Re: [Xen-users] Howto access the guest filesystem under LVM ?

[Pascal <ml@xxxxxxxxxxxxxxxxx>]

Hi

It's not an image file !

Here is the xen config file

# Automatically generated xen config file
name = "centos45"
memory = "1024"
disk = [ 'phy:/dev/xenvps/centos45,xvda,w', ]
vif = [ 'mac=00:16:3e:1b:9b:36, bridge=xenbr0', ]

uuid = "cd39e4ad-a993-4e2e-fef0-4dcb6d3d862b"
bootloader="/usr/bin/pygrub"
vcpus=1
on_reboot   = 'restart'
on_crash    = 'restart'


What I want is mounted the phy:/dev/xenvps/centos45 in dom0 to be able to copy all the domU (/proc /dev /bin etc)

pascal

Goran Vukoman a écrit :

I don't know virt-install but maybe the file is partitioned? Check this
with

fdisk -l -u my-image.img

and check the start sector of desired partition. Then mount with

mount -o loop,offset=XXXXX my-image.img /mnt

XXXXX = number of start sector multiplied with 512
e.g. start sector = 63 -> XXXXX = 63 * 512 = 32256

Goran

Am Sonntag, den 17.06.2007, 21:04 +0200 schrieb Pascal:
  

I have created a guest using virt-install.
On the dom0 we have created a LogicalVolume and used it to install the guest

We need to copy all the contents of the guest, so we'd like to access 
the guest filesystem from dom0

Tried something like :
mount -o loop /dev/xenvps/mylv /mnt

But it doesn't work
    
        

Omit "-o loop". /dev/xenvps/mylv is a (symlink-to) a real block device
file, so there's no need for loop.

Keep in mind that having it mounted R/W in guest and R/W or R/O in dom0
at the same time is asking for trouble.

  
      

It doesn't work

# mount /dev/mapper/xenvps-centos45 /mnt/
mount: you must specify the filesystem type

Pascal
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
    

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users