Comment 1 for bug 1926137

Oh I think what has happened here is that the sd card you are installing to has a partition with a filesystem with label 'writable' (maybe it has ubuntu core on it, or maybe it was used to hold the installer ISO when installing another system).

This causes casper to create directories on this file system and then bind-mount as /var/log and /var/crash. Then when curtin tries to delete this partition, the kernel understandably gets upset.

I'm not sure what we should do about this :(