Attempting to update to OS v7. Shut down the VM first and restarted it fresh. Update fails and I get the “Unknown error, see supervisor” message.
Supervisor log says:
22-04-18 18:08:11 ERROR (MainThread) [supervisor.os.manager] Home Assistant Operating System update failed with: Installation error: Failed updating slot kernel.1: failed to mount slot: failed to run mount: Child process exited with code 32
Not sure where to go from here.
I too have this problem. Identical supervisor log message, updating from 4.16 to 7.6.
Same issue.
Same issue, 6.0 → 7.6
Anyone find a solution yet?
Note that CLI approach of ha os upgrade fails with same error. Restarting supervisor does not help.
A workaround that worked for me is - do the OS update in two steps: First to 6.6 and then to latest.
ha os update --version=6.6
and then
ha os update
Hat tip @agners.
Upgrading from 4.16 to 7.6 was successful, with intermediate upgrade steps.
The process that worked was upgrade to 4.20, then 5.13, then 6.6, then 7.6.