.trash/headless_cleanup
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cat <<-EOF >> /tmp/.trash/headless_cleanup
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## Prep for final headless_cleanup:
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# clears any installed packages and settings.
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# Copy begininng of this file to keep functions.
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sed -n '/^#* End .*alter!)$/q;p' /usr/local/bin/headless_bootstrap >/tmp/.trash/headless_cleanup
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cat <<-EOF >>/tmp/.trash/headless_cleanup
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# Redirect stdout and errors to console as service won't show messages
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exec 1>/dev/console 2>&1
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@ -64,44 +64,45 @@ cat <<-EOF >> /tmp/.trash/headless_cleanup
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_restore "/etc/hostname"
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rm -f /etc/modprobe.d/headless_gadget.conf
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# remove from boot service to avoid spurious openrc recalls from unattended script
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# Remove from boot service to avoid spurious openrc recalls from unattended script.
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rm -f /etc/runlevels/default/headless_bootstrap
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rm -f /usr/local/bin/headless_bootstrap
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# Run unattended script if available
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install -m755 "${ovlpath}"/unattended.sh /tmp/headless_unattended > /dev/null 2>&1 && \
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# Run unattended script if available.
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install -m755 ${ovlpath}/unattended.sh /tmp/headless_unattended >/dev/null 2>&1 && \
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_logger "Starting headless_unattended service" && \
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rc-service headless_unattended start
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rm -f /etc/init.d/headless_*
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_logger "Clean-up done, enjoy !"
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cat /tmp/.trash/banner > /dev/console
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if [ -c /dev/ttyGS0 ]; then
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# Enabling terminal login into ttyGS0 serial for 60 sec
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# no choice than making permanent change to pre 3.19 versions of /etc/securetty
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grep -q "ttyGS0" /etc/securetty || echo "ttyGS0" >> /etc/securetty
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/sbin/getty -L 115200 ttyGS0 vt100 &
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cat /tmp/.trash/banner >/dev/console
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if [ -c /dev/ttyGS${gdgt_id} ]; then
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# Enabling terminal login into valid serial port:
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# no choice than making permanent change to /etc/securetty (Alpine 3.19 already has ttyGS0).
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grep -q "ttyGS${gdgt_id}" /etc/securetty || echo "ttyGS${gdgt_id}" >>/etc/securetty
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/sbin/getty -L 115200 /dev/ttyGS${gdgt_id} vt100 &
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fi
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exit 0
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EOF
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chmod +x /tmp/.trash/headless_cleanup
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}
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_setup_sshd() {
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## Setup temporary SSH server (root login, no password)
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# We use some bundled (or optionaly provided) keys to avoid generation at startup and save time
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## Setup temporary SSH server (root login, no password):
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# we use some bundled (or optionaly provided) keys to avoid generation at startup and save time.
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_apk add openssh-server
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_preserve "/etc/ssh/sshd_config"
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_preserve "/etc/conf.d/sshd"
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cat <<-EOF > /etc/ssh/sshd_config
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cat <<-EOF >/etc/ssh/sshd_config
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PermitRootLogin yes
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Banner /tmp/.trash/banner
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EOF
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# Client authorized_keys or no authentication
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if install -m600 "${ovlpath}"/authorized_keys /tmp/.trash/authorized_keys > /dev/null 2>&1; then
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# Client authorized_keys or no authentication.
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if install -m600 "${ovlpath}"/authorized_keys /tmp/.trash/authorized_keys >/dev/null 2>&1; then
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_logger "Enabling public key SSH authentication..."
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cat <<-EOF >> /etc/ssh/sshd_config
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cat <<-EOF >>/etc/ssh/sshd_config
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AuthenticationMethods publickey
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AuthorizedKeysFile /tmp/.trash/authorized_keys
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# relax strict mode as authorized_keys are inside /tmp
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@ -109,7 +110,7 @@ if install -m600 "${ovlpath}"/authorized_keys /tmp/.trash/authorized_keys > /dev
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EOF
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else
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_logger "No SSH authentication."
