diff options
| -rw-r--r-- | README | 5 | ||||
| -rw-r--r-- | archiso/initcpio/hooks/archiso | 10 |
2 files changed, 13 insertions, 2 deletions
@@ -65,6 +65,11 @@ INDEX Size is in bytes (suffix with "k", "m" and "g") or in percentage of available RAM. Default: "75%" +* cowfile_size= Set the size for all files to be used as COW (dm-snapshot), + in percentage of the ro-device.fs file. This is mostly useful + when cow_device= is used and filesystem does not support + sparse files (ie VFAT). + Default: "100%" * copytoram_size= Set the size of tmpfs. This space is used for copy of all SquashFS images used, if copytoram=y. Size is in bytes (suffix with "k", "m" and "g") or diff --git a/archiso/initcpio/hooks/archiso b/archiso/initcpio/hooks/archiso index 5b94743..491ed2f 100644 --- a/archiso/initcpio/hooks/archiso +++ b/archiso/initcpio/hooks/archiso @@ -11,13 +11,14 @@ _mnt_fs() { ro_dev=$(losetup --find --show --read-only "${img}") echo ${ro_dev} >> /run/archiso/used_block_devices ro_dev_size=$(blockdev --getsz ${ro_dev}) + rw_dev_size=$((ro_dev_size*cowfile_size/100)) if [[ "${cow_persistent}" == "P" ]]; then if [[ -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" ]]; then msg ":: Found '/run/archiso/cowspace/${cow_directory}/${img_name}.cow', using as persistent." else msg ":: Creating '/run/archiso/cowspace/${cow_directory}/${img_name}.cow' as persistent." - dd of="/run/archiso/cowspace/${cow_directory}/${img_name}.cow" count=0 seek=${ro_dev_size} &> /dev/null + dd of="/run/archiso/cowspace/${cow_directory}/${img_name}.cow" count=0 seek=${rw_dev_size} &> /dev/null fi else if [[ -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" ]]; then @@ -25,7 +26,7 @@ _mnt_fs() { rm -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" fi msg ":: Creating '/run/archiso/cowspace/${cow_directory}/${img_name}.cow' as non-persistent." - dd of="/run/archiso/cowspace/${cow_directory}/${img_name}.cow" count=0 seek=${ro_dev_size} &> /dev/null + dd of="/run/archiso/cowspace/${cow_directory}/${img_name}.cow" count=0 seek=${rw_dev_size} &> /dev/null fi rw_dev=$(losetup --find --show "/run/archiso/cowspace/${cow_directory}/${img_name}.cow") @@ -101,6 +102,11 @@ run_hook() { [[ -z "${archisobasedir}" ]] && archisobasedir="arch" [[ -z "${dm_snap_prefix}" ]] && dm_snap_prefix="arch" [[ -z "${archisodevice}" ]] && archisodevice="/dev/disk/by-label/${archisolabel}" + if [[ -z "${cowfile_size}" ]]; then + cowfile_size="100" + else + cowfile_size=${cowfile_size/%} + fi if [[ -z "${aitab}" ]]; then aitab="/run/archiso/bootmnt/${archisobasedir}/aitab" |