Mounting cd9660 multiple times gives EBUSY [Was: unionfs a
little improvement]
Ed Schouten
ed at 80386.nl
Wed Aug 18 15:20:15 UTC 2010
* Pawel Jakub Dawidek <pjd at FreeBSD.org> wrote:
> What you are trying to do here is to mount /dev/iso9660/freebsd for the
> second time? This is not supported. The check is there to prevent doing
> this, as it will panic on you when you try to unmount first mount (not
> really a problem in your case, as the first mount is /, so you probably
> don't want to unmount it, but it is a problem in general).
>
> You should be able to reproduce the panic with your patch applied by
> doing the following:
>
> # mount -t cd9660 /dev/iso9660/freebsd /mnt0
> # mount -t cd9660 /dev/iso9660/freebsd /mnt1
> # umount /mnt0
Ah, I see. Well, I changed my setup to use an md root now. Works quite
nicely. Screenshot:
http://80386.nl/pub/livecd.png
Thanks for the explanation!
--
Ed Schouten <ed at 80386.nl>
WWW: http://80386.nl/
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