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Diffstat (limited to 'system-boot/components/9990-main.sh')
| -rwxr-xr-x | system-boot/components/9990-main.sh | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/system-boot/components/9990-main.sh b/system-boot/components/9990-main.sh new file mode 100755 index 0000000..ed48be3 --- /dev/null +++ b/system-boot/components/9990-main.sh @@ -0,0 +1,195 @@ +#!/bin/sh + +# set -e + +Live () +{ + if [ -x /scripts/local-top/cryptroot ] + then + /scripts/local-top/cryptroot + fi + + exec 6>&1 + exec 7>&2 + exec > boot.log + exec 2>&1 + tail -f boot.log >&7 & + tailpid="${!}" + + LIVE_BOOT_CMDLINE="${LIVE_BOOT_CMDLINE:-$(cat /proc/cmdline)}" + Cmdline_old + + Debug + + Read_only + + Select_eth_device + + if [ -e /conf/param.conf ] + then + . /conf/param.conf + fi + + # Needed here too because some things (*cough* udev *cough*) + # changes the timeout + + if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ] + then + if do_netmount + then + livefs_root="${mountpoint}" + else + panic "Unable to find a live file system on the network" + fi + else + if [ -n "${ISCSI_PORTAL}" ] + then + do_iscsi && livefs_root="${mountpoint}" + elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ] + then + # Do a local boot from hd + livefs_root=${ROOT} + else + if [ -x /usr/bin/memdiskfind ] + then + MEMDISK=$(/usr/bin/memdiskfind) + + if [ $? -eq 0 ] + then + # We found a memdisk, set up phram + modprobe phram phram=memdisk,${MEMDISK} + modprobe phram phram=memdisk,${MEMDISK} + + # Load mtdblock, the memdisk will be /dev/mtdblock0 + modprobe mtdblock + fi + fi + + # Scan local devices for the image + i=0 + while [ "$i" -lt 60 ] + do + livefs_root=$(find_livefs ${i}) + + if [ -n "${livefs_root}" ] + then + break + fi + + sleep 1 + i="$(($i + 1))" + done + fi + fi + + if [ -z "${livefs_root}" ] + then + panic "Unable to find a medium containing a live file system" + fi + + Verify_checksums "${livefs_root}" + + if [ "${TORAM}" ] + then + live_dest="ram" + elif [ "${TODISK}" ] + then + live_dest="${TODISK}" + fi + + if [ "${live_dest}" ] + then + log_begin_msg "Copying live media to ${live_dest}" + copy_live_to "${livefs_root}" "${live_dest}" + log_end_msg + fi + + # if we do not unmount the ISO we can't run "fsck /dev/ice" later on + # because the mountpoint is left behind in /proc/mounts, so let's get + # rid of it when running from RAM + if [ -n "$FROMISO" ] && [ "${TORAM}" ] + then + losetup -d /dev/loop0 + + if is_mountpoint /run/live/fromiso + then + umount /run/live/fromiso + rmdir --ignore-fail-on-non-empty /run/live/fromiso \ + >/dev/null 2>&1 || true + fi + fi + + if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ] + then + setup_unionfs "${livefs_root}" "${rootmnt}" + else + mac="$(get_mac)" + mac="$(echo ${mac} | sed 's/-//g')" + mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}" + fi + + if [ -n "${ROOT_PID}" ] + then + echo "${ROOT_PID}" > "${rootmnt}"/lib/live/root.pid + fi + + log_end_msg + + # aufs2 in kernel versions around 2.6.33 has a regression: + # directories can't be accessed when read for the first the time, + # causing a failure for example when accessing /var/lib/fai + # when booting FAI, this simple workaround solves it + ls /root/* >/dev/null 2>&1 + + # if we do not unmount the ISO we can't run "fsck /dev/ice" later on + # because the mountpoint is left behind in /proc/mounts, so let's get + # rid of it when running from RAM + if [ -n "$FINDISO" ] && [ "${TORAM}" ] + then + losetup -d /dev/loop0 + + if is_mountpoint /run/live/findiso + then + umount /run/live/findiso + rmdir --ignore-fail-on-non-empty /run/live/findiso \ + >/dev/null 2>&1 || true + fi + fi + + if [ -L /root/etc/resolv.conf ] ; then + # assume we have resolvconf + DNSFILE="${rootmnt}/etc/resolvconf/resolv.conf.d/base" + else + DNSFILE="${rootmnt}/etc/resolv.conf" + fi + if [ -f /etc/resolv.conf ] && ! grep -E -q -v '^[[:space:]]*#|^[[:space:]]*$' ${DNSFILE} + then + log_begin_msg "Copying /etc/resolv.conf to ${DNSFILE}" + cp -v /etc/resolv.conf ${DNSFILE} + log_end_msg + fi + + if ! [ -d "/lib/live/boot" ] + then + panic "A wrong rootfs was mounted." + fi + + # avoid breaking existing user scripts that rely on the old path + # this includes code that checks what is mounted on /lib/live/mount/* + # (eg: grep /lib/live /proc/mount) + # XXX: to be removed before the bullseye release + mkdir -p ${rootmnt}/lib/live/mount + mount --rbind /run/live ${rootmnt}/lib/live/mount + + Fstab + Netbase + + Swap + + exec 1>&6 6>&- + exec 2>&7 7>&- + kill ${tailpid} + [ -w "${rootmnt}/var/log/" ] && mkdir -p "${rootmnt}/var/log/live" && ( \ + cp boot.log "${rootmnt}/var/log/live" 2>/dev/null; \ + cp fsck.log "${rootmnt}/var/log/live" 2>/dev/null ) +} |