Xen users - Mar 2007 - RE: Xen 3.0.4 on RH EL 4.4 - can''t make it boot kerne l

> -----Original Message-----
> From: Petersson, Mats [mailto:Mats.Petersson@amd.com]
> Sent: Thursday, March 01, 2007 10:12 AM
> To: Foreman, Tim
> Cc: xen-users@lists.xensource.com
> Subject: RE: [Xen-users] Xen 3.0.4 on RH EL 4.4 - can''t make it
boot
> kerne l
> 
> 
> > -----Original Message-----
> > From: Foreman, Tim [mailto:tforeman@ibsys.com] 
> > Sent: 01 March 2007 16:02
> > To: Petersson, Mats
> > Subject: RE: [Xen-users] Xen 3.0.4 on RH EL 4.4 - can''t make 
> > it boot kerne l
> > 
> > > Ok, that didn''t tell me what I wanted to know, how about
> > the output of
> > > "mount"?
> > > 
> > > I want to see what "/" is really mounted to.
> > 
> > It''s mounted to /dev/hda1:
> > 
> > /dev/hda1 on / type ext2 (rw)
> > none on /proc type proc (rw)
> > none on /sys type sysfs (rw)
> > none on /dev/pts type devpts (rw,gid=5,mode=620)
> > usbfs on /proc/bus/usb type usbfs (rw)
> > none on /dev/shm type tmpfs (rw)
> > /dev/hda2 on /opt type ext2 (rw)
> > /dev/hda3 on /usr type ext2 (rw)
> > /dev/hda6 on /var type ext2 (rw)
> > /dev/hda7 on /var/log/IBS type ext2 (rw)
> > none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
> 
> That looks sane. 
> 
> > 
> > Which is why I had root=/dev/hda1 in grub.conf.
> 
> Yes, just checking - because you wouldn''t be the first trying to
boot
> from the wrong place! ;-) [This is particularly the case when dealing
> with "error 6", as that means "No such device" - error
2 is "no such
> file or directory"]. 
> 
> You also get an error loading the IDE driver, which may be 
> the cause of
> all other problems. You may want to try rebuilding the kernel with a
> builtin IDE driver (as you DO need that driver allways, using it as a
> module is only to satisfy those who complain when they get an 
> IDE driver
> when they only have SCSI drives on the system). 
> 
> I''ve also CC''d this back to the Xen users list so that
others may take
> part in the communication. 
> 
> > 
> > Thanks for your assistance.
> 
> You''re welcome. 
I was hoping to avoid rebuilding the kernel, but the stuff I found
using Google seemed to indicate that the ide module might have been
the issue.

I guess I''ll try heading down that road.

--Tim

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Foreman, Tim wrote:
> 
>> You also get an error loading the IDE driver, which may be 
>> the cause of all other problems. You may want to try rebuilding the
>> kernel with a
>> builtin IDE driver 
> 
> I was hoping to avoid rebuilding the kernel, but the stuff I found
> using Google seemed to indicate that the ide module might have been
> the issue.
> --Tim
> 
I had this same error.  Sadly I am too late to help you avoid some
work/compile time. But for the benefit of others...  *Don''t rebuild the
kernel*, just rebuild the initrd image.

My IDE controller doesn''t appear in the default initrd image included
in the
RPMs from Xen (for RHEL 4 anyway), but there is a module in the RPM for it. 
I had to rebuild the initrd image with my IDE controller driver in.  This is
the same as the old Linux problem of SCSI controllers - I need the disk to
load the driver, but need the driver to access the disk. 

0 Boot to a working Linux
1 Run "lspci | grep IDE" to find out which IDE controller you are
using
1a My output looks like this:
00:0f.0 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
2 Look in the kernel/drivers/ide/pci directory to find out what your
driver''s filename is.
2a There is one file with "via" in the name called via82cxxx.ko, so I
probably want that one.
3 Run: "mkinitrd --with=ide-driver-filename-without-.ko initrd-image-name
kernel-version" 
3a For me, because I have a Via controller, I ran this:
     mkinitrd --with=via82cxxx initrd-2.6-xenbrad.img 2.6.16.33-xen_3.0.4.1
4 Now use the newly create initrd image when you boot to your Dom0 kernel -
do this by say editing grub.conf
4a Worked like a charm for me.
-- 
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http://www.nabble.com/RE%3A-Xen-3.0.4-on-RH-EL-4.4---can%27t-make-it-boot-kerne-l-tf3327592.html#a9353653
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