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contrib: dracut: README.md

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Change zfs-snapshot-bootfs.service to zfs-rollback-bootfs.service in
cmdline point 4 of README.md.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com>
Closes #13609
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gregory-lee-bartholomew 2022-06-30 12:43:27 -05:00 committed by GitHub
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@ -38,7 +38,7 @@ For complete documentation, see `dracut.zfs(7)`.
after pool import but before the rootfs is mounted.
Failure to create the snapshot is noted, but booting continues.
4. `bootfs.rollback`, `bootfs.rollback=snapshot-name`: enables `zfs-snapshot-bootfs.service`,
4. `bootfs.rollback`, `bootfs.rollback=snapshot-name`: enables `zfs-rollback-bootfs.service`,
which `-Rf` rolls back to `$root_dataset@$(uname -r)` (or, in the second form, `$root_dataset@snapshot-name`)
after pool import but before the rootfs is mounted.
Failure to roll back will fall down to the rescue shell.