Re: Creating /dev/dk* nodes so as to be persistent

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sun, Oct 20, 2013 at 09:03:52AM +0000, Michael van Elst wrote:
> apb%cequrux.com@localhost (Alan Barrett) writes:
> 
> >On Sat, 19 Oct 2013, Thomas Mueller wrote:
> >>> You can unmount the tmpfs file system:
> >>
> >>>         /sbin/umount /dev
> >>
> >>I tried that, but /dev/wouldn't umount because device was busy.
> 
> >Ah, I forgot about that.  "/sbin/umount -f /dev" might work, 
> >or you can do it in single user mode before the tmpfs /dev is 
> >mounted.
> 
> init calls /dev/MAKEDEV or /etc/MAKEDEV when /dev/console
> cannot be accessed. The script then creates a union mount.
> This happens before single-user.
> 
> But /sbin/umount -f /dev is successful, so a working sequence to
> recover the real /dev is:
> 
> boot single-user
> umount -f /dev
> fsck -p /
> mount /
> cd dev
> ./MAKEDEV

fsck -p /
mount /
umount -f /dev
cd dev
./MAKEDEV

is more likely to work. If /dev is empty on disk, fsck and mount won't work.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--