diff options
Diffstat (limited to 'abs/not_built/core/linhes-live/lib/initcpio/hooks/larch1')
| -rw-r--r-- | abs/not_built/core/linhes-live/lib/initcpio/hooks/larch1 | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/abs/not_built/core/linhes-live/lib/initcpio/hooks/larch1 b/abs/not_built/core/linhes-live/lib/initcpio/hooks/larch1 new file mode 100644 index 0000000..88ccc3e --- /dev/null +++ b/abs/not_built/core/linhes-live/lib/initcpio/hooks/larch1 @@ -0,0 +1,125 @@ +# vim: set ft=sh: + +# larch1 - live 'hook' for mkinitcpio: set up tmpfs and find boot device + +# Author: Michael Towers (gradgrind) <mt.42@web.de> +# +# This file is part of the larch project. +# +# larch is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# larch is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with larch; if not, write to the Free Software Foundation, Inc., +# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#---------------------------------------------------------------------------- +#2008.02.11 + +# Replacement for msg which includes leading and trailing spaces +msg_ () { [ "${quiet}" != "y" ] && echo "$@"; } + +# Try to mount a disk, partition or cdrom and look for the file +# 'larchboot' in the /larch directory. +# If LiveCD system found in the device, return 0, else return 1 +# and leave the device mounted. +# $1 = device name (e.g. "/dev/hda2") +# $2 = directory where devices will be mounted +# +test_live_data_dir () +{ + /bin/mount -r -t iso9660 "$1" $2 >/dev/null 2>/dev/null || \ + /bin/mount -r -t vfat -o noatime,nodiratime "$1" $2 >/dev/null 2>/dev/null || \ + /bin/mount -r -t ext2 -o noatime,nodiratime "$1" $2 >/dev/null 2>/dev/null + if [ $? -eq 0 ]; then + if [ -f "$2/larch/larchboot" ]; then + LDEV="$1" + msg_ " ... found at $1" + return 0 + else + /bin/umount $2 2>/dev/null + msg_ " ... $1 mounted, but no 'larch/larchboot' found" + fi + else + msg_ " ... not $1" + fi + return 1 +} + +run_hook () +{ + msg_ ":: Creating writeable filesystem (tmpfs)" + /bin/mkdir "/tfs" + # Boot option copy-to-ram (c2r) + if [ "${c2r}" = "y" ]; then + TFSSIZE="90%" + else + TFSSIZE="60%" + fi + /bin/mount -t tmpfs -o "size=${TFSSIZE}" tmpfs "/tfs" + + # Directory for test mounts (and then for live CD) + cdmount="/livecd" + /bin/mkdir "${cdmount}" + + # look for livecd data directory, first try ${root} + LDEV="${root}" + if [ "x${LDEV}" != "x" ]; then + /bin/mount -r -t iso9660 "${LDEV}" "${cdmount}" >/dev/null 2>/dev/null || \ + /bin/mount -r -t vfat -o noatime,nodiratime "${LDEV}" "${cdmount}" >/dev/null 2>/dev/null || \ + /bin/mount -r -t ext2 -o noatime,nodiratime "${LDEV}" "${cdmount}" >/dev/null 2>/dev/null + if [ $? -eq 0 ]; then + if [ -d "${cdmount}/larch" ]; then + msg_ ":: larch system at ${LDEV}" + else + /bin/umount "${cdmount}" 2>/dev/null + echo "!! No larch system at ${LDEV}" + LDEV="" + fi + else + echo "!! Couldn't mount ${LDEV}" + LDEV="" + fi + fi + + # then try cdroms + if [ "x${LDEV}" = "x" ]; then + msg_ ":: Looking for boot device" + cdroms=$( /bin/cat /proc/sys/dev/cdrom/info | { while read a b c; do + if [ "${a}" = "drive" -a "${b}" = "name:" ]; then + echo "${c}" + break + fi + done + } ) + for i in ${cdroms}; do + test_live_data_dir "/dev/${i}" "${cdmount}" + if [ $? -eq 0 ]; then break; fi + done + fi + + # test USB devices (and disks) repeatedly until timed out + if [ "x${LDEV}" = "x" ]; then + msg_ ":: Searching for usb (and disk) devices .." + for i in 1 2 3 4 5; do + msg_ " :wait ${i} :::" + /bin/sleep ${i} + for d in /dev/sd[a-z][0-9]*; do + test_live_data_dir "${d}" "${cdmount}" + if [ $? -eq 0 ]; then break 2; fi + done + msg_ ":: Searching for usb cdroms .." + for d in /dev/sr[0-9]*; do + test_live_data_dir "${d}" "${cdmount}" + if [ $? -eq 0 ]; then break 2; fi + done + done + fi +} |