Re: [Xen-users] lost root password in guest

[Erwan RENIER <erwan.renier@xxxxxxxxxxx>]

You probably have dos partitions on your disk images
to make them aviable :
#rmmod loop
#modprobe loop max_part=63

Mount your images with losetup

you will now have devices like :

/dev/loop0p0
/dev/loop0p1

Wich are the dos partitions on your disk images
You should be able to mount them.

If you have lvm partitions, instead of mounting the loop device  :
#vgscan
#vgchange -ay
your lvs should be avaible in /dev/<vgname>/
unless you named your guest vg like an existing vg on the host in wich case you 
have to rename the vg on the host ( it seems it can be done without unmounting 
, don't forget to revert )


Le 10/05/2011 17:33, Robert Threet a écrit :
> Still having issues.  I ran losetup twice - problem?  Also - I did not
> creat a separate LVM filesystem for vutil - it just created the flat
> file in  /var/lib/xen/images/vutil.img.  vutil is down.
>
> [root@basket ~]# losetup -a
> /dev/loop0: [fd00]:79331424 (/var/lib/xen/images/vutil.img)
> /dev/loop1: [fd00]:79331424 (/var/lib/xen/images/vutil.img)
> [root@basket ~]# mount /dev/loop0 /mnt
> mount: /dev/loop0 already mounted or /mnt busy
> [root@basket ~]# umount /dev/loop0
> umount: /dev/loop0: not mounted
> [root@basket ~]# mount /dev/loop1 /mnt
> mount: you must specify the filesystem type
> [root@basket ~]# mount -t ext4 /dev/loop1 /mnt
> mount: wrong fs type, bad option, bad superblock on /dev/loop1,
>         missing codepage or other error
>         In some cases useful info is found in syslog - try
>         dmesg | tail  or so
>
> [root@basket ~]# mount -t ext3 /dev/loop1 /mnt
> mount: wrong fs type, bad option, bad superblock on /dev/loop1,
>         missing codepage or other error
>         In some cases useful info is found in syslog - try
>         dmesg | tail  or so
>
> [root@basket ~]# xm list
> Name                                      ID Mem(MiB) VCPUs State   Time(s)
> Domain-0                                   0     9333     4 r-----  91413.4
> lnximag1                                   4     1027     1 -b----   2355.5
> vauction                                  16     1024     1 -b----   3029.8
> vlists                                    19     1026     1 -b----    746.2
> vpipelin                                  20     1027     1 -b----    518.8
>
>
> On 05/09/2011 04:41 PM, Igor Serebryany wrote:
> > just do 'mount /dev/loop0 /mnt' -- once you've done losetup you don't
> > need the -o loop anymore.
> >
> > --igor
> >
> > On Mon, May 09, 2011 at 03:57:16PM -0500, Robert Threet wrote:
> > > I can't seem to mount the local disk image:
> > >
> > > [root@basket mapper]# losetup -f /var/lib/xen/images/vutil.img
> > > [root@basket mapper]# losetup -a
> > > /dev/loop0: [fd00]:79331424 (/var/lib/xen/images/vutil.img)
> > >
> > > [root@basket mapper]# mount -o loop -t ext4 /dev/loop0 /mnt
> > > mount: wrong fs type, bad option, bad superblock on /dev/loop2,
> > >         missing codepage or other error
> > >         In some cases useful info is found in syslog - try
> > >         dmesg | tail  or so
> > >
> > > --
> > > Robert Threet
> > > http://yesistilluseperl.blogspot.com/
> > >
> > > _______________________________________________
> > > 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