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cat <<-EOF >> /etc/ssh/sshd_config
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cat <<-EOF >>/etc/ssh/sshd_config
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AuthenticationMethods none
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PermitEmptyPasswords yes
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EOF
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@ -118,8 +119,8 @@ fi
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# Server keys: inject optional custom keys, or generate new (might be stored),
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# or use bundeled ones (not stored)
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local keygen_stance="sshd_disable_keygen=yes"
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if install -m600 "${ovlpath}"/ssh_host_*_key* /etc/ssh/ > /dev/null 2>&1; then
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# check for empty key within injected ones: if found, generate new keys
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if install -m600 "${ovlpath}"/ssh_host_*_key* /etc/ssh/ >/dev/null 2>&1; then
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# Check for empty key within injected ones: if found, generate new keys.
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if find /etc/ssh/ -maxdepth 1 -type f -name 'ssh_host_*_key*' -empty | grep -q .; then
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rm /etc/ssh/ssh_host_*_key*
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keygen_stance=""
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@ -130,63 +131,103 @@ if install -m600 "${ovlpath}"/ssh_host_*_key* /etc/ssh/ > /dev/null 2>&1; then
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fi
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else
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_logger "Using bundled ssh keys from RAM..."
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cat <<-EOF >> /etc/ssh/sshd_config
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cat <<-EOF >>/etc/ssh/sshd_config
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HostKey /tmp/.trash/ssh_host_ed25519_key
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HostKey /tmp/.trash/ssh_host_rsa_key
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EOF
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fi
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echo "$keygen_stance" >> /etc/conf.d/sshd
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echo "$keygen_stance" >>/etc/conf.d/sshd
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rc-service sshd restart
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}
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_updt_apkovl() {
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## Update apkovl overlay file & eventually reboot
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# URL redirects to apkovl file on github master: is.gd shortener provides basic analytics.
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# Analytics are public and can be checked at https://is.gd/stats.php?url=apkovl_master
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# Privacy policy: https://is.gd/privacy.php
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local file_url="https://is.gd/apkovl_master"
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local sha_url="https://github.com/macmpi/alpine-linux-headless-bootstrap/raw/main/headless.apkovl.tar.gz.sha512"
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local updt_status="failed, keeping original version"
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if wget -q -O /tmp/apkovl -T 10 "$file_url" >/dev/null 2>&1 && \
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wget -q -O /tmp/sha -T 10 "$sha_url" >/dev/null 2>&1 && \
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[ "$( sha512sum /tmp/apkovl | awk '{print $1}' )" = "$( awk '{print $1}' /tmp/sha )" ]; then
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_is_ro && mount -o remount,rw "${ovlpath}"
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cp /tmp/apkovl "${ovl}"
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_is_ro && mount -o remount,ro "${ovlpath}"
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! [ "$( sha512sum "${ovl}" | awk '{print $1}' )" = "$( awk '{print $1}' /tmp/sha )" ] && \
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_logger "Bad update: original apkovl file may be altered, please check!..." && return 1
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updt_status="successful"
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fi
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rm -f /tmp/apkovl /tmp/sha
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_logger "Update $updt_status"
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if [ "$updt_status" = "successful" ]; then
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printf '%s\n\n' "Updated" >>/tmp/.trash/banner
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else
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printf '\n' >>/tmp/.trash/banner
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return 1
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fi
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# Reboot if specified in auto-updt file (and no ssh session ongoing nor unattended.sh script available).
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! pgrep -a -P "$( cat /run/sshd.pid 2>/dev/null )" 2>/dev/null | grep -q "sshd: root@pts" && \
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! [ -f "${ovlpath}"/unattended.sh ] && \
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grep -q "^reboot$" "${ovlpath}"/auto-updt && \
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_logger "Will reboot in 3sec..." && sleep 3 && reboot
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exit 0
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}
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_tst_version() {
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# Tested URL redirects to github project page: is.gd shortener provides basic analytics.
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## Compare current version with latest online, notify & eventally calls for update
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# URL redirects to github project page: is.gd shortener provides basic analytics.
