ISO/archiso/hooks/archiso_loop_mnt
Gerardo Exequiel Pozzi 5123b25aa1 [archiso] Add /run/archiso/used_block_devices
This list includes block devices of:
* Boot medium [archisodevice] (only if no copytoram= is used)
* Loop medium [img_dev] (only if no copytoram= is used)
* COW space [cowdevice] (only if cowdevice= is used (no tmpfs is used))
* Loop devices used for SquashFS images.
* Loop devices used for device-mapper devices (two per each dm-device, one RO{*.fs} and one RW{*.cow})

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
2012-02-22 23:46:14 -03:00

35 lines
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# vim: set ft=sh:
run_hook () {
[[ -n "${img_label}" ]] && img_dev="/dev/disk/by-label/${img_label}"
if [[ -n "${img_dev}" && -n "${img_loop}" ]]; then
mount_handler="archiso_loop_mount_handler"
fi
}
archiso_loop_mount_handler () {
newroot="${1}"
local _dev_loop
msg ":: Setup a loop device from ${img_loop} located at device ${img_dev}"
_mnt_dev "${img_dev}" "/run/archiso/img_dev" "-r"
if [[ "${copytoram}" != "y" ]]; then
echo $(readlink -f ${img_dev}) >> /run/archiso/used_block_devices
fi
if ! _dev_loop=$(losetup --find --show --read-only "/run/archiso/img_dev/${img_loop}"); then
echo "ERROR: Setting loopback device for file '/run/archiso/img_dev/${img_loop}'"
launch_interactive_shell
fi
archiso_mount_handler ${newroot}
if [[ "${copytoram}" == "y" ]]; then
losetup -d ${_dev_loop}
umount /run/archiso/img_dev
else
echo ${_dev_loop} > /run/archiso/img_dev_loop
fi
}