Mailing List Archive

If you used the xen installer, it installed a kernel with very limited
support for block devices. It looks like you are using at least a SCSI
HBA or maybe even a RAID controller. The driver for this interface is
probably not in the default kernel. Most distributions either install a
kernel with the driver for your hardware built-in or an initial ram
disk image with the driver.

The easiest solution is to
download the source, and expand the xen-2.0 directory
cd to the xen-2.0 directory and run "make world"
cd into the linux-2.6.11-xen0 directory and run "make ARCH=xen
xconfig" (or menuconfig if you don't have X)
build whatever drivers you need for the hard drives into the
kernel, make modules for everything else (usb support, other
filesystems, network cards, etc)
cd ../ to the xen-2.0 directory
run "make install"

That should build and install your custom kernel.

Good luck,
Mark

Arijit Ganguly wrote:

>All,
>
>I was wondering what distributions of linux are supported inside Xen. I
>built the Xen kernel image on my Red Hat Enterprise 3 machine, and then
>specify the menu.conf entry as:
>title Xen
>kernel xen.gz dom0_mem=128000
>module vmlinuz-2.6.10-xen0 root=/dev/sda6 ro console=tty0
>
>When I boot this image, I get an error like
>unable to mount root sda6
>
>Ithe Red Hat Enterprise3 image however mounts it perfectly fine.
>
>My machine is dell pe1800 dual processor (server class). i hope Xen is not
>just confined to desktops, because it wrked fine on a debian desktop.
>
>Arijit
>
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>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

I rebuilt my custom kernel, with extensive support for RAID.
I am still not able to boot XenLinux.

These are the last few lines that I see before the system reboots.

md: autodetecting RAID arrays
md: autorun DONE
Root-NFS: No NFS server available
VFS: unable to mount rootsfs via NFS, trying floppy
VFS: insert root floppy and press enter
Cannot open root=sda5 or unknown block(2,0)

One another note my boot device is /dev/sda5, just to make sure that Xen may
have issues with extended and primary partitions.

any clues.

Arijit

Arijit


On 6/7/05, Mark Porter <mark@porterpeople.com> wrote:
>
> If you used the xen installer, it installed a kernel with very limited
> support for block devices. It looks like you are using at least a SCSI
> HBA or maybe even a RAID controller. The driver for this interface is
> probably not in the default kernel. Most distributions either install a
> kernel with the driver for your hardware built-in or an initial ram
> disk image with the driver.
>
> The easiest solution is to
> download the source, and expand the xen-2.0 directory
> cd to the xen-2.0 directory and run "make world"
> cd into the linux-2.6.11-xen0 directory and run "make ARCH=xen
> xconfig" (or menuconfig if you don't have X)
> build whatever drivers you need for the hard drives into the
> kernel, make modules for everything else (usb support, other
> filesystems, network cards, etc)
> cd ../ to the xen-2.0 directory
> run "make install"
>
> That should build and install your custom kernel.
>
> Good luck,
> Mark
>
> Arijit Ganguly wrote:
>
> >All,
> >
> >I was wondering what distributions of linux are supported inside Xen. I
> >built the Xen kernel image on my Red Hat Enterprise 3 machine, and then
> >specify the menu.conf entry as:
> >title Xen
> >kernel xen.gz dom0_mem=128000
> >module vmlinuz-2.6.10-xen0 root=/dev/sda6 ro console=tty0
> >
> >When I boot this image, I get an error like
> >unable to mount root sda6
> >
> >Ithe Red Hat Enterprise3 image however mounts it perfectly fine.
> >
> >My machine is dell pe1800 dual processor (server class). i hope Xen is
> not
> >just confined to desktops, because it wrked fine on a debian desktop.
> >
> >Arijit
> >
> >
> >
> >------------------------------------------------------------------------
> >
> >_______________________________________________
> >Xen-users mailing list
> >Xen-users@lists.xensource.com
> >http://lists.xensource.com/xen-users
> >
>

Are you sure you enabled support for your SCSI controller? That looks like
the most likely problem here.