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# Analytics are public and can be checked at https://is.gd/stats.php?url=apkovl_run
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# Privacy policy: https://is.gd/privacy.php
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local new_vers=""
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local status="failed"
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local vers=""
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local ref="/macmpi/alpine-linux-headless-bootstrap/releases/tag/v"
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if wget -q -O /tmp/homepg -T 10 https://is.gd/apkovl_run > /dev/null 2>&1; then
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status="success"
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ver="$( grep -o "$ref.*\"" /tmp/homepg | grep -Eo '[0-9]+[\.[0-9]+]*' )"
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local url="https://is.gd/apkovl_run"
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if wget -q -O /tmp/homepg -T 10 "$url" >/dev/null 2>&1; then
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_logger "Internet access: success"
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vers="$( grep -o "$ref.*\"" /tmp/homepg | grep -Eo '[0-9]+[\.[0-9]+]*' )"
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rm -f /tmp/homepg
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[ -n "$ver" ] && ! [ "$ver" = "$HDLSBSTRP_VERSION" ] && \
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new_vers="!! Version $ver is available on Github project page !!" && \
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_logger "$new_vers" && \
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printf '%s\n\n' "$new_vers" >> /tmp/.trash/banner
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if [ -n "$vers" ] && ! [ "$vers" = "$HDLSBSTRP_VERSION" ]; then
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vers="!! Version $vers is available on Github project page !!"
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_logger "$vers"
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printf '%s\n' "$vers" >>/tmp/.trash/banner
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# Optionally update apkovl if key-file allows it.
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if [ -f "${ovlpath}"/auto-updt ]; then
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_logger "Updating overlay file..."
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_updt_apkovl &
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else
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_logger "(check doc to enable auto-update)"
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printf '%s\n\n' "(check doc to enable auto-update)" >>/tmp/.trash/banner
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fi
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fi
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else
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_logger "Internet access: failed"
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fi
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_logger "Internet access: $status"
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}
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_setup_networking() {
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## Setup Network interfaces
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local has_wifi
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## Setup network interfaces.
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local has_wifi wlan_lst
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_has_wifi() { return "$has_wifi"; }
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find /sys/class/ieee80211/*/device/net/* -maxdepth 0 -type d -exec basename {} \; > /tmp/.wlan_list 2>/dev/null
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[ -s /tmp/.wlan_list ] && [ -f "${ovlpath}"/wpa_supplicant.conf ]
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wlan_lst="$( find /sys/class/net/*/phy80211 -exec \
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sh -c 'printf %s\| "$( basename "$( dirname "$0" )" )"' {} \; 2>/dev/null )"
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wlan_lst="${wlan_lst%\|}"
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[ -n "$wlan_lst" ] && [ -f "${ovlpath}"/wpa_supplicant.conf ]
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has_wifi=$?
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if _has_wifi; then
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_logger "Configuring wifi..."
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_apk add wpa_supplicant
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_preserve "/etc/wpa_supplicant/wpa_supplicant.conf"
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install -m600 "${ovlpath}"/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
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rc-service wpa_supplicant restart
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else
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_logger "No wifi interface or SSID/pass file supplied"
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fi
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_preserve "/etc/network/interfaces"
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if ! install -m644 "${ovlpath}"/interfaces /etc/network/interfaces > /dev/null 2>&1; then
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if ! install -m644 "${ovlpath}"/interfaces /etc/network/interfaces >/dev/null 2>&1; then
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_logger "No interfaces file supplied, building defaults..."
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cat <<-EOF > /etc/network/interfaces
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cat <<-EOF >/etc/network/interfaces
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auto lo
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iface lo inet loopback
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EOF
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for dev in /sys/class/net/*; do
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# shellcheck disable=SC2034 # Unused IFINDEX while still sourced from uevent
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# shellcheck disable=SC2034 # Unused IFINDEX while still sourced from uevent.
