hi,
i''ve tried xen 3.1 on my gentoo lastly but i can''t boot xen
because of
the message:
VFS: cannot open root device "/dev/hda3" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0)
i''ve used the tar source from xensource.
so the kernel is 2.6.18-xen
here''s my config:
/etc/fstab
/dev/hda3 / reiserfs noatime
0 0
grub.cong
title Gentoo avec Xen 3.1 / Linux 2.6.18-xen
root (hd0,0)
kernel (hd0,0)/xen-3.1.0.gz
module (hd0,0)/vmlinuz-2.6.18-xen ro root=/dev/hda3
module (hd0,0)/initrd.img-2.6.18-xen --> i''ve tried with and without
any help would be appreciated.
thank in advance.
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
nobody have ever the same problem? On 6/3/07, ko0nz <yesiko0nz@gmail.com> wrote:> hi, > > i''ve tried xen 3.1 on my gentoo lastly but i can''t boot xen because of > the message: > > VFS: cannot open root device "/dev/hda3" or unknown-block(0,0) > Please append a correct "root=" boot option > Kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0) > > i''ve used the tar source from xensource. > so the kernel is 2.6.18-xen > > here''s my config: > /etc/fstab > /dev/hda3 / reiserfs noatime > 0 0 > > grub.cong > title Gentoo avec Xen 3.1 / Linux 2.6.18-xen > root (hd0,0) > kernel (hd0,0)/xen-3.1.0.gz > module (hd0,0)/vmlinuz-2.6.18-xen ro root=/dev/hda3 > module (hd0,0)/initrd.img-2.6.18-xen --> i''ve tried with and without > > any help would be appreciated. > > thank in advance. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ko0nz > Sent: 05 June 2007 17:22 > To: xen-users@lists.xensource.com > Subject: Re: [Xen-users] VFS: cannot open root device > > nobody have ever the same problem?Yes, quite frequently - and it''s always the same answer: You need a CORRECTLY WORKING initrd (or a kernel that is built with the relevant functionality built in). However, figuring out how to make the initrd work can be tricky (there''s really no good tools for this other than logging the output from the console [e.g to a serial port] and trying to figure out what part of the boot process fails and what the reason is). -- Mats> > On 6/3/07, ko0nz <yesiko0nz@gmail.com> wrote: > > hi, > > > > i''ve tried xen 3.1 on my gentoo lastly but i can''t boot xen > because of > > the message: > > > > VFS: cannot open root device "/dev/hda3" or unknown-block(0,0) > > Please append a correct "root=" boot option > > Kernel panic - not syncing: VFS: unable to mount root fs on > unknown-block(0,0) > > > > i''ve used the tar source from xensource. > > so the kernel is 2.6.18-xen > > > > here''s my config: > > /etc/fstab > > /dev/hda3 / reiserfs noatime > > 0 0 > > > > grub.cong > > title Gentoo avec Xen 3.1 / Linux 2.6.18-xen > > root (hd0,0) > > kernel (hd0,0)/xen-3.1.0.gz > > module (hd0,0)/vmlinuz-2.6.18-xen ro root=/dev/hda3 > > module (hd0,0)/initrd.img-2.6.18-xen --> i''ve tried with and without > > > > any help would be appreciated. > > > > thank in advance. > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ko0nz, I had the same problem with RedHat. I customized the kernel (make menuconfig) in ''build-linux-2.6.18-xen_x86_32'' and added additional filesystem support which is (most likely) missing in the default config. That worked for me. Regards, Rob On Tue, 5 Jun 2007 18:21:40 +0200, Ko0nz wrote> nobody have ever the same problem? > > On 6/3/07, ko0nz <yesiko0nz@gmail.com> wrote: > > hi, > > > > i''ve tried xen 3.1 on my gentoo lastly but i can''t boot xen because of > > the message: > > > > VFS: cannot open root device "/dev/hda3" or unknown-block(0,0) > > Please append a correct "root=" boot option > > Kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0) > > > > i''ve used the tar source from xensource. > > so the kernel is 2.6.18-xen > > > > here''s my config: > > /etc/fstab > > /dev/hda3 / reiserfs noatime > > 0 0 > > > > grub.cong > > title Gentoo avec Xen 3.1 / Linux 2.6.18-xen > > root (hd0,0) > > kernel (hd0,0)/xen-3.1.0.gz > > module (hd0,0)/vmlinuz-2.6.18-xen ro root=/dev/hda3 > > module (hd0,0)/initrd.img-2.6.18-xen --> i''ve tried with and without > > > > any help would be appreciated. > > > > thank in advance. > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
oki, thank. i''ll try a look. On 6/5/07, Rob van Oostveen <rob@vanoostveen.net> wrote:> Ko0nz, > > I had the same problem with RedHat. I customized the kernel (make menuconfig) > in ''build-linux-2.6.18-xen_x86_32'' and added additional filesystem support > which is (most likely) missing in the default config. > > That worked for me. > > Regards, > Rob > > On Tue, 5 Jun 2007 18:21:40 +0200, Ko0nz wrote > > nobody have ever the same problem? > > > > On 6/3/07, ko0nz <yesiko0nz@gmail.com> wrote: > > > hi, > > > > > > i''ve tried xen 3.1 on my gentoo lastly but i can''t boot xen because of > > > the message: > > > > > > VFS: cannot open root device "/dev/hda3" or unknown-block(0,0) > > > Please append a correct "root=" boot option > > > Kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0) > > > > > > i''ve used the tar source from xensource. > > > so the kernel is 2.6.18-xen > > > > > > here''s my config: > > > /etc/fstab > > > /dev/hda3 / reiserfs noatime > > > 0 0 > > > > > > grub.cong > > > title Gentoo avec Xen 3.1 / Linux 2.6.18-xen > > > root (hd0,0) > > > kernel (hd0,0)/xen-3.1.0.gz > > > module (hd0,0)/vmlinuz-2.6.18-xen ro root=/dev/hda3 > > > module (hd0,0)/initrd.img-2.6.18-xen --> i''ve tried with and without > > > > > > any help would be appreciated. > > > > > > thank in advance. > > > > > > _______________________________________________ > > > Xen-users mailing list > > > Xen-users@lists.xensource.com > > > http://lists.xensource.com/xen-users > > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users