Cheers,
Mark

On Jun 8 2005, Arijit Ganguly wrote:

> (Message body was not text: suppressed)

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

You probably need an initrd (even if the block device driver is compiled
in).

mkinitrd /boot/initrd-2.6.10-xen0.img 2.6.10-xen0

and add the corresponding line to grub

module initrd-2.6.10-xen0.img

James

On Wed, 2005-06-08 at 01:42, Arijit Ganguly wrote:
> I rebuilt my custom kernel, with extensive support for RAID.
> I am still not able to boot XenLinux.
>
> These are the last few lines that I see before the system reboots.
>
> md: autodetecting RAID arrays
> md: autorun DONE
> Root-NFS: No NFS server available
> VFS: unable to mount rootsfs via NFS, trying floppy
> VFS: insert root floppy and press enter
> Cannot open root=sda5 or unknown block(2,0)
>
> One another note my boot device is /dev/sda5, just to make sure that
> Xen may have issues with extended and primary partitions.
>
> any clues.
>
> Arijit
>
> Arijit
>
>
> On 6/7/05, Mark Porter <mark@porterpeople.com> wrote:
> If you used the xen installer, it installed a kernel with
> very limited
> support for block devices. It looks like you are using at
> least a SCSI
> HBA or maybe even a RAID controller. The driver for this
> interface is
> probably not in the default kernel. Most distributions either
> install a
> kernel with the driver for your hardware built-in or an
> initial ram
> disk image with the driver.
>
> The easiest solution is to
> download the source, and expand the xen-2.0 directory
> cd to the xen-2.0 directory and run "make world"
> cd into the linux-2.6.11-xen0 directory and run "make
> ARCH=xen
> xconfig" (or menuconfig if you don't have X)
> build whatever drivers you need for the hard drives into
> the
> kernel, make modules for everything else (usb support, other
> filesystems, network cards, etc)
> cd ../ to the xen-2.0 directory
> run "make install"
>
> That should build and install your custom kernel.
>
> Good luck,
> Mark
>
> Arijit Ganguly wrote:
>
> >All,
> >
> >I was wondering what distributions of linux are supported
> inside Xen. I
> >built the Xen kernel image on my Red Hat Enterprise 3
> machine, and then
> >specify the menu.conf entry as:
> >title Xen
> >kernel xen.gz dom0_mem=128000
> >module vmlinuz-2.6.10-xen0 root=/dev/sda6 ro console=tty0
> >
> >When I boot this image, I get an error like
> >unable to mount root sda6
> >
> >Ithe Red Hat Enterprise3 image however mounts it perfectly
> fine.
> >
> >My machine is dell pe1800 dual processor (server class). i
> hope Xen is not
> >just confined to desktops, because it wrked fine on a debian
> desktop.
> >
> >Arijit
> >
> >
> >
> >------------------------------------------------------------------------
> >
> >_______________________________________________
> >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

I had the same issues.

The solution was to compile the drivers (SCSI or SATA) into the
kernel. Do NOT use modules.

Then mkinitrd a new initrd, however, use the flag "--builtin <module>"
to tell it that the driver is built into the kernel itself.

Rebooting using that made it work. (Is this a bug that should
be reported?)

I'm using x86_64, where is it at for that? Besides dom0, can
I boot other domains yet?

Thanks,
Vip



_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

I guess the reason why it is failing is the lack of driver support for dual
drive bus existing on dell pe1800.

Besides, I have also been trying to recompile the kernel but end up getting
an error in some driver.c file.

I did the following:
Inside: xen-2.0
make world
cd linux-2.6.10-xen0
make ARCH=xen menuconfig
//selected my drivers and modules
make
I get error in balloon.c, in function balloon_process
line 210: phys_to_machine_mapping undeclared
line 210: INVALID_P2M_ENTRY undeclared.

