May 3 15:37:28 in-target: grub-common is already the newest version (2.02~beta2-36ubuntu3.9).
May 3 15:37:28 in-target: 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
May 3 15:37:28 main-menu[422]: (process:4764): grub-probe: error: failed to get canonical path of `rpool/ROOT/linux'.
May 3 15:37:28 main-menu[422]: (process:4764): grub-probe: error: failed to get canonical path of `rpool/ROOT/linux'.
May 3 15:37:28 main-menu[422]: WARNING **: Configuring 'grub-installer' failed with error code 1
May 3 15:37:28 main-menu[422]: WARNING **: Menu item 'grub-installer' failed.
May 3 15:37:40 main-menu[422]: INFO: Falling back to the package description for brltty-udeb
^C
FWIW: Found another case, where grub2 fails:
May 3 15:37:28 in-target: grub-common is already the newest version (2.02~beta2- 36ubuntu3. 9).
May 3 15:37:28 in-target: 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
May 3 15:37:28 main-menu[422]: (process:4764): grub-probe: error: failed to get canonical path of `rpool/ROOT/linux'.
May 3 15:37:28 main-menu[422]: (process:4764): grub-probe: error: failed to get canonical path of `rpool/ROOT/linux'.
May 3 15:37:28 main-menu[422]: WARNING **: Configuring 'grub-installer' failed with error code 1
May 3 15:37:28 main-menu[422]: WARNING **: Menu item 'grub-installer' failed.
May 3 15:37:40 main-menu[422]: INFO: Falling back to the package description for brltty-udeb
^C
~ # zfs list linux/home 19K 760G 19K legacy linux/var 963M 760G 963M legacy
NAME USED AVAIL REFER MOUNTPOINT
rpool 163G 760G 19K none
rpool/ROOT 2.55G 760G 19K none
rpool/ROOT/linux 2.55G 760G 1.61G /target
rpool/ROOT/
rpool/ROOT/
rpool/VARSHARE 19K 760G 19K /target/var/share
rpool/dump 64.0G 824G 8K -
rpool/swap 96.0G 856G 8K -
~ # zpool status
pool: rpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
nvme0n1p2 ONLINE 0 0 0
~ # zpool status -P
pool: rpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
/dev/nvme0n1p2 ONLINE 0 0 0