2015-12-08 21:18 GMT+01:00 Alexander Hall <alexan...@beard.se>: > On December 8, 2015 4:21:16 PM GMT+01:00, Otto Moerbeek <o...@drijf.net> > wrote: > >On Tue, Dec 08, 2015 at 03:03:14PM +0000, Tati Chevron wrote: > > > >> Currently, it's possible, (as root), to do something like: > >> # mount_mfs -s 1g swap / > >> > >> which succeeds, and mounts the empty filesystem as the root > >filesystem. > >> This makes the machine inoperable and requires a physical reset, > >without a clean shutdown, as no system binaries are available. > >> > >> Shouldn't we make mount_mfs error out in this case? > >Why? Unix does not prevent you from doing stupid things in general. > >Besides, a small variation (using -P) could be a proper and sane use > >of mount_mfs on / > > FWIW, I don't think so, as the mfs is populated after being mounted. > > > Yeah, mount_mfs will need /bin/pax, and if you give -P a block device, it will use /mnt in order to mount the wanted device on so pax can read the files out of it, so / and /mnt can't be mfs-mounted upon with -P.
-- May the most significant bit of your life be positive.