any clues
Arijit



On 08 Jun 2005 10:26:22 +0100, James Bulpin <james@xensource.com> wrote:
>
> You probably need an initrd (even if the block device driver is compiled
> in).
>
> mkinitrd /boot/initrd-2.6.10-xen0.img 2.6.10-xen0
>
> and add the corresponding line to grub
>
> module initrd-2.6.10-xen0.img
>
> James
>
> On Wed, 2005-06-08 at 01:42, Arijit Ganguly wrote:
> > I rebuilt my custom kernel, with extensive support for RAID.
> > I am still not able to boot XenLinux.
> >
> > These are the last few lines that I see before the system reboots.
> >
> > md: autodetecting RAID arrays
> > md: autorun DONE
> > Root-NFS: No NFS server available
> > VFS: unable to mount rootsfs via NFS, trying floppy
> > VFS: insert root floppy and press enter
> > Cannot open root=sda5 or unknown block(2,0)
> >
> > One another note my boot device is /dev/sda5, just to make sure that
> > Xen may have issues with extended and primary partitions.
> >
> > any clues.
> >
> > Arijit
> >
> > Arijit
> >
> >
> > On 6/7/05, Mark Porter <mark@porterpeople.com> wrote:
> > If you used the xen installer, it installed a kernel with
> > very limited
> > support for block devices. It looks like you are using at
> > least a SCSI
> > HBA or maybe even a RAID controller. The driver for this
> > interface is
> > probably not in the default kernel. Most distributions either
> > install a
> > kernel with the driver for your hardware built-in or an
> > initial ram
> > disk image with the driver.
> >
> > The easiest solution is to
> > download the source, and expand the xen-2.0 directory
> > cd to the xen-2.0 directory and run "make world"
> > cd into the linux-2.6.11-xen0 directory and run "make
> > ARCH=xen
> > xconfig" (or menuconfig if you don't have X)
> > build whatever drivers you need for the hard drives into
> > the
> > kernel, make modules for everything else (usb support, other
> > filesystems, network cards, etc)
> > cd ../ to the xen-2.0 directory
> > run "make install"
> >
> > That should build and install your custom kernel.
> >
> > Good luck,
> > Mark
> >
> > Arijit Ganguly wrote:
> >
> > >All,
> > >
> > >I was wondering what distributions of linux are supported
> > inside Xen. I
> > >built the Xen kernel image on my Red Hat Enterprise 3
> > machine, and then
> > >specify the menu.conf entry as:
> > >title Xen
> > >kernel xen.gz dom0_mem=128000
> > >module vmlinuz-2.6.10-xen0 root=/dev/sda6 ro console=tty0
> > >
> > >When I boot this image, I get an error like
> > >unable to mount root sda6
> > >
> > >Ithe Red Hat Enterprise3 image however mounts it perfectly
> > fine.
> > >
> > >My machine is dell pe1800 dual processor (server class). i
> > hope Xen is not
> > >just confined to desktops, because it wrked fine on a debian
> > desktop.
> > >
> > >Arijit
> > >
> > >
> > >
> >
> >------------------------------------------------------------------------
> > >
> > >_______________________________________________
> > >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
>
>

On Wed, 2005-06-08 at 19:14, Arijit Ganguly wrote:
> I guess the reason why it is failing is the lack of driver support for
> dual drive bus existing on dell pe1800.
>
> Besides, I have also been trying to recompile the kernel but end up
> getting an error in some driver.c file.
>
> I did the following:
> Inside: xen-2.0
> make world
> cd linux-2.6.10-xen0
> make ARCH=xen menuconfig
> //selected my drivers and modules
> make

try "make ARCH=xen" instead.

> I get error in balloon.c, in function balloon_process
> line 210: phys_to_machine_mapping undeclared
> line 210: INVALID_P2M_ENTRY undeclared.
>
> any clues
> Arijit



_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Am Mittwoch, den 08.06.2005, 11:14 -0700 schrieb Arijit Ganguly:
> I guess the reason why it is failing is the lack of driver support for
> dual drive bus existing on dell pe1800.
>
> Besides, I have also been trying to recompile the kernel but end up
> getting an error in some driver.c file.
>
> I did the following:
> Inside: xen-2.0
> make world
> cd linux-2.6.10-xen0
> make ARCH=xen menuconfig
> //selected my drivers and modules
> make
> I get error in balloon.c, in function balloon_process
> line 210: phys_to_machine_mapping undeclared
> line 210: INVALID_P2M_ENTRY undeclared.

you need to append ARCH=xen to your make command
e.g.

make ARCH=xen menuconfig
make ARCH=xen all

Cheers,

Daniel

Am Dienstag, den 07.06.2005, 17:42 -0700 schrieb Arijit Ganguly:
[snip]
> Cannot open root=sda5 or unknown block(2,0)
>
> One another note my boot device is /dev/sda5, just to make sure that
> Xen may have issues with extended and primary partitions.

