Re: [Xen-users] Xen reboots

[Tulasi <kuzum@xxxxxxxxxx>]

Hello Seneca

here is the requested information:

xen@ubuntu:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/md2        /               ext3    defaults,errors=remount-ro 0       1
/dev/md0        /boot           ext3    defaults        0       2
/dev/md3        /srv            ext3    defaults        0       2
/dev/md1        none            swap    sw              0       0
/dev/hdb        /media/cdrom0   udf,iso9660 user,noauto     0       0
xen@ubuntu:~$

/boot/grub/menu.lst:
title           Ubuntu, kernel 2.6.12-9-386
root            (hd0,0)
kernel          /vmlinuz-2.6.12-9-386 root=/dev/md2 ro quiet splash
initrd          /initrd.img-2.6.12-9-386
savedefault
boot

title Xen 3.0 / XenLinux 2.6.16
root            (hd0,0)
kernel          /xen-3.0.2.gz noreboot dom0_mem=262144
module          /vmlinuz-2.6.16-xen root=/dev/md2 ro console=tty0
module          /initrd.img-2.6.16.xen
savedefault
boot

title           Ubuntu, kernel 2.6.12-9-386 (recovery mode)
root            (hd0,0)
kernel          /vmlinuz-2.6.12-9-386 root=/dev/md2 ro single
initrd          /initrd.img-2.6.12-9-386
boot

title           Ubuntu, memtest86+
root            (hd0,0)
kernel          /memtest86+.bin
boot

and last the boot dir:

Am Dienstag, den 11.04.2006, 08:25 +0200 schrieb Seneca:
> Hello Tulasi,
>
> I see a misspeling in my suggestion, once it is
>
>     initrd.img-2.6.16-xen
>
> and once
>
>     initrd.img-2.6.16.xen
>
> It must be exactly the same of cause, otherwise the file will not be
> found by grub.
>
>
> T> mdadm: error opening /devfs/md/1: No such file or directory
> T> mdadm: error opening /devfs/md/2: No such file or directory
>
> Now this looks really odd. Could you post your /etc/fstab file,
> the current menu.lst and a dir of /boot ?
>
> Seneca
>
>
>
> You wrote at Montag, 10. April 2006 23:57:
>
> T> Thanks Seneca
>
>
> T> still get error:
>
> T> mdadm: error opening /devfs/md/1: No such file or directory
> T> mdadm: error opening /devfs/md/2: No such file or directory
> T> mount: devfs: not mounted
> T> mount: unknown filesystem type "devfs"
> T> ivot_root: No such file or directory
> T> sbin/init: 428: cannot open dev/console: No such file
> T> kernel panic: bla bla bla.....
>
> T> regards
>
> T> Am Sonntag, den 09.04.2006, 23:39 +0200 schrieb Seneca:
>
> T> Hello Tulasi,
>
> T> I think the problem is not the SATA driver, but that you are running
> T> on a RAID (md2). As seen in your non-Xen booting, you are using a
> T> initrd, so you also need to create and use one for your xen boot.
>
> T> For Xen 3.0.2 it works this way:
>
> T> depmod 2.6.16-xen
> T> mkinitrd -o /boot/initrd.img-2.6.16.xen 2.6.16-xen
>
> T> In menu.lst:
>
> T> title           Xen 3.0.2 / XenLinux 2.6.16
> T> root            (hd0,0)
> T> kernel          /boot/xen-3.0.2.gz dom0_mem=262144
> T> module          /boot/vmlinuz-2.6.16-xen root=/dev/md2 ro console=tty0
> T> module          /boot/initrd.img-2.6.16-xen
> T> savedefault
> T> boot
>
> T> Seneca
>
> T>> non of the kernels seems to understand my nVidia Sata controller:
>
> T>> Cannot open root device "md2" or unknown block(0,0)
> T>> please append a correct "root=" boot option
> T>> kernel panic - not syncing: VFS: Unable to mount root fs on
> T>> unknown-block(0,0)
>
> T>> here is my grub conf.
>
> T>> title           Ubuntu, kernel 2.6.12-9-386
> T>> root            (hd0,0)
> T>> kernel          /vmlinuz-2.6.12-9-386 root=/dev/md2 ro quiet splash
> T>> initrd          /initrd.img-2.6.12-9-386
> T>> savedefault
> T>> boot
>
> T>> title Xen 3.0 / XenLinux 2.6
> T>> kernel          /xen-3.0.1.gz noreboot
> T>> module          /vmlinuz-2.6.12.6-xen root=/dev/md2 ro console=tty0
>
> T>> title Xen 3.0 / XenLinux 2.6
> T>> kernel          /xen-3.0.2.gz noreboot
> T>> module          /vmlinuz-2.6.16-xen root=/dev/md2 ro console=tty0
>
> T>> strange Ubuntu 5.10 does recognize the harddrives not so the the
> T> latest
> T>> Ubuntu Dapper, same with Fedora4 and the latest Fedora5
>
> T>> should i get just two IDE Harddisk?
>
> T>> thanks
>
> T>> Am Sonntag, den 09.04.2006, 15:29 +0200 schrieb Peter Fokkinga:
> >>> Quoting Tulasi <kuzum@xxxxxxxxxx>:
> >>> > I made a install of XEN but after booting into xen, it reboots
> >>> > sometime later, without an information.
> >>> >
> >>> > does anyone know what to do.
> >>> >
> >>> Add 'noreboot' (without quotes) to the Xen commandline in your
> >>> grub or lilo configuration. Now Xen will just halt when something
> >>> goes wrong instead of immediately rebooting, thus allowing you
> >>> to see what went wrong. See section 10.3 in the Xen users manual,
> >>> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html
> >>> 
> >>> It's quite possible that the 2.6.12 kernel does not support your
> >>> nVidia SATA controller. I would recommend you try Xen 3.0.2 that
> >>> was released a few days ago (it uses kernel 2.6.16). It can be
> >>> found at http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads
> >>> 
> >>> Cheers, Peter
> >>> 
> >>> _______________________________________________
> >>> Xen-users mailing list
> >>> Xen-users@xxxxxxxxxxxxxxxxxxx
> >>> http://lists.xensource.com/xen-users
>
>
> T>> _______________________________________________
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>
>
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>
>
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