Marc S. Weidner
62463f35ec
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
279 lines
8.3 KiB
Bash
279 lines
8.3 KiB
Bash
#!/bin/sh
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# bashsupport disable=BP5007
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# shellcheck disable=SC2249
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# shellcheck shell=sh
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-11-12; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: GPL-3.0-or-later
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.live.builder
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# SPDX-Security-Contact: security@coresecret.eu
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### Modified Version of the original file:
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### https://salsa.debian.org/live-team/live-boot 'components/9990-main.shh'
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### Change behavior to mount already opened ciss_rootfs.crypt (0024-ciss-crypt-squash).
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# set -e
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printf "\e[95m[INFO] Sourcing : [/usr/lib/live/boot/9990-main.sh] \n\e[0m"
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Live ()
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{
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printf "\e[95m[INFO] Starting : [/usr/lib/live/boot/9990-main.sh] \n\e[0m"
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if [ -x /scripts/local-top/cryptroot ]
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then
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/scripts/local-top/cryptroot
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fi
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exec 6>&1
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exec 7>&2
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exec > boot.log
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exec 2>&1
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tail -f boot.log >&7 &
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tailpid="${!}"
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# shellcheck disable=SC2034
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LIVE_BOOT_CMDLINE="${LIVE_BOOT_CMDLINE:-$(cat /proc/cmdline)}"
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Cmdline_old
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Debug
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Read_only
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Select_eth_device
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if [ -e /conf/param.conf ]
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then
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. /conf/param.conf
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fi
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# Needed here too because some things (*cough* udev *cough*)
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# change the timeout
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printf "\e[93m[DEBUG] live(): Before do_netmount() pp. \e[0m\n"
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if [ -n "${NETBOOT}" ] || [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ]
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then
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if do_netmount
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then
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printf "\e[93m[DEBUG] live(): [livefs_root=%s] \e[0m\n" "${mountpoint?}"
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livefs_root="${mountpoint?}"
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else
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panic "Unable to find a live file system on the network"
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fi
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else
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if [ -n "${ISCSI_PORTAL}" ]
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then
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printf "\e[93m[DEBUG] live(): [do_iscsi && livefs_root=%s] \e[0m\n" "${mountpoint?}"
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do_iscsi && livefs_root="${mountpoint}"
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elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
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then
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# Do a local boot from hd
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printf "\e[93m[DEBUG] live(): Do a local boot from hd [livefs_root=%s] \e[0m\n" "${ROOT?}"
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livefs_root=${ROOT}
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else
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printf "\e[93m[DEBUG] live(): [Setup_Memdisk] starting ... \e[0m\n"
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Setup_Memdisk
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printf "\e[93m[DEBUG] live(): [Setup_Memdisk] finished. \e[0m\n"
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# If the live media location is given via command line and access to it
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# involves LVM volumes, the corresponding volumes need to be activated.
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IFS=','
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# shellcheck disable=SC2116
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for dev in $(echo "${LIVE_MEDIA}")
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do
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printf "\e[93m[DEBUG] live(): [%s] -> dev \e[0m\n" "${dev}"
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case "${dev}" in
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/dev/mapper/*)
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# shellcheck disable=SC2046,SC2312
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eval $(dmsetup splitname --nameprefixes --noheadings --rows "${dev#/dev/mapper/}")
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# shellcheck disable=SC2244
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if [ "${DM_VG_NAME}" ] && [ "${DM_LV_NAME}" ]
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then
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lvm lvchange -aay -y --sysinit --ignoreskippedcluster "${DM_VG_NAME}/${DM_LV_NAME}"
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fi
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;;
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/dev/*/*)
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# Could be /dev/VG/LV; use lvs to check
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if lvm lvs -- "${dev}" >/dev/null 2>&1
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then
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lvm lvchange -aay -y --sysinit --ignoreskippedcluster "${dev}"
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fi
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;;
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esac
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done
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unset IFS
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### Skip autodetection, '$livefs_root' was pre-seeded by '0024-ciss-crypt-squash'. ---------------------------------------
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if [ -n "${livefs_root:-}" ]; then
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printf "\e[92m[INFO] live() : Using preseeded [livefs_root=%s] skipping autodetect. \e[0m\n" "${livefs_root}"
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else
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### Scan local devices for the image.
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i=0
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while [ "${i}" -lt 60 ]; do
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# shellcheck disable=SC2086
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livefs_root=$(find_livefs ${i})
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if [ -n "${livefs_root}" ]; then
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break
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fi
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sleep 1
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i=$((i + 1))
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done
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fi
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fi
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fi
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printf "\e[93m[DEBUG] live(): [%s] -> livefs_root. \e[0m\n" "${livefs_root}"
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if [ -z "${livefs_root}" ]; then
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printf "\e[91m[FATAL] live() : Unable to find a medium containing a live file system. \e[0m\n"
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sleep 60
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log "[FATAL] live() : Unable to find a medium containing a live file system."
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panic "[FATAL] live() : Unable to find a medium containing a live file system."
