72 lines
2.2 KiB
Bash
72 lines
2.2 KiB
Bash
# vim: set ft=sh:
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run_hook ()
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{
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if [ "x${ramdisk_size}" = "x" ]; then
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ramdisk_size="75%"
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fi
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msg -n ":: Mounting tmpfs, size=${ramdisk_size}..."
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mount -t tmpfs -o "size=${ramdisk_size}" tmpfs /tmpfs
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mkdir /tmpfs/bootcd
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msg "done."
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squashfound=0
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#TODO check for usb devices as well...
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msg -n ":: Scanning for boot cdrom device..."
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squashimg="/tmpfs/bootcd/archlive.sqfs"
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/bin/modprobe -q isofs >/dev/null 2>&1
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PS1="ramfs$ " /bin/sh -i
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for cdrom in /dev/cd/*; do
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if mount -r -t isofs "${cdrom}" /tmpfs/bootcd >/dev/null 2>&1; then
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if [ -e "${squashimg}" ]; then
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squashfound=1
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msg "${cdrom}"
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break
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fi
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else
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echo "Failed to mount ${cdrom}"
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fi
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[ ${squashfound} -eq 0 ] && umount /tmpfs/bootcd >/dev/null 2>&1
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done
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if [ ${squashfound} -eq 0 ]; then
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echo "ERROR: cannot find booted cdrom device, cannot continue..."
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exit 1
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fi
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if [ "${copytoram}" == "y" ]; then
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/bin/cat /tmpfs/bootcd/archlive.sqfs > /tmpfs/archlive.sqfs
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squashimg="/tmpfs/archlive.sqfs"
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fi
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msg -n ":: Mounting squashfs image..."
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/bin/modprobe -q squashfs >/dev/null 2>&1
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/bin/mkdir -p /tmpfs/squashfs_root
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if ! /bin/losetup /dev/loop0 "${squashimg}"; then
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echo "ERROR: Cannot mount loop device /dev/loop0...aborting"
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exit 1
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fi
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/bin/mount -r -t squashfs /dev/loop0 /tmpfs/squashfs_root
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msg "done."
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msg -n ":: Mounting root (union) filesystem..."
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/bin/modprobe -q unionfs >/dev/null 2>&1
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/bin/mount -t unionfs -o dirs=/tmpfs=rw:/tmpfs/squashfs_root=ro,debug=0 none /real_root
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msg "done."
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if [ -d /proc/sys/dev/cdrom ]; then
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echo 0 > /proc/sys/dev/cdrom/lock
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echo 1 > /proc/sys/dev/cdrom/autoeject
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fi
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udevpid=$(/bin/minips -C udevd -o pid=)
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[ "x${udevpid}" != "x" ] && /bin/kill -9 $udevpid 2>&1 >/dev/null
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#Yep, we're bailing out here. We don't need kinit.
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msg ":: Passing control to Archlinux Initscripts...Please Wait"
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/bin/umount /sys
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/bin/umount /proc
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/bin/umount /dev
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exec /bin/run-init -c /dev/console /real_root /sbin/init ${CMDLINE}
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}
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