What we're going to end up with here in the installer is using grub-mount rather than mount, which guarantees a true read-only mount via GRUB's filesystem drivers plus FUSE. os-prober has already switched to this, and we'll switch the rest of the installer over as time permits.
What we're going to end up with here in the installer is using grub-mount rather than mount, which guarantees a true read-only mount via GRUB's filesystem drivers plus FUSE. os-prober has already switched to this, and we'll switch the rest of the installer over as time permits.