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local DEVTYPE INTERFACE IFINDEX
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DEVTYPE=""
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# shellcheck source=/dev/null
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@ -195,31 +236,37 @@ if ! install -m644 "${ovlpath}"/interfaces /etc/network/interfaces > /dev/null 2
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lo)
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;;
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eth)
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cat <<-EOF >> /etc/network/interfaces
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cat <<-EOF >>/etc/network/interfaces
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auto $INTERFACE
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iface $INTERFACE inet dhcp
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EOF
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;;
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*)
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_has_wifi && grep -q "$INTERFACE" /tmp/.wlan_list && \
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cat <<-EOF >> /etc/network/interfaces
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# According to below we could rely on DEVTYPE for wlan devices
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# https://lists.freedesktop.org/archives/systemd-devel/2014-January/015999.html
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# but...some wlan might still be ill-behaved: use wlan_lst
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# shellcheck disable=SC2169 # ash does support string replacement.
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_has_wifi && ! [ "${wlan_lst/$INTERFACE/}" = "$wlan_lst" ] && \
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cat <<-EOF >>/etc/network/interfaces
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auto $INTERFACE
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iface $INTERFACE inet dhcp
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EOF
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# Ensure considered gadget interface is actually the connected one (may have several).
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[ "$DEVTYPE" = "gadget" ] && \
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cat <<-EOF >> /etc/network/interfaces && cat <<-EOF > /etc/resolv.conf
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auto $INTERFACE
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iface $INTERFACE inet static
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address 10.42.0.2/24
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gateway 10.42.0.1
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find /sys/class/udc/*/device/gadget."${gdgt_id}"/net/"$INTERFACE" -maxdepth 0 >/dev/null 2>&1 && \
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cat <<-EOF >>/etc/network/interfaces && cat <<-EOF >/etc/resolv.conf
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auto $INTERFACE
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iface $INTERFACE inet static
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address 10.42.0.2/24
|
||||
gateway 10.42.0.1
|
||||
|
||||
EOF
|
||||
nameserver 208.67.222.222
|
||||
nameserver 208.67.220.220
|
||||
EOF
|
||||
nameserver 208.67.222.222
|
||||
nameserver 208.67.220.220
|
||||
|
||||
EOF
|
||||
EOF
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
|
@ -230,35 +277,53 @@ echo "Using following network interfaces:"
|
|||
cat /etc/network/interfaces
|
||||
echo "###################################"
|
||||
|
||||
if _has_wifi && grep -qE "$wlan_lst" /etc/network/interfaces; then
|
||||
_logger "Configuring wifi..."
|
||||
_apk add wpa_supplicant
|
||||
_preserve "/etc/wpa_supplicant/wpa_supplicant.conf"
|
||||
install -m600 "${ovlpath}"/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
|
||||
rc-service wpa_supplicant restart
|
||||
else
|
||||
_logger "No wifi interface or SSID/pass file supplied"
|
||||
fi
|
||||
|
||||
_preserve "/etc/hostname"
|
||||
echo "alpine-headless" > /etc/hostname
|
||||
echo "alpine-headless" >/etc/hostname
|
||||
hostname -F /etc/hostname
|
||||
|
||||
rc-service networking restart
|
||||
rm -f /tmp/.wlan_list
|
||||
}
|
||||
|
||||
_setup_gadget() {
|
||||
## load composite USB Serial/USB Ethernel driver & setup terminal
|
||||
## Load composite USB Serial/USB Ethernel driver & setup terminal.
|
||||
_logger "Enabling USB-gadget Serial and Ethernet ports"
