nmemmertandClaude Sonnet 4.6
5de7cfec78
getarg's trailing-= convention varies by mkinitcpio version and was returning empty even when archisosearchuuid was present in cmdline. Parse /proc/cmdline directly in ash — no external tools, no version sensitivity. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
66 lines
2.1 KiB
Bash
66 lines
2.1 KiB
Bash
#!/usr/bin/ash
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archiso_mount_handler() {
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local _new_root="$1"
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local _uuid _label _basedir _dev _img _param
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for _param in $(cat /proc/cmdline); do
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case "$_param" in
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archisosearchuuid=*) _uuid="${_param#archisosearchuuid=}" ;;
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archisolabel=*) _label="${_param#archisolabel=}" ;;
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archisobasedir=*) _basedir="${_param#archisobasedir=}" ;;
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esac
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done
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: "${_basedir:=arch}"
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if [ -z "${_uuid}" ] && [ -z "${_label}" ]; then
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echo "archiso: neither archisosearchuuid nor archisolabel in kernel cmdline"
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return 1
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fi
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local _waited=0
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while [ "${_waited}" -lt 30 ]; do
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if [ -n "${_uuid}" ]; then
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_dev="$(blkid -l -o device -t UUID="${_uuid}" 2>/dev/null)"
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else
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_dev="$(blkid -l -o device -t LABEL="${_label}" 2>/dev/null)"
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fi
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[ -n "${_dev}" ] && break
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sleep 1
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_waited=$(( _waited + 1 ))
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done
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if [ -z "${_dev}" ]; then
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echo "archiso: could not find boot medium (uuid=${_uuid} label=${_label})"
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return 1
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fi
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echo "archiso: found boot medium ${_dev}"
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mkdir -p /run/archiso/bootmnt
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mount -r "${_dev}" /run/archiso/bootmnt || { echo "archiso: mount bootmnt failed"; return 1; }
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_img="/run/archiso/bootmnt/${_basedir}/x86_64/airootfs.sfs"
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if [ ! -e "${_img}" ]; then
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echo "archiso: squashfs not found at ${_img}"
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return 1
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fi
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mkdir -p /run/archiso/airootfs
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mount -r -t squashfs "${_img}" /run/archiso/airootfs || { echo "archiso: squashfs mount failed"; return 1; }
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mkdir -p /run/archiso/overlay
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mount -t tmpfs tmpfs -o mode=0755 /run/archiso/overlay
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mkdir -p /run/archiso/overlay/upper /run/archiso/overlay/work
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mount -t overlay overlay \
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-o lowerdir=/run/archiso/airootfs,upperdir=/run/archiso/overlay/upper,workdir=/run/archiso/overlay/work \
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"${_new_root}" || { echo "archiso: overlay mount failed"; return 1; }
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echo "archiso: live root mounted on ${_new_root}"
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}
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run_hook() {
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mount_handler="archiso_mount_handler"
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}
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