Hello,
Currently doveadm tool can't be used with read-only source locations because it's trying to create lock files.
I'd guess lock files shouldn't be necessary on a read-only media, because no one else is going to change anything while our doveadm instance is running anyway. Example:
doveadm import -u test@example.com maildir:/backup.0/domains/example.com/postmaster/Maildir restored ALL doveadm(test@example.com): Error: open(/backup.0/domains/example.com/postmaster/Maildir/.Trash/dovecot-uidlist.lock) failed: Read-only file system
Perhaps this should be something like doveadm backup -R flag, but in the opposite direction – i.e. we have a [full] backup command, but no [partial] restore command right now. Or am I missing something?
Best regards, Teodor