|
||||
lsmod | grep -q "dwc2" || modprobe -qs dwc2
|
||||
# remove conflicting modules in case they were initially loaded (cmdline.txt)
|
||||
modprobe -rq g_serial g_ether g_cdc
|
||||
modprobe -q g_cdc && sleep 1
|
||||
# once driver has settled check if cable is connected: unload if not
|
||||
[ "$( cat "$udc_gadget"/current_speed )" = "UNKNOWN" ] && \
|
||||
_logger "USB cable not connected !!" && modprobe -rq g_cdc && return 1
|
||||
# Remove conflicting modules in case they were initially loaded (cmdline.txt).
|
||||
modprobe -r g_serial g_ether g_cdc
|
||||
modprobe g_cdc
|
||||
# Wait for g_cdc to settle and serial ports become available
|
||||
timeout 1 sh <<-EOF
|
||||
while ! grep -q "ttyGS" /proc/devices; do sleep 0.2; done
|
||||
EOF
|
||||
|
||||
# default serial config: xon/xoff flow control
|
||||
stty -g -F /dev/ttyGS0 >/dev/null 2>&1
|
||||
# notes to users willing to connect from Linux Ubuntu-based host terminal:
|
||||
# - user on host needs to be part of dialout group (reboot required), and
|
||||
# - disable spurious AT commands from ModemManager on host-side Gadget serial port
|
||||
# you may create a /etc/udev/rules.d/99-ttyacms-gadget.rules as per:
|
||||
# https://linux-tips.com/t/prevent-modem-manager-to-capture-usb-serial-devices/284/2
|
||||
# ATTRS{idVendor}=="0525" ATTRS{idProduct}=="a4aa", ENV{ID_MM_DEVICE_IGNORE}="1"
|
||||
|
||||
setconsole /dev/ttyGS0
|
||||
# Determine which gadget ID is connected with USB cable (assume just one max).
|
||||
# (setting console to unconnected serial port would block boot)
|
||||
gdgt_id="$( find /sys/class/udc/*/current_speed -exec \
|
||||
sh -c 'grep -vq "UNKNOWN" "$0" && find ${0/current_speed/}device/gadget.* -maxdepth 0' {} \; \
|
||||
| sed 's/\/.*gadget\.//' )"
|
||||
if [ -c /dev/ttyGS"${gdgt_id}" ]; then
|
||||
# Default serial config: xon/xoff flow control.
|
||||
stty -F /dev/ttyGS"${gdgt_id}"
|
||||
setconsole /dev/ttyGS"${gdgt_id}"
|
||||
# Notes to users willing to connect from Linux Ubuntu-based host terminal:
|
||||
# - user on host needs to be part of dialout group (reboot required), and
|
||||
# - disable spurious AT commands from ModemManager on host-side Gadget serial port
|
||||
# one may create a /etc/udev/rules.d/99-ttyacms-gadget.rules as per:
|
||||
# https://linux-tips.com/t/prevent-modem-manager-to-capture-usb-serial-devices/284/2
|
||||
# ATTRS{idVendor}=="0525" ATTRS{idProduct}=="a4aa", ENV{ID_MM_DEVICE_IGNORE}="1"
|
||||
else
|
||||
_logger "USB-gadget port not connected !"
|
||||
modprobe -r g_cdc
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -269,31 +334,35 @@ setconsole /dev/ttyGS0
|
|||
exec 1>/dev/console 2>&1
|
||||
_logger "Alpine Linux headless bootstrap v$HDLSBSTRP_VERSION by macmpi"
|
||||
|
||||
# help randomness for wpa_supplicant and sshd (urandom until 3.16)
|
||||
# Help randomness for wpa_supplicant and sshd (urandom until 3.16).
|
||||
rc-service seedrng restart || rc-service urandom restart
|
||||
|
||||
# setup USB gadget mode if such device mode is enabled
|
||||
udc_gadget="$( dirname "$( find -L /sys/class/udc/* -maxdepth 2 -type f -name "is_a_peripheral" 2>/dev/null)" )"
|
||||
[ "$( cat "$udc_gadget"/is_a_peripheral 2>/dev/null )" = "0" ] && \
|
||||
_setup_gadget
|
||||
# Setup USB gadget ports if some ports are enabled in peripheral mode.
|
||||
# Note: we assume dwc2/dwc3 is pre-loaded, we just check mode.
|
||||
gdgt_id=""
