RE: [Xen-users] Can't find root when start vm

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> 
> Hello.
> I can't start Virtual Machine, have the message:
>  Waiting for root file system ... done.
> Gave up waiting for root device.  Common problems
> .....
> ALERT!  /dev/xvda2 does not exist.  Dropping to a shell!
> 
> I have installed Xen 4 in a debian squeeze:
> # uname -a
> 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC 2011 x86_64
GNU/Linux
> 
> xen-hypervisor-4.0-amd64                4.0.1-2
The
> Xen Hypervisor on AMD64
> 
> I have created the virtual machine with this command:
> # xen-create-image --size=2Gb --swap=128Mb --dhcp --dist=stable
> --dir=/home/xen --hostname=debian
> 
> My debian.cfg is:
> kernel      = '/boot/vmlinuz-2.6.32-5-xen-amd64'
> ramdisk     = '/boot/initrd.img-2.6.32-5-xen-amd64'
> vcpus       = '1'
> memory      = '128'
> root        = '/dev/xvda2 ro'
> disk        = [
>                   'file:/home/xen/domains/debian2/disk.img,xvda2,w',
>                   'file:/home/xen/domains/debian2/swap.img,xvda1,w',
>               ]
> on_poweroff = 'destroy'
> on_reboot   = 'restart'
> on_crash    = 'restart'
> 
> In my Server the filesystem is /dev/sda1.
> I have tried with:
> root        = '/dev/xvda1 ro'
> root        = '/dev/sda1 ro'
> root        = '/dev/sda2 ro'
> 
> And the same problem
> 
> In the /dev vm I have:
> (initramfs) ls /dev
> char console core cpu_dma_latency fd full hvc0 hvc1 hvc2 hvc3 hvc4
hvc5
> hvc6 hvc7 input kmsg mapper mem network_latency network_throughput
null
> port psaux ptmx pts random snapshot ttyx urandom vcs vcs1 vcsa vcsa1
> vga_arbiter xen zero
> 
> I have tried with vcs vcs1 vcsa vcsa1 but have the error:
> mount: mounting /dev/vcs1 on /root failed: No such file or directory
> 
> Any idea? I'm making wrong something?
> 
> A lot of thanks!
> 

Does /dev/xvda1 exist? Is the frontend block device driver compiled as a
module?

James

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