I also hit this today while running 'do-release-upgrade --dev' to upgrade a system from eoan to focal.
I was hesitant to kill the release upgrade and restart it, so I used a different workaround:
- opened a second terminal - Run 'ps -A fwww', notice the following line:
2629 ? Ssl 0:00 /usr/bin/snap wait system seed.loaded
- Kill that process
After doing this, the release upgrade continued.
I also hit this today while running 'do-release-upgrade --dev' to upgrade a system from eoan to focal.
I was hesitant to kill the release upgrade and restart it, so I used a different workaround:
- opened a second terminal
- Run 'ps -A fwww', notice the following line:
2629 ? Ssl 0:00 /usr/bin/snap wait system seed.loaded
- Kill that process
After doing this, the release upgrade continued.