mirror_zfs/contrib/initramfs/conf-hooks.d/zfs

# Force the inclusion of Busybox in the initramfs.
BUSYBOX=y

# Setup the keyboard mapping so passphrases can be entered correctly.
KEYMAP=y

# Require the plymouth script to guarantee working video for the passphrase
# prompting.
FRAMEBUFFER=y
Initramfs scripts for ZoL. * Supports booting of a ZFS snapshot. Do this by cloning the snapshot into a dataset. If this, the resulting dataset, already exists, destroy it. Then mount it on root. * If snapshot does not exist, use base dataset (the part before '@') as boot filesystem instead. * If no snapshot is specified on the 'root=' kernel command line, but there is an '@', then get a list of snapshots below that filesystem and ask the user which to use. * Clone with 'mountpoint=none' and 'canmount=noauto' - we mount manually and explicitly. * For sub-filesystems, that doesn't have a mountpoint property set, we use the 'org.zol:mountpoint' to keep track of it's mountpoint. * Allow rollback of snapshots instead of clone it and boot from the clone. * Allow mounting a root- and subfs with mountpoint=legacy set * Allow mounting a filesystem which is using nativ encryption. * Support all currently used kernel command line arguments All the different distributions have their own standard on what to specify on the kernel command line to boot of a ZFS filesystem. * Extra options: * zfsdebug=(on,yes,1) Show extra debugging information * zfsforce=(on,yes,1) Force import the pool * rollback=(on,yes,1) Rollback (instead of clone) the snapshot * Only try to import pool if it haven't already been imported * This will negate the need to force import a pool that have not been exported cleanly. * Support exclusion of pools to import by setting ZFS_POOL_EXCEPTIONS in /etc/default/zfs. * Support additional configuration variable ZFS_INITRD_ADDITIONAL_DATASETS to mount additional filesystems not located under your root dataset. * Include /etc/modprobe.d/{zfs,spl}.conf in the initrd if it/they exist. * Include the udev rule to use by-vdev for pool imports. * Include the /etc/default/zfs file to the initrd. * Only try /dev/disk/by-* in the initrd if USE_DISK_BY_ID is set. * Use /dev/disk/by-vdev before anything. * Add /dev as a last ditch attempt. * Fallback to using the cache file if that exist if nothing else worked. * Use /sbin/modprobe instead of built-in (BusyBox) modprobe. This gets rid of the message "modprobe: can't load module zcommon". Thanx to pcoultha for finding this. Signed-off-by: Turbo Fredriksson <turbo@bayour.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2116 Closes #2114 2014-01-30 20:26:48 +04:00			`# Force the inclusion of Busybox in the initramfs.`
			`BUSYBOX=y`
initramfs: setup keymapping and video for prompts From Steve Langasek <steve.langasek@canonical.com>: > The poorly-named 'FRAMEBUFFER' option in initramfs-tools controls > whether the console_setup and plymouth scripts are included and used > in the initramfs. These are required for any initramfs which will be > prompting for user input: console_setup because without it the user's > configured keymap will not be set up, and plymouth because you are > not guaranteed to have working video output in the initramfs without > it (e.g. some nvidia+UEFI configurations with the default GRUB > behavior). > The zfs initramfs script may need to prompt the user for passphrases > for encrypted zfs datasets, and we don't know definitively whether > this is the case or not at the time the initramfs is constructed (and > it's difficult to dynamically populate initramfs config variables > anyway), therefore the zfs-initramfs package should just set > FRAMEBUFFER=yes in a conf snippet the same way that the > cryptsetup-initramfs package does > (/usr/share/initramfs-tools/conf-hooks.d/cryptsetup). https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1856408 Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl> Signed-off-by: Steve Langasek <steve.langasek@canonical.com> Signed-off-by: Richard Laager <rlaager@wiktel.com> Closes #9723 2019-12-17 03:54:51 +03:00
			`# Setup the keyboard mapping so passphrases can be entered correctly.`
			`KEYMAP=y`

			`# Require the plymouth script to guarantee working video for the passphrase`
			`# prompting.`
			`FRAMEBUFFER=y`