[Xen-users] Backend device not found!!.-- follow-up

["Lamia M.Youseff" <lyouseff@xxxxxxxxxxx>]

Hi again,

I also tested the brctl bridges on the host domain. The output of brctl 
is shown below too. I tried adding a new bridge  and configuring guest 
domain to use it, but with no success. I also tried to turn the STP on 
and off for xenbr0, and tested each case with xm create with no success 
either.
-bash-3.00# brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.feffffffffff       no             vif0.0
                                                                   peth0
Any input is appreciated,
Lamia Youseff


------------------

Hi All,
I am having a really hard time starting xen-domain with a vbd file. I 
always get the error
"Error: Device 0 (vif) could not be connected. Backend device not found."
I have been using xen 2.0 before, but now i am not able to start domains 
with xen 3.
I have no clue what could be the problem. I have done some testing, 
which is shown in the log below.
Any ideas/ help will be very appreciated,
Lamia Youseff

===================================
-bash-3.00# cat xen-domain.config
kernel = "/boot/vmlinuz-2.6-xenU"
memory = 128
name = "xen3-vm1"
nics = 1
ip = "10.1.1.13"
netmask=get_current_ipmask()
gateway=get_current_ipgw()
hostname="xen3-vm1"
disk = ['phy:vg2/vmdisk1,sda1,w']
root = "/dev/sda1 ro"
vif = ['mac=00:16:3E:F6:BB:B3, bridge=xenbr0' ]
===============================================
-bash-3.00# xm create xen-domain.config
Using config file "xen-domain.config".
Error: Device 0 (vif) could not be connected. Backend device not found.
================================================
-bash-3.00# xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      142     4 r-----   536.0
xen3-vm1                           5      128     1 --p---     0.0
===============================================
-bash-3.00# blockdev --getsize /dev/vg2/vmdisk1
2097152
===============================================
-bash-3.00# lvs
LV      VG   Attr   LSize Origin Snap%  Move Log Copy%
vmdisk1 vg2  -wi-ao 1.00G
-bash-3.00# lvscan
ACTIVE            '/dev/vg2/vmdisk1' [1.00 GB] inherit
=================================================
-bash-3.00# xm destroy 5
-bash-3.00# mount /dev/vg2/vmdisk1 /mnt/vmdisk/
-bash-3.00# cat /mnt/vmdisk/
.autofsck   etc/        lib64/      opt/        tmp/
bin/        home/       lost+found/ proc/       usr/
boot/       initrd/     media/      root/       var/
dev/        lib/        mnt/        sbin/
-bash-3.00# cat /mnt/vmdisk/etc/fstab
# This file is edited by fstab-sync - see 'man fstab-sync' for details
/dev/sda1             /                   ext2           
defaults            1  1
/boot         /boot               ext2           defaults            1  2
LABEL=/tmp          /tmp                ext2           
defaults            1  2
LABEL=/usr          /usr                ext2           
defaults            1  2
LABEL=/var          /var                ext2           
defaults            1  2



--
..........................................................
: Lamia M.Youseff          :  lyouseff@xxxxxxxxxxx       :
: Ph.D Candidate           :  www.cs.ucsb.edu/~lyouseff  :
: University of California,:                             :
: Santa Barbara (UCSB)     :                             :
:........................................................:
:                                                        :
: "There are no impossible dreams; there is just our     :
: limited perception of what is possible"                :
*:-.,_,.-:*'``'*:-.,_,.-:*'``'*:-.,_,.-:*'``'*:-.,_,.-:*'*




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