Newbie problem: disk error launching FC3 in non-0 domain

Newbie problem: disk error launching FC3 in non-0 domain

[Roland Paterson-Jones]

Hi again

I have a minimal Fedora Core 3 image running fine as domain 0 (thanks 
and sorry for the previous FAQ query) using both the standard install 
ramdisk image, and the FC3 ramdisk image downloaded from xen sourceforge.

However, I can't get it running in a non-zero domain.

In brief, I have a full FC3 installed on /dev/hda1, which I typically 
use as my domain 0 OS. Then I have a minimal FC3 installed on /dev/hdb2.

I can boot into the minimal FC3 on /dev/hdb2 as domain 0 under Xen 
without a problem.

I'm trying to 'xm create' the minimal FC3 from the full FC3 under Xen, 
but I get a disk error. Here's the relevant log:

------------------------------------------------------------------------------------------------------
<snip>

Creating /dev
Starting udev
Creating root device
Mounting root filesystem
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
Switching to new root
modprobe: FATAL: Could not load /lib/modules/2.6.10-xenU/modules.dep:
No such file or directory

INIT: version 2.85 booting
                Welcome to Fedora Core
                Press 'I' to enter interactive startup.
Starting udev:  [  OK  ]
Initializing hardware...  storage network audio done[  OK  ]
raidautorun: failed to open /dev/md0: 6
Configuring kernel parameters:  [  OK  ]
hwclock is unable to get I/O port access:  the iopl(3) call failed.
Setting clock  (localtime): Tue Feb  8 16:05:19 SAST 2005 [  OK  ]
Setting hostname localhost.localdomain:  [  OK  ]
Checking root filesystem
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/hdb2
/: clean, 46221/4866048 files, 350711/9727357 blocks
Error writing block 1548 (Attempt to write block from filesystem
resulted in short write).  Error writing block 1548 (Attempt to write
block from filesystem resulted in short write).

/: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
        (i.e., without -a or -p options)


/: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
        (i.e., without -a or -p options)
[FAILED]

*** An error occurred during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
Give root password for maintenance
(or type Control-D to continue):

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

Any idea what the problem is?

Thanks again
Roland



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Re: Newbie problem: disk error launching FC3 in non-0 domain

[Mark A. Williamson]

<snip>
> Any idea what the problem is?

Could you please post the config file you're using?

Thanks,
Mark


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Re: Newbie problem: disk error launching FC3 in non-0 domain

[Roland Paterson-Jones]

Incidently, I have bundled up the mini FC3 filesystem into a file-backed 
VBD and I'm getting the same problem!

Curiouser and curiouser?

Thanks
Roland

Roland Paterson-Jones wrote:

> Hi again
>
> I have a minimal Fedora Core 3 image running fine as domain 0 (thanks 
> and sorry for the previous FAQ query) using both the standard install 
> ramdisk image, and the FC3 ramdisk image downloaded from xen sourceforge.
>
> However, I can't get it running in a non-zero domain.
>
> In brief, I have a full FC3 installed on /dev/hda1, which I typically 
> use as my domain 0 OS. Then I have a minimal FC3 installed on /dev/hdb2.
>
> I can boot into the minimal FC3 on /dev/hdb2 as domain 0 under Xen 
> without a problem.
>
> I'm trying to 'xm create' the minimal FC3 from the full FC3 under Xen, 
> but I get a disk error. Here's the relevant log:
>
> ------------------------------------------------------------------------------------------------------ 
>
> <snip>
>
> Creating /dev
> Starting udev
> Creating root device
> Mounting root filesystem
> EXT3-fs: mounted filesystem with ordered data mode.
> kjournald starting.  Commit interval 5 seconds
> Switching to new root
> modprobe: FATAL: Could not load /lib/modules/2.6.10-xenU/modules.dep:
> No such file or directory
>
> INIT: version 2.85 booting
>                Welcome to Fedora Core
>                Press 'I' to enter interactive startup.
> Starting udev:  [  OK  ]
> Initializing hardware...  storage network audio done[  OK  ]
> raidautorun: failed to open /dev/md0: 6
> Configuring kernel parameters:  [  OK  ]
> hwclock is unable to get I/O port access:  the iopl(3) call failed.
> Setting clock  (localtime): Tue Feb  8 16:05:19 SAST 2005 [  OK  ]
> Setting hostname localhost.localdomain:  [  OK  ]
> Checking root filesystem
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/hdb2
> /: clean, 46221/4866048 files, 350711/9727357 blocks
> Error writing block 1548 (Attempt to write block from filesystem
> resulted in short write).  Error writing block 1548 (Attempt to write
> block from filesystem resulted in short write).
>
> /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
>        (i.e., without -a or -p options)
>
>
> /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
>        (i.e., without -a or -p options)
> [FAILED]
>
> *** An error occurred during the file system check.
> *** Dropping you to a shell; the system will reboot
> *** when you leave the shell.
> Give root password for maintenance
> (or type Control-D to continue):
>
> ----------------------------------------------------------------------------------------- 
>
>
> Any idea what the problem is?
>
> Thanks again
> Roland
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
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> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel
>
>
>



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Re: Newbie problem: disk error launching FC3 in non-0 domain

[Rik van Riel]

On Tue, 8 Feb 2005, Roland Paterson-Jones wrote:

> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/hdb2
> /: clean, 46221/4866048 files, 350711/9727357 blocks
> Error writing block 1548 (Attempt to write block from filesystem
> resulted in short write).  Error writing block 1548 (Attempt to write
> block from filesystem resulted in short write).

Are you exporting the disk read-only by chance ?

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan


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