Re: [uml-user] problem to activate swap

[Blaisorblade <bla...@ya...>]

On Friday 28 April 2006 17:33, Johan Arens wrote:
> Hi I'm trying to activate the swap on my umls.
>
> My start commands are ubd0=3Droot_fs ubd1=3Dswap_fs
> My UML kernel is 2.6.16.9-bs2, downloaded from
> http://www.user-mode-linux.org/~blaisorblade/binaries/
>
> My system boots normally, I can see the first disk mounted as /dev/ubda.

=46rom the mount output? That's the content of /etc/mtab, please compare=20
with /proc/mounts.

> First question, if I do a ls -l /dev/ubd* it doesn't find any devices,
> how is it working ?

There's a little chance you have still the /dev/ubd/ folder.

> To mount the swap area, swapon /dev/ubdb /dev/ubd/1 do not work
> (device not found),

It's possible that since the kernel mounts the root_fs, it's working anyway.
What you likely need to do is to recreate the devices you need like:
mknod /dev/ubd0 b 98 0
mknod /dev/ubd1 b 98 16
mknod /dev/ubd2 b 98 32
=2E..
and so on (till ubd7) and/or (depending on your taste)
mknod /dev/ubda b 98 0
mknod /dev/ubdb b 98 16
mknod /dev/ubdc b 98 32
=2E..
this can be scripted, but it seems I lost the script, however it's like
for ((i=3D0; i < 8; i++)); do
	mknod /dev/ubd$i b 98 $[16*$i]
done
the second can be done too (with tr '0-9' 'a-i' to convert $i to the right=
=20
letter) but I'm too hurried to do it.

Bye
=2D-=20
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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