Xen project Mailing List

Hey guys!

So the entire output of "xm create -c <domU.cfg> is in attachment. The part that is showing the issue is towards the end:

VFS: Cannot open root device "hda1" or unknown-block(0,0)

Please append a correct "root=" boot option; here are the available partitions:

ca00 59997 xvda driver: vbd

Following is the output of my disks by id:

root@XenOpen:/boot# ls -l /dev/disk/by-id/

total 0

lrwxrwxrwx 1 root root 9 2010-09-29 10:31 ata-WDC_WD3200AAKS-75L9A0_WD-WMAV28284320 -> ../../sda

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 ata-WDC_WD3200AAKS-75L9A0_WD-WMAV28284320-part1 -> ../../sda1

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 ata-WDC_WD3200AAKS-75L9A0_WD-WMAV28284320-part2 -> ../../sda2

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 ata-WDC_WD3200AAKS-75L9A0_WD-WMAV28284320-part5 -> ../../sda5

lrwxrwxrwx 1 root root 9 2010-09-29 10:31 scsi-SATA_WDC_WD3200AAKS-_WD-WMAV28284320 -> ../../sda

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 scsi-SATA_WDC_WD3200AAKS-_WD-WMAV28284320-part1 -> ../../sda1

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 scsi-SATA_WDC_WD3200AAKS-_WD-WMAV28284320-part2 -> ../../sda2

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 scsi-SATA_WDC_WD3200AAKS-_WD-WMAV28284320-part5 -> ../../sda5

lrwxrwxrwx 1 root root 9 2010-09-29 10:31 wwn-0x50014ee0ac054885 -> ../../sda

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 wwn-0x50014ee0ac054885-part1 -> ../../sda1

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 wwn-0x50014ee0ac054885-part2 -> ../../sda2

lrwxrwxrwx 1 root root 10 2010-09-29 10:31 wwn-0x50014ee0ac054885-part5 -> ../../sda5

I changed the "hda1" to "sda2" in my cfg file, so now it looks like this:

kernel = "/boot/vmlinuz-2.6.32.21-xen"

memory = 128

name = "MyLinux"

root = "/dev/sda2 ro"

disk = [ "file:/boot/initrd.img-2.6.32.21-xen,hda1,w" ]

And now when I do "xm create" I get:

root@XenOpen:/etc/xen# xm create -c mylinux.cfg

Using config file "./mylinux.cfg".

Started domain MyLinux (id=14)

Domain has already finished

Could not start console

And still no addition to "xm list" obviously!... What's the correct value that I should use for the "root" parameter?

The contents of /etc/fstab are:

root@XenOpen:/boot# cat /etc/fstab

# /etc/fstab: static file system information.

#

# Use 'blkid -o value -s UUID' to print the universally unique identifier

# for a device; this may be used with UUID= as a more robust way to name

# devices that works even if disks are added and removed. See fstab(5).

#

# <file system> <mount point> <type> <options> <dump> <pass>

proc /proc proc nodev,noexec,nosuid 0 0

# / was on /dev/sda1 during installation

UUID=44f6c489-7214-4402-a71b-1b70f6031acf / ext4 errors=remount-ro 0 1

# swap was on /dev/sda5 during installation

UUID=e4e47af4-4513-4557-a802-e71bcebe9395 none swap sw 0 0

Thanks!

On Wed, Sep 29, 2010 at 4:23 PM, Egberto Monteiro <egbertomonteiro@xxxxxxxxx> wrote:

Try "xm create -c <domu.cfg>" and show us what occured.

Att,
Egberto Monteiro

Em 09/29/2010 05:08 PM, Priya escreveu:
Hello people!

This is a strange error and I am sure I am missing something really basic. I installed Xen 4.0.1 on Ubuntu 10.04, and only have command line access to my domain-0.

Every thing seems to be working okay. My "xm info" output is as follows:

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

root@XenOpen:/etc/xen# xm info

host : XenOpen

release : 2.6.32.21-xen

version : #2 SMP Mon Sep 27 10:23:06 EDT 2010

machine : x86_64

nr_cpus : 2

nr_nodes : 1

cores_per_socket : 2

threads_per_core : 1

cpu_mhz : 2992

hw_caps : bfebfbff:20100800:00000000:00000940:0408e3fd:00000000:00000001:00000000

virt_caps :

total_memory : 3931

free_memory : 3048

node_to_cpu : node0:0-1

node_to_memory : node0:3048

node_to_dma32_mem : node0:2984

max_node_id : 0

xen_major : 4

xen_minor : 0

xen_extra : .1

xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p

xen_scheduler : credit

xen_pagesize : 4096

platform_params : virt_start=0xffff800000000000

xen_changeset : unavailable

xen_commandline : dummy=dummy dom0_mem=832M

cc_compiler : gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5)

cc_compile_by : root

cc_compile_domain :

cc_compile_date : Mon Sep 27 11:36:56 EDT 2010

xend_config_format : 4

_________________

I tried to create PV domains using the following configuration file:

root@XenOpen:/etc/xen# more mylinux.cfg

kernel = "/boot/vmlinuz-2.6.32.21-xen"

memory = 128

name = "MyLinux"

root = "/dev/hda1 ro"

disk = [ "file:/boot/initrd.img-2.6.32.21-xen,hda1,w" ]

The problem is that when I try to create new PV domains, I get a message saying that they have been created but they don't show up when I do a subsequent xm list:

root@XenOpen:/etc/xen# xm create mylinux.cfg

Using config file "./mylinux.cfg".

Started domain MyLinux (id=11)

root@XenOpen:/etc/xen# xm list

Name ID Mem VCPUs State Time(s)

Domain-0 0 832 2 r----- 151.2

Could someone please throw some light on what in the world is going on...please!

--
Priya Bhat
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--
Priya Bhat

Re: [Xen-users] New domains do not show up with "xm list"