Maybe try to add an extra line to your grub configuration like

root (hdX,X) # replace X with the appropriate partition numbers

Cheers,

Daniel

when i compile using make arch=xen, i see the following error message:
drivers/scsi/pci2000.c: In function `Pci2000_QueueCommand':
drivers/scsi/pci2000.c:512: structure has no member named `nextSg'
drivers/scsi/pci2000.c:537: structure has no member named `nextSg'
drivers/scsi/pci2000.c: At top level:
drivers/scsi/pci2000.c:825: unknown field `abort' specified in initializer
drivers/scsi/pci2000.c:825: warning: initialization from incompatible
pointer type
drivers/scsi/pci2000.c:826: unknown field `reset' specified in initializer
drivers/scsi/pci2000.c:826: warning: initialization from incompatible
pointer type
make[5]: *** [drivers/scsi/pci2000.o] Error 1
make[4]: *** [drivers/scsi] Error 2
make[3]: *** [drivers] Error 2
make[3]: Leaving directory `/xen/xen-2.0/linux-2.6.10-xen0'
make[2]: *** [build] Error 2
make[2]: Leaving directory `/xen/xen-2.0'
make[1]: *** [linux-2.6-xen0-build] Error 2
make[1]: Leaving directory `/xen/xen-2.0'
make: *** [kernels] Error 1

Arijit

On 6/8/05, Daniel Meinhold <daniel.meinhold@unixpowered.de> wrote:
>
> Am Dienstag, den 07.06.2005, 17:42 -0700 schrieb Arijit Ganguly:
> [snip]
> > Cannot open root=sda5 or unknown block(2,0)
> >
> > One another note my boot device is /dev/sda5, just to make sure that
> > Xen may have issues with extended and primary partitions.
>
> Maybe try to add an extra line to your grub configuration like
>
> root (hdX,X) # replace X with the appropriate partition numbers
>
> Cheers,
>
> Daniel
>
>
>
>
> BodyID:106122826.2.n.logpart (stored separately)
>
>

This SCSI driver is broken - the driver hasn't been touched for years and
the API has changed around it. You may have noticed that you have to turn
off "Select only drivers expected to compile cleanly" to have the option
of building it.

Curiously, the complaints about lines 512 and 537 don't match with the
code in the standard tree:

drivers/scsi/pci2000.c:512: error: structure has no member named `address'
drivers/scsi/pci2000.c:537: error: structure has no member named `address'

Have you applied a patch to this driver?

Anyway, not a Xen problem.

James

On Wed, June 8, 2005 7:43 pm, Arijit Ganguly said:
> when i compile using make arch=xen, i see the following error message:
> drivers/scsi/pci2000.c: In function `Pci2000_QueueCommand':
> drivers/scsi/pci2000.c:512: structure has no member named `nextSg'
> drivers/scsi/pci2000.c:537: structure has no member named `nextSg'
> drivers/scsi/pci2000.c: At top level:
> drivers/scsi/pci2000.c:825: unknown field `abort' specified in initializer
> drivers/scsi/pci2000.c:825: warning: initialization from incompatible
> pointer type
> drivers/scsi/pci2000.c:826: unknown field `reset' specified in initializer
> drivers/scsi/pci2000.c:826: warning: initialization from incompatible
> pointer type
> make[5]: *** [drivers/scsi/pci2000.o] Error 1
> make[4]: *** [drivers/scsi] Error 2
> make[3]: *** [drivers] Error 2
> make[3]: Leaving directory `/xen/xen-2.0/linux-2.6.10-xen0'
> make[2]: *** [build] Error 2
> make[2]: Leaving directory `/xen/xen-2.0'
> make[1]: *** [linux-2.6-xen0-build] Error 2
> make[1]: Leaving directory `/xen/xen-2.0'
> make: *** [kernels] Error 1
>
> Arijit
>
> On 6/8/05, Daniel Meinhold <daniel.meinhold@unixpowered.de> wrote:
>>
>> Am Dienstag, den 07.06.2005, 17:42 -0700 schrieb Arijit Ganguly:
>> [snip]
>> > Cannot open root=sda5 or unknown block(2,0)
>> >
>> > One another note my boot device is /dev/sda5, just to make sure that
>> > Xen may have issues with extended and primary partitions.
>>
>> Maybe try to add an extra line to your grub configuration like
>>
>> root (hdX,X) # replace X with the appropriate partition numbers
>>
>> Cheers,
>>
>> Daniel
>>
>>
>>
>>
>> BodyID:106122826.2.n.logpart (stored separately)
>>
>>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users



_______________________________________________
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