When I tried to restore an earlier snapshot, I was confronted with this exact error message:

No key available with this passphrase.
Command: /sbin/zfs clone -o canmount=noauto -m com.ubuntu.zsys:bootfs=yes -o mountpoint=/ rpool/ROOT/ubuntu_2ips66@autozsys_o8o5p5 rpool/ROOT/ubuntu_
Message: cannot create 'rpool/ROOT/ubuntu_': dataset already exists
Error: 1
Failed to clone snapshot.
Make sure that the any problems are corrected and the make sure that the dataset 'rpool/ROOT/ubuntu_' exists and is bootable

I tried nothing and I'm all out of ideas. Do I have have to rename this dataset with zfs? Here is the output of zfs list if that is of any help:

NAME USED AVAIL REFER MOUNTPOINT
bpool 1,04G 730M 96K /boot
bpool/BOOT 1,03G 730M 96K none
bpool/BOOT/ubuntu_2ips66 1,03G 730M 217M /boot
rpool 169G 745G 192K /
rpool/ROOT 26,4G 745G 192K none
rpool/ROOT/ubuntu_ 12,1G 745G 7,07G /
rpool/ROOT/ubuntu_2ips66 14,3G 745G 7,10G /
rpool/ROOT/ubuntu_2ips66/srv 352K 745G 192K /srv
rpool/ROOT/ubuntu_2ips66/usr 9,49G 745G 192K /usr
rpool/ROOT/ubuntu_2ips66/usr/local 9,49G 745G 9,47G /usr/local
rpool/ROOT/ubuntu_2ips66/var 4,66G 745G 192K /var
rpool/ROOT/ubuntu_2ips66/var/games 192K 745G 192K /var/games
rpool/ROOT/ubuntu_2ips66/var/lib 4,19G 745G 3,13G /var/lib
rpool/ROOT/ubuntu_2ips66/var/lib/AccountsService 1,84M 745G 216K /var/lib/AccountsService
rpool/ROOT/ubuntu_2ips66/var/lib/NetworkManager 4,04M 745G 264K /var/lib/NetworkManager
rpool/ROOT/ubuntu_2ips66/var/lib/apt 95,8M 745G 78,8M /var/lib/apt
rpool/ROOT/ubuntu_2ips66/var/lib/dpkg 206M 745G 63,9M /var/lib/dpkg
rpool/ROOT/ubuntu_2ips66/var/log 476M 745G 279M /var/log
rpool/ROOT/ubuntu_2ips66/var/mail 192K 745G 192K /var/mail
rpool/ROOT/ubuntu_2ips66/var/snap 2,18M 745G 784K /var/snap
rpool/ROOT/ubuntu_2ips66/var/spool 5,57M 745G 2,67M /var/spool
rpool/ROOT/ubuntu_2ips66/var/www 192K 745G 192K /var/www
rpool/USERDATA 142G 745G 192K /
rpool/USERDATA/root_kyouli 7,08M 745G 448K /root
rpool/USERDATA/<user>_kyouli 142G 745G 133G /home/<user>
rpool/keystore 518M 746G 48,1M -

1 Answer

I think you are experiencing this bug. Rollbacks don't work because of that bug, at least for some people. A fix is in the works as I understand it.

I think you can remove the dataset without suffix (ubuntu_) with zfs destroy. At least it worked for me. And I guess we need to wait for the fix.

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