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fi
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printf "\e[93m[DEBUG] live(): Before [Verify_checksums %s] \e[0m\n" "${livefs_root}"
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Verify_checksums "${livefs_root}"
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# shellcheck disable=SC2244
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if [ "${TORAM}" ]; then
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live_dest="ram"
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elif [ "${TODISK}" ]; then
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live_dest="${TODISK}"
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fi
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# shellcheck disable=SC2244
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if [ "${live_dest}" ]; then
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log_begin_msg "Copying live media to ${live_dest}"
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copy_live_to "${livefs_root}" "${live_dest}"
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log_end_msg
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fi
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# if we do not unmount the ISO, we can't run "fsck /dev/ice" later on
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# because the mountpoint is left behind in /proc/mounts, so let's get
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# rid of it when running from RAM
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# shellcheck disable=SC2244
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if [ -n "${FROMISO}" ] && [ "${TORAM}" ]; then
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losetup -d /dev/loop0
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if is_mountpoint /run/live/fromiso; then
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umount /run/live/fromiso
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rmdir --ignore-fail-on-non-empty /run/live/fromiso >/dev/null 2>&1 || true
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fi
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fi
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printf "\e[93m[DBG] Live(): before overlay, live_dest=%s \e[0m\n" "${live_dest:-<none>}"
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printf "\e[93m[DBG] Live(): MODULETORAMFILE=%s PLAIN_ROOT=%s \e[0m\n" "${MODULETORAMFILE}" "${PLAIN_ROOT}"
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if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
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then
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printf "\e[93m[DBG] Live(): setup_unionfs livefs_root=%s rootmnt=%s \e[0m\n" "${livefs_root}" "${rootmnt?}"
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setup_unionfs "${livefs_root}" "${rootmnt?}"
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else
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mac="$(get_mac)"
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mac="$(echo "${mac}" | sed 's/-//g')"
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printf "\e[93m[DBG] Live(): mount_images_in_directory livefs_root=%s rootmnt=%s mac=%s \e[0m\n" "${livefs_root}" "${rootmnt}" "${mac}"
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mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
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fi
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if [ -n "${ROOT_PID}" ]
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then
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echo "${ROOT_PID}" > "${rootmnt}"/lib/live/root.pid
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fi
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log_end_msg
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# aufs2 in kernel versions around 2.6.33 has a regression:
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# directories can't be accessed when read for the first time,
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# causing a failure, for example, when accessing /var/lib/fai
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# when booting FAI, this simple workaround solves it
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ls /root/* >/dev/null 2>&1
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# if we do not unmount the ISO, we can't run "fsck /dev/ice" later on
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# because the mountpoint is left behind in /proc/mounts, so let's get
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# rid of it when running from RAM
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# shellcheck disable=SC2244
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if [ -n "${FINDISO}" ] && [ "${TORAM}" ]
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then
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losetup -d /dev/loop0
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if is_mountpoint /run/live/findiso
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then
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umount /run/live/findiso
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rmdir --ignore-fail-on-non-empty /run/live/findiso \
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>/dev/null 2>&1 || true
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fi
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fi
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if [ -f /etc/hostname ] && ! grep -E -q -v '^[[:space:]]*(#|$)' "${rootmnt}/etc/hostname"
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then
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log_begin_msg "Copying /etc/hostname to ${rootmnt}/etc/hostname"
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cp -v /etc/hostname "${rootmnt}/etc/hostname"
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log_end_msg
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fi
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if [ -f /etc/hosts ] && ! grep -E -q -v '^[[:space:]]*(#|$|(127.0.0.1|::1|ff02::[12])[[:space:]])' "${rootmnt}/etc/hosts"
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then
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log_begin_msg "Copying /etc/hosts to ${rootmnt}/etc/hosts"
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cp -v /etc/hosts "${rootmnt}/etc/hosts"
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log_end_msg
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fi
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if [ -L /root/etc/resolv.conf ] ; then
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# assume we have resolvconf
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DNSFILE="${rootmnt}/etc/resolvconf/resolv.conf.d/base"
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else
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DNSFILE="${rootmnt}/etc/resolv.conf"
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fi
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if [ -f /etc/resolv.conf ] && ! grep -E -q -v '^[[:space:]]*(#|$)' "${DNSFILE}"
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then
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log_begin_msg "Copying /etc/resolv.conf to ${DNSFILE}"
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cp -v /etc/resolv.conf "${DNSFILE}"
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log_end_msg
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fi
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if ! [ -d "/lib/live/boot" ]
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then
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panic "A wrong rootfs was mounted."
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fi
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Fstab
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Netbase
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Swap
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exec 1>&6 6>&-
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exec 2>&7 7>&-
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kill "${tailpid}"
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[ -w "${rootmnt}/var/log/" ] && mkdir -p "${rootmnt}/var/log/live" && ( \
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cp boot.log "${rootmnt}/var/log/live" 2>/dev/null; \
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cp fsck.log "${rootmnt}/var/log/live" 2>/dev/null )
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printf "\e[92m[INFO] Successfully applied : [/usr/lib/live/boot/9990-main.sh] ... \n\e[0m"
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}
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