On 03/05/2020 06:05, Graham Perrin wrote:
After reverting from OpenZFS to ZFS, I was able to destroy two of the
boot environments that previously (below, 1st May, OpenZFS) could not
be destroyed.
I'm left with at least one BE 'r360237c' that can not be destroyed. Is
it ever normal to find a snapshot described as '-'?
root@momh167-gjp4-8570p:~ # kldstat | grep zfs
2 1 0xffffffff82109000 3a8b40 zfs.ko
root@momh167-gjp4-8570p:~ # date
Sun May 3 05:59:06 BST 2020
…
root@momh167-gjp4-8570p:~ # beadm destroy r360237c
Are you sure you want to destroy 'r360237c'?
This action cannot be undone (y/[n]): y
Boot environment 'r360237c' was created from existing snapshot
Destroy '-' snapshot? (y/[n]): y
cannot destroy 'copperbowl/ROOT/r360237c': filesystem has dependent
clones
use '-R' to destroy the following datasets:
copperbowl/ROOT/r360237e@2020-05-01-17:58:33
copperbowl/ROOT/r360237e
copperbowl/ROOT/r357746h
copperbowl/ROOT/Waterfox
…
I temporarily activated (but did not boot from) an older environment BE
r357746h, then created and activated r360237f.
Then the previously indestructible r360237c was destroyed successfully:
----
root@momh167-gjp4-8570p:~ # beadm list -as
BE/Dataset/Snapshot Active Mountpoint Space
Created
Waterfox
copperbowl/ROOT/Waterfox - - 314.0M
2020-03-10 18:24
r360237f@2020-03-20-06:19:45 - - 1.0G 2020-03-20
06:19
r357746h
copperbowl/ROOT/r357746h - - 3.4M 2020-04-08
09:28
r360237f@2020-04-09-17:59:32 - - 1.1G 2020-04-09
17:59
r360237c
copperbowl/ROOT/r360237c - - 17.0M
2020-04-29 13:24
r360237f@2020-04-29-13:24:52 - - 229.0M
2020-04-29 13:24
r360237e
copperbowl/ROOT/r360237e N / 680.0K
2020-05-01 17:58
r360237f@2020-05-03-18:30:25 - - 440.0K
2020-05-03 18:30
r360237f
copperbowl/ROOT/r360237f@2020-03-20-06:19:45 - - 1.0G 2020-03-20
06:19
copperbowl/ROOT/r360237f@2020-04-09-17:59:32 - - 1.1G 2020-04-09
17:59
copperbowl/ROOT/r360237f@2020-04-29-13:24:52 - - 229.0M
2020-04-29 13:24
copperbowl/ROOT/r360237f@2020-05-01-17:58:33 - - 162.0M
2020-05-01 17:58
copperbowl/ROOT/r360237f R - 81.7G
2020-05-03 18:30
copperbowl/ROOT/r360237f@2020-05-03-18:30:25 - - 440.0K
2020-05-03 18:30
root@momh167-gjp4-8570p:~ # date ; uname -v ; uptime
Sun May 3 18:32:31 BST 2020
FreeBSD 13.0-CURRENT #54 r360237: Fri Apr 24 09:10:37 BST 2020
root@momh167-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG
6:32PM up 12:54, 5 users, load averages: 0.48, 0.44, 0.41
root@momh167-gjp4-8570p:~ # kldstat | grep zfs
2 1 0xffffffff82109000 3a8b40 zfs.ko
root@momh167-gjp4-8570p:~ # beadm destroy r360237c
Are you sure you want to destroy 'r360237c'?
This action cannot be undone (y/[n]): y
Destroyed successfully
root@momh167-gjp4-8570p:~ # zfs destroy
copperbowl/ROOT/r360237f@2020-03-20-06:19:45
cannot destroy 'copperbowl/ROOT/r360237f@2020-03-20-06:19:45': snapshot
has dependent clones
use '-R' to destroy the following datasets:
copperbowl/ROOT/Waterfox
root@momh167-gjp4-8570p:~ # zfs destroy
copperbowl/ROOT/r360237f@2020-04-09-17:59:32
cannot destroy 'copperbowl/ROOT/r360237f@2020-04-09-17:59:32': snapshot
has dependent clones
use '-R' to destroy the following datasets:
copperbowl/ROOT/r357746h
root@momh167-gjp4-8570p:~ # zfs destroy
copperbowl/ROOT/r360237f@2020-05-01-17:58:33
root@momh167-gjp4-8570p:~ # beadm list -as
BE/Dataset/Snapshot Active Mountpoint Space
Created
Waterfox
copperbowl/ROOT/Waterfox - - 314.0M
2020-03-10 18:24
r360237f@2020-03-20-06:19:45 - - 1.0G 2020-03-20
06:19
r357746h
copperbowl/ROOT/r357746h - - 3.4M 2020-04-08
09:28
r360237f@2020-04-09-17:59:32 - - 1.1G 2020-04-09
17:59
r360237e
copperbowl/ROOT/r360237e N / 756.0K
2020-05-01 17:58
r360237f@2020-05-03-18:30:25 - - 440.0K
2020-05-03 18:30
r360237f
copperbowl/ROOT/r360237f@2020-03-20-06:19:45 - - 1.0G 2020-03-20
06:19
copperbowl/ROOT/r360237f@2020-04-09-17:59:32 - - 1.1G 2020-04-09
17:59
copperbowl/ROOT/r360237f R - 80.9G
2020-05-03 18:30
copperbowl/ROOT/r360237f@2020-05-03-18:30:25 - - 440.0K
2020-05-03 18:30
root@momh167-gjp4-8570p:~ # bectl list -as
BE/Dataset/Snapshot Active Mountpoint Space
Created
Waterfox
copperbowl/ROOT/Waterfox - - 314M
2020-03-10 18:24
r357746h
copperbowl/ROOT/r357746h - - 3.44M
2020-04-08 09:28
r360237e
copperbowl/ROOT/r360237e N / 764K
2020-05-01 17:58
r360237f
copperbowl/ROOT/r360237f R - 80.9G
2020-05-03 18:30
r360237f@2020-03-20-06:19:45 - - 1.02G
2020-03-20 06:19
r360237f@2020-04-09-17:59:32 - - 1.15G
2020-04-09 17:59
r360237f@2020-05-03-18:30:25 - - 440K
2020-05-03 18:30
root@momh167-gjp4-8570p:~ #
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