[archiso] Add support to mount iso in loopback mode.
Add two parameters: img_dev=/dev/sdNM where /dev/sdNM is the device where .iso is located. img_loop=/path/to/arch.iso where /path/to/arch.iso is the full path of the .iso in the device img_dev. Original idea from Baurzhan Muftakhidinov. Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
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@ -10,6 +10,8 @@ install: all
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install -D -m 644 install/archiso $(DESTDIR)/lib/initcpio/install/archiso
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install -D -m 644 hooks/archiso_pxe_nbd $(DESTDIR)/lib/initcpio/hooks/archiso_pxe_nbd
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install -D -m 644 install/archiso_pxe_nbd $(DESTDIR)/lib/initcpio/install/archiso_pxe_nbd
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install -D -m 644 hooks/archiso_loop_mnt $(DESTDIR)/lib/initcpio/hooks/archiso_loop_mnt
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install -D -m 644 install/archiso_loop_mnt $(DESTDIR)/lib/initcpio/install/archiso_loop_mnt
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# install docs and examples
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install -d -m 755 $(DESTDIR)/usr/share/archiso/
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cp -r ../configs $(DESTDIR)/usr/share/archiso/configs
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33
archiso/hooks/archiso_loop_mnt
Normal file
33
archiso/hooks/archiso_loop_mnt
Normal file
@ -0,0 +1,33 @@
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# vim: set ft=sh:
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run_hook () {
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if [ -n "${img_dev}" ] && [ -n "${img_loop}" ]; then
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mount_handler="archiso_loop_mount_handler"
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fi
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}
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archiso_loop_mount_handler () {
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newroot="${1}"
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while [ ! -b "${img_dev}" ]; do
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sleep 1
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done
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msg "::: Setup a loop device from ${img_loop} located at device ${img_dev}"
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FSTYPE=$(blkid -o value -s TYPE -p ${img_dev} 2> /dev/null)
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if [ -n "${FSTYPE}" ]; then
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if mount -r -t "${FSTYPE}" ${img_dev} /img_dev > /dev/null 2>&1; then
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_dev_loop=$(losetup -f)
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losetup ${_dev_loop} /img_dev/${img_loop}
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fi
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fi
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archiso_mount_handler ${newroot}
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if [ "${copytoram}" = "y" ]; then
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msg "::: Deataching loop device ${_dev_loop}"
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losetup -d ${_dev_loop}
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msg "::: Unmounting ${img_dev}"
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umount ${img_dev}
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fi
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}
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18
archiso/install/archiso_loop_mnt
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18
archiso/install/archiso_loop_mnt
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@ -0,0 +1,18 @@
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# vim: set ft=sh:
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install ()
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{
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MODULES=""
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BINARIES=""
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FILES=""
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add_dir /img_dev
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SCRIPT="archiso_loop_mnt"
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}
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help ()
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{
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cat<<HELPEOF
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This hook loads the necessary modules for boot via loop device.
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HELPEOF
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}
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@ -2,5 +2,5 @@
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MODULES=""
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BINARIES=""
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FILES=""
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HOOKS="base udev memdisk archiso archiso_pxe_nbd pata scsi sata usb fw pcmcia filesystems usbinput"
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HOOKS="base udev memdisk archiso archiso_pxe_nbd archiso_loop_mnt pata scsi sata usb fw pcmcia filesystems usbinput"
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COMPRESSION="lzma"
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