new instance ERROR_down

[Artur]

Hello,

This is my first setup of (self compiled) Ganeti 2.6.2 and Wheezy. I
tried to follow all the installation instruction.
While adding my first instance on my single node cluster the instance is
always ERROR_down and I can't start it.
i also tried to run burnin with following command but it always fails on
instance reboot test :
/usr/local/lib/ganeti/tools/burnin -o debootstrap+default -t plain
--disk-size 10G --mem-size 10G -v instance.name
I suppose it has something to do with GRUB or disk device name but i
don't how to fix it.
On instance startup i can see console for few seconds before it panics.
Below is the console log. What information can i provide to get some help ?

[ 0.424569] List of all partitions:
[ 0.424573] No filesystem could mount root, tried:
[ 0.424579] Kernel panic - not syncing: VFS: Unable to mount root fs
on unknown-block(0,0)
[ 0.424586] Pid: 1, comm: swapper/0 Not tainted 3.2.0-4-amd64 #1
Debian 3.2.35-2
[ 0.424591] Call Trace:
[ 0.424598] [<ffffffff813467bc>] ? panic+0x95/0x1a5
[ 0.424605] [<ffffffff816abf7d>] ? mount_block_root+0x24e/0x27a
[ 0.424611] [<ffffffff81002930>] ? name_to_dev_t+0x7c9/0xe99
[ 0.424617] [<ffffffff816ac12b>] ? prepare_namespace+0x133/0x169
[ 0.424623] [<ffffffff816abc8b>] ? kernel_init+0x14d/0x152
[ 0.424628] [<ffffffff81354174>] ? kernel_thread_helper+0x4/0x10
[ 0.424635] [<ffffffff81352233>] ? int_ret_from_sys_call+0x7/0x1b
[ 0.424640] [<ffffffff8134d37c>] ? retint_restore_args+0x5/0x6
[ 0.424645] [<ffffffff81354170>] ? gs_change+0x13/0x13

--

Best regards,
Artur.

[Artur]

I forgot to specify that it's a xen-pvm hypervisor.

# gnt-instance list
Instance Hypervisor OS Primary_node
Status Memory
instance.name xen-pvm debootstrap+default
gc2.netdirect.fr ERROR_down -

--

Best regards,
Artur.

[Guido Trotter]

Can you show a gnt-instance info? Possibly you have to update the root value passed to the kernel command line with the correct root partition name.

Thanks!

Guido

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[Artur]

Hello,

Here it is :

# gnt-instance info --all
Instance name: clusterburn.netdirect.fr
UUID: f0058aa0-0359-4658-a8dc-a1973d8d1fc5
Serial number: 4
Creation time: 2013-02-08 12:05:41
Modification time: 2013-02-08 16:46:05
State: configured to be up, actual state is down
Nodes:
- primary: gc1.netdirect.fr
group: default (UUID 0dc5c2eb-d2ad-4cce-9554-3f555e859237)
- secondaries:
Operating system: debootstrap+default
Allocated network port: None
Hypervisor: xen-pvm
- blockdev_prefix: default (sd)
- bootloader_args: default ()
- bootloader_path: default ()
- cpu_mask: default (all)
- initrd_path: default ()
- kernel_args: default (ro)
- kernel_path: default (/boot/vmlinuz-3-xenU)
- reboot_behavior: default (reboot)
- root_path: default (/dev/sda1)
- use_bootloader: default (False)
Hardware:
- always_failover: default (False)
- auto_balance: default (True)
- maxmem: 10240
- memory: default (10240)
- minmem: 10240
- spindle_use: default (1)
- vcpus: 3
- NICs:
- nic/0: MAC: aa:00:00:b5:f5:a6, IP: None, mode: bridged, link:
xen-br0
Disk template: plain
Disks:
- disk/0: lvm, size 10.0G
access mode: rw
logical_id: xenvg/22948986-c1bb-46dd-8d57-24cc143a0eca.disk0
on primary: /dev/xenvg/22948986-c1bb-46dd-8d57-24cc143a0eca.disk0
(254:0)

On Fri, 8 Feb 2013 22:58:04 +0100, Guido Trotter <ultr...@gmail.com>
wrote:

--

Best regards,
Artur.

[Artur]

Hello,

Le 09/02/2013 17:56, Artur a �crit :
> - blockdev_prefix: default (sd)
> - root_path: default (/dev/sda1)
>
I played with these parameters but it can't boot my instance. Any idea ?

--

Best regards,
Artur.

[Guido Trotter]

On Mon, Feb 11, 2013 at 3:18 PM, Artur <gan...@netdirect.fr> wrote:
> Hello,
>

> Le 09/02/2013 17:56, Artur a écrit :
>> - blockdev_prefix: default (sd)
>> - root_path: default (/dev/sda1)
>>
> I played with these parameters but it can't boot my instance. Any idea ?

This parameter is probably "/dev/xvda1" nowadays.

Thanks,

Guido

[Artur]

Le 11/02/2013 15:33, Guido Trotter a �crit :

> On Mon, Feb 11, 2013 at 3:18 PM, Artur <gan...@netdirect.fr> wrote:
>> Hello,
>>

>> Le 09/02/2013 17:56, Artur a �crit :

>>> - blockdev_prefix: default (sd)
>>> - root_path: default (/dev/sda1)
>>>
>> I played with these parameters but it can't boot my instance. Any idea ?
> This parameter is probably "/dev/xvda1" nowadays.
>

Wow, i did it. :)

I set the parameters this way :

- initrd_path: /boot/initrd-3-xenU

- kernel_args: default (ro)
- kernel_path: default (/boot/vmlinuz-3-xenU)

- root_path: /dev/xvda1

Initrd was missing.

--

Best regards,
Artur.