unable to mount swap backed device

Cory Bajus cbajus at mts.net
Wed Apr 14 07:07:15 PDT 2004

On Tue, Apr 13, 2004 at 03:51:31PM +0200, Mipam wrote:
> Hi,
> I've been trying to mount a swap backed mfs, but it seems inpossible.
> On questions i've gotten no answer. Thing is, i am able to mount the stuff
> in 4-stable, but not in 5.2.1-p4.
> I added the line:
> /dev/amrd0s1b   /var/amavis   mfs   rw,-s=65536   0   0

On 5+, you need an entry like this in /etc/fstab:

md	/var/amavis	mfs	rw,-s64m	0	0

This will configure a swap backed 'md' disk and put a UFS
filesystem on it (see 'man mdmfs' for details).

> to /etc/fstab
> but i cant mount /var/amavis, in 4-stable it works fine.
> I have
> device            md              # Memory "disks"
> in the kernel config so i dont see why it doesnt work.
> Can anybody give any hints what's going on?
> When i try it manually i get:
> mount_mfs: bad device unit: amrd0s1b
> Bye,
> Reinoud.
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