On Fri, Nov 18, 2016 at 02:38:25AM +0200, Marcus Sundman wrote: > The FAQ says that "the best solution for small devices (under about > 16 GB) is to reformat the FS with the --mixed option to mkfs.btrfs". > > OK. Does anyone have any good suggestions for doing that with an > existing / partition (which has special files and whatnot)? > > I assume a backup-restore cycle is needed, but with which program(s)?
- If you don't have (or don't care about) any snapshots, then
- if you can mount both the old and the new FS at the same time
- mv
- else, if you want to replace the old FS with the new
- tar to a file elsewhere, and untar later
- else, if you care about the snapshots
- if you don't care about continuing btrfs send/receive backups to
somewhere else
- btrfs send/receive with -c (*)
- if you want to continue using btrfs send -p incremental backups after
the migration
- cry, because you can't
(*) For subvols S1, S2, S3, ...: btrfs send S1; btrfs send -c S1 S2;
btrfs send -c S1 -c S2 S3; btrfs send -c S1 -c S2 -c S3 S4; etc...
Hugo.
--
Hugo Mills | Great films about cricket: The Umpire Strikes Back
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