[Xen-devel] udev

[Stephan Böni <boeni@xxxxxx>]

I have a problem mounting filesystems in a Xen3 domU. Often 
some device nodes are missing. Am i right, that normally udev 
creates the needed device nodes? It seams now, that udev in a 
domU does not work correct. Or has anyone a solution, why 
some devices are missing?
 
# ls -l /dev/hda*
brw-r-----  1 root disk 3,  1 Oct 18 11:19 /dev/hda1
brw-r-----  1 root disk 3, 11 Oct 18 11:19 /dev/hda11
brw-r-----  1 root disk 3, 14 Oct 18 11:19 /dev/hda14
brw-r-----  1 root disk 3,  8 Oct 18 11:19 /dev/hda8
 
Even if i try to create the missing device node with the 
mknod command, i cannot mount it.
 
# mknod /dev/hda3 b 3 3
# mount /dev/hda3
mount: /dev/hda3 is not a valid block device
 
Appending the needed devices in /etc/udev/static_devices.txt 
does not help.
 
Here is my domU configuration:
 
# cat inhouse | grep -v ^#
name    = "inhouse"
memory  = 2048
maxcpus = 1
kernel  = "/boot/vmlinuz-xen"
ramdisk = "/boot/initrd-xen"
vif  = [ 'mac=aa:cc:00:00:00:01, bridge=xenbr0' ]
hostname = name
disk = [ 'phy:xenvg/inhouse-root,hda1,w',
         'phy:xenvg/inhouse-cdb,hda2,w',
         'phy:xenvg/inhouse-comserver,hda3,w',
         'phy:xenvg/inhouse-docarchive,hda4,w',
         'phy:xenvg/inhouse-home,hda5,w',
         'phy:xenvg/inhouse-journal,hda6,w',
         'phy:xenvg/inhouse-mailserver,hda7,w',
         'phy:xenvg/inhouse-pos,hda8,w',
         'phy:xenvg/inhouse-pub,hda9,w',
         'phy:xenvg/inhouse-srv,hda10,w',
         'phy:xenvg/inhouse-tmp,hda11,w',
         'phy:xenvg/inhouse-transfer,hda12,w',
         'phy:xenvg/inhouse-usr,hda13,w',
         'phy:xenvg/inhouse-var,hda14,w',
         'phy:xenvg/inhouse-swap,hdb1,w',
         'phy:xenvg/susedvd,hdc1,r' ]
root    = "/dev/hda1"
extra   = "3"
 
I have no hda devices configured in my dom0.
 
Now i'm looking very puzzled, because on every restart of my 
domU there are other hda devices missing. Does anyone know 
how to solve this problem?
 
Stephan

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