Run do-release-upgrade to ubuntu 21.10
Looks like a simple task, but ending with many things to do...
do-release-upgrade, I went to sleep, then ssh connection dropped due to iMac auto sleep. The installation stopped at asking question of grub installation.
When I check the process, got a process similar to below one, which is still at pts/1, which means the process is still running at another virtual terminal.
/usr/bin/python3 /tmp/ubuntu-release-upgrader-qzt422az/focal --mode=server --frontend=DistUpgradeViewText
When I try to run
do-release-upgrade again, got following message.
# do-release-upgrade Checking for a new Ubuntu release No new release found.
Then I try to run
apt install screen, says apt is locked by process nnnn.
As suggested by others, I killed the process nnnn, and run following command, then the terminal change to installation virtual screen, and continued.
dpkg --configure -a
Error on grub-efi
Then got following error
# dpkg --configure -a Setting up grub-efi-amd64-signed (1.173+2.04-1ubuntu47) ... NTFS signature is missing. Failed to mount '/dev/sda1': Invalid argument The device '/dev/sda1' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? dpkg: error processing package grub-efi-amd64-signed (--configure): installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 12 Errors were encountered while processing: grub-efi-amd64-signed
As suggested by others, I ran following commands, which remove grub2 and install grub, then no error any more.
Note: do backup of
/etc/default/grub, and verify the contents. I didn't do this, caused more issues later
apt-get purge grub\* sudo apt-get install grub-efi sudo apt-get autoremove sudo update-grub
No zpool found during reboot
The system go into initramfs mode after reboot, looks like iSCSI devices not found.
Then I booted from CD again, and found that iSCSI configuration in
/etc/default/grub was missing.
After login to iSCSI, I mirror back the bpool and rpool back to local disk, and run following command to fix it.
update-initramfs -v -k $(uname -r) -c update-grub
Forgot waiting for resilvering finish
Forgot wait for zpool sync finish, the I rebooted the server.
Note: Some people said it is ok, but my case is NOT OK.
After perform zpool resync again, got following error with local partition CKSUM = 1.
One or more devices has experienced an unrecoverable error.
This was caused by reboot, just perform following command to clean the flag.
zpool clear rpool
This is an old issue, caused by network shutdown before iSCSI drive dismount. Run following command,
systemctl edit --full open-iscsi.service
Comment out the following line