|
||||
find /sys/class/udc/*/is_a_peripheral -print0 2>/dev/null | \
|
||||
xargs -0 cat 2>/dev/null | grep -q "0" && \
|
||||
_setup_gadget
|
||||
|
||||
# Determine ovl file location
|
||||
# grab used ovl filename from dmesg
|
||||
# Determine ovl file location.
|
||||
# Grab used ovl filename from dmesg.
|
||||
ovl="$( dmesg | grep -o 'Loading user settings from .*:' | awk '{print $5}' | sed 's/:.*$//' )"
|
||||
if [ -f "${ovl}" ]; then
|
||||
ovlpath="$( dirname "$ovl" )"
|
||||
else
|
||||
# search path again as mountpoint have been changed later in the boot process...
|
||||
# Search path again as mountpoint have been changed later in the boot process...
|
||||
ovl="$( basename "${ovl}" )"
|
||||
ovlpath=$( find /media -maxdepth 2 -type d -path '*/.*' -prune -o -type f -name "${ovl}" -exec dirname {} \; | head -1 )
|
||||
ovl="${ovlpath}/${ovl}"
|
||||
fi
|
||||
|
||||
# Create banner file
|
||||
# Create banner file.
|
||||
warn=""
|
||||
grep -q "${ovlpath}.*[[:space:]]ro[[:space:],]" /proc/mounts; RO=$?
|
||||
[ "$RO" -eq "0" ] && warn="(remount partition rw!)"
|
||||
cat <<-EOF > /tmp/.trash/banner
|
||||
grep -q "${ovlpath}.*[[:space:]]ro[[:space:],]" /proc/mounts; is_ro=$?
|
||||
_is_ro() { return "$is_ro"; }
|
||||
|
||||
_is_ro && warn="(remount partition rw!)"
|
||||
cat <<-EOF >/tmp/.trash/banner
|
||||
|
||||
Alpine Linux headless bootstrap v$HDLSBSTRP_VERSION by macmpi
|
||||
|
||||
|
|
@ -306,12 +375,12 @@ cat <<-EOF > /tmp/.trash/banner
|
|||
|
||||
_setup_networking
|
||||
|
||||
# Test latest available version online
|
||||
# Can be skipped by creating a 'opt-out'-named dummy file aside apkovl file
|
||||
# Test latest available version online.
|
||||
# Can be skipped by creating a 'opt-out'-named dummy file aside apkovl file.
|
||||
[ -f "${ovlpath}"/opt-out ] || _tst_version &
|
||||
|
||||
# setup sshd unless unattended.sh script prevents it
|
||||
grep -q "^#NO_SSH$" "${ovlpath}"/unattended.sh > /dev/null 2>&1 \
|
||||
# Setup sshd unless unattended.sh script prevents it.
|
||||
grep -q "^#NO_SSH$" "${ovlpath}"/unattended.sh >/dev/null 2>&1 \
|
||||
|| _setup_sshd
|
||||
|
||||
_prep_cleanup
|
||||
|
|
|
|||
|
|
@ -0,0 +1,10 @@
|
|||
# SPDX-FileCopyrightText: Copyright 2022-2023, macmpi
|
||||
# SPDX-License-Identifier: MIT
|
||||
|
||||
# Automated reboot after update is cancelled if:
|
||||
# - there is an opened ssh session
|
||||
# - unattended.sh script is provided
|
||||
|
||||
# Uncomment line below to enable reboot after update
|
||||
#reboot
|
||||
|
||||
|
|
@ -37,10 +37,11 @@ else
|
|||
fi
|
||||
|
||||
# also works in case volume is mounted read-only
|
||||
grep -q "${ovlpath}.*[[:space:]]ro[[:space:],]" /proc/mounts; RO=$?
|
||||
[ "$RO" -eq "0" ] && mount -o remount,rw "${ovlpath}"
|
||||
grep -q "${ovlpath}.*[[:space:]]ro[[:space:],]" /proc/mounts; is_ro=$?
|
||||
_is_ro() { return "$is_ro"; }
|
||||
_is_ro && mount -o remount,rw "${ovlpath}"
|
||||
rm -f "${ovl}"
|
||||
[ "$RO" -eq "0" ] && mount -o remount,ro "${ovlpath}"
|
||||
_is_ro && mount -o remount,ro "${ovlpath}"
|
||||
|
||||
########################################################
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue