* Problem with applying incremental btrfs-send
@ 2014-09-03 12:25 Harald Hoyer
0 siblings, 0 replies; only message in thread
From: Harald Hoyer @ 2014-09-03 12:25 UTC (permalink / raw)
To: linux-btrfs
Hi,
maybe someone can enlighten me. I am doing btrfs send & receive with full
snapshots and incremental updates.
It basically looks like this:
vol-0 and vol-1 are full subvolume image sends.
inc-1 and inc-2 are incremental images with:
# btrfs send -f inc-1 -p vol vol'
# btrfs send -f inc-2 -p vol' vol''
Case A:
vol---send----> vol-0 --receive--> avol --send&rec--> bvol
|-----send----> inc-1 --receive--> | | <--receive-- inc-1
vol' -send----> vol-1 avol' bvol'
|-----send----> inc-2 --receive--> | | <--receive-- inc-2
vol'' avol'' bvol''
which, works for bvol and which even works, if bvol is removed before inc-2 is
applied to bvol'.
Case B:
vol---send----> vol-0 --receive--> avol
|-----send----> inc-1 --receive--> |
vol' -send----> vol-1 avol' --send&rec--> bvol'
|-----send----> inc-2 --receive--> | | <--receive-- inc-2
vol'' avol'' ERROR
trying to apply inc-2 to bvol' fails with:
ERROR: could not find parent subvolume
What's the problem here?
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2014-09-03 12:25 Problem with applying incremental btrfs-send Harald Hoyer
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