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-rw-r--r--archiso/initcpio/hooks/archiso10
-rw-r--r--docs/README.bootparams14
2 files changed, 13 insertions, 11 deletions
diff --git a/archiso/initcpio/hooks/archiso b/archiso/initcpio/hooks/archiso
index 9d38f07..fcfe820 100644
--- a/archiso/initcpio/hooks/archiso
+++ b/archiso/initcpio/hooks/archiso
@@ -17,7 +17,7 @@ _mnt_dmsnapshot() {
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."
- truncate -s "${cowfile_size}" "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
+ truncate -s "${cow_spacesize}" "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
fi
else
if [[ -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" ]]; then
@@ -25,7 +25,7 @@ _mnt_dmsnapshot() {
rm -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
fi
msg ":: Creating '/run/archiso/cowspace/${cow_directory}/${img_name}.cow' as non-persistent."
- truncate -s "${cowfile_size}" "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
+ truncate -s "${cow_spacesize}" "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
fi
rw_dev=$(losetup --find --show "/run/archiso/cowspace/${cow_directory}/${img_name}.cow")
@@ -110,7 +110,7 @@ run_hook() {
[[ -z "${archisobasedir}" ]] && archisobasedir="arch"
[[ -z "${dm_snap_prefix}" ]] && dm_snap_prefix="arch"
[[ -z "${archisodevice}" ]] && archisodevice="/dev/disk/by-label/${archisolabel}"
- [[ -z "${cowfile_size}" ]] && cowfile_size="256M"
+ [[ -z "${cow_spacesize}" ]] && cow_spacesize="256M"
if [[ -n "${cow_label}" ]]; then
cow_device="/dev/disk/by-label/${cow_label}"
@@ -168,9 +168,9 @@ archiso_mount_handler() {
echo $(readlink -f ${cow_device}) >> /run/archiso/used_block_devices
mount -o remount,rw "/run/archiso/cowspace"
else
- msg ":: Mounting /run/archiso/cowspace (tmpfs) filesystem, size=${cowfile_size}..."
+ msg ":: Mounting /run/archiso/cowspace (tmpfs) filesystem, size=${cow_spacesize}..."
mkdir -p /run/archiso/cowspace
- mount -t tmpfs -o "size=${cowfile_size}",mode=0755 cowspace /run/archiso/cowspace
+ mount -t tmpfs -o "size=${cow_spacesize}",mode=0755 cowspace /run/archiso/cowspace
fi
mkdir -p "/run/archiso/cowspace/${cow_directory}"
diff --git a/docs/README.bootparams b/docs/README.bootparams
index 4c324f2..356375d 100644
--- a/docs/README.bootparams
+++ b/docs/README.bootparams
@@ -30,17 +30,18 @@ INDEX
performs a self-test of all files inside ${install_dir},
and continue booting if ok.
Default: (unset)
-* cow_label= Set the filesystem label where COW (dm-snapshot)
- file must be stored.
+* cow_label= Set the filesystem label where COW file (for dm-snapshot)
+ or upperdir/workdir files (for overlayfs) must be stored.
Default: (unset)
-* cow_device= Set the device node where COW (dm-snapshot) file
- must be stored.
+* cow_device= Like cow_label= but using device node.
Default: (unset) or "/dev/disk/by-label/${cow_label}"
* cow_directory= Set a directory inside ${cow_device}.
Default: "/persistent_${archisolabel}/${arch}"
* cow_persistent= Set if snapshot is persistent "P" or non-persistent "N".
+ Only used for dm-snapshot mode, ignored for overlayfs.
Default: "N" (if no ${cow_device} is used) otherwise "P".
-* cowfile_size= Set the size for COW file (dm-snapshot).
+* cow_spacesize= Set the size for COW space (tmpfs). Valid for both
+ dm-snapshot and overlayfs mode.
The argument is an integer and optional unit.
Units are M,G (powers of 1024).
Default: "256M"
@@ -52,7 +53,8 @@ INDEX
Size is in bytes (suffix with "k", "m" and "g") or
in percentage of available RAM.
Default: "75%"
-* dm_snap_prefix= Set a prefix for device-mapper snapshot node names.
+* dm_snap_prefix= Set a prefix for dm-snapshot node names.
+ Only used for dm-snapshot mode, ignored for overlayfs.
Default: "arch"
* arch= Force an architecture type (i686 | x86_64).
Do not set it for normal operations.