Public bug reported:
https://github.com/openzfs/zfs/issues/12462
Ubuntu 20.04.2 LTS
Kernel: 5.11.0-25-generic #27~20.04.1-Ubuntu
zfs-0.8.3-1ubuntu12.12
zfs-kmod-2.0.2-1ubuntu5
Trying to run zfs send | receive and getting an error:
# zfs send 'rpool/home'@'autosnap_2020-08-01_00:59:01_monthly' | zfs receive
-s -F 'nas/rpool_backup/home'
cannot receive: failed to read from stream
cannot receive new filesystem stream: dataset does not exist
This used to work before the recent Ubuntu kernel update from 5.8 to
5.11
Ubuntu updates that broke it:
Upgrade: linux-headers-generic-hwe-20.04:amd64 (5.8.0.63.71~20.04.45,
5.11.0.25.27~20.04.10), linux-
image-generic-hwe-20.04:amd64 (5.8.0.63.71~20.04.45, 5.11.0.25.27~20.04.10),
linux-generic-hwe-20.04
:amd64 (5.8.0.63.71~20.04.45, 5.11.0.25.27~20.04.10)
Sending the zfs send part to a file works, but then sending the file to
zfs receive also fails. The dump file size seems reasonable but the
contents may not be correct.
** Affects: zfs-linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: zfs zfs-kmod
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https://bugs.launchpad.net/bugs/1939177
Title:
Ubuntu 20.04.2 LTS kernel 5.11.0-25 zfs send | receive broken
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