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xen-users
Re: [Xen-users] Backend device not found!!.
Hi
I got same message in my tests. The reason was, that the bridge was missing or
actually it had wrong name.
You should define the bridge name in the config file
like vif = [ 'bridge=xenwlan' ]. You can look what you have in you system with:
brctl show.
I'm only using bridged environment so I'm not sure about routing and NAT.
-- Timo
----- Lamia M.Youseff <lyouseff@xxxxxxxxxxx> kirjoitti:
> 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
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