[Xen-users] Selecting Xen in Grub causes machine to reboot back to POST

[Scott Garron <xen-users@xxxxxxxxxxxxxxxxxx>]

     I'm attempting to use an older machine to do some Xen testing, and
I haven't been making a whole lot of progress.  If I select the Xen
entry from my Grub menu, the screen goes black for a few seconds, then
the machine reboots back to the power on self test (POST) and repeats
the process.  It doesn't seem to show any error messages or any
indication as to what is wrong.  It just reboots.  Does anyone have any
insight as to what would be causing this to happen?  I'm successfully
using Xen on a fair number of other machines, but this one has me
stumped.  A Linux pv_ops kernel, without Xen, boots fine.

     I've tried with both my own compile of Xen 4.0.0rc9 and a recent
Debian (testing; xen-hypervisor-3.4-i386_3.4.3~rc3-1_i386.deb) version
of Xen in /boot and get the same results for both.




Here's the CPU info:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 1
model name      : Intel(R) Celeron(R) CPU 1.70
stepping        : 3
cpu MHz         : 1694.572
cache size      : 128 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mpat pse36 clflush dts acpi
mmx fxsr sse sse2 s
bogomips        : 3389.14
clflush size    : 64
cache_alignment : 128
address sizes   : 36 bits physical, 32 bits vi
power management:


lspci output:

00:00.0 Host bridge: Intel Corporation 82845 845 [Brookdale] Chipset
Host Bridge (rev 11)
00:01.0 PCI bridge: Intel Corporation 82845 845 [Brookdale] Chipset AGP
Bridge (rev 11)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 05)
00:1f.0 ISA bridge: Intel Corporation 82801BA ISA Bridge (LPC) (rev 05)
00:1f.1 IDE interface: Intel Corporation 82801BA IDE U100 Controller
(rev 05)
00:1f.2 USB Controller: Intel Corporation 82801BA/BAM USB Controller #1
(rev 05)
00:1f.3 SMBus: Intel Corporation 82801BA/BAM SMBus Controller (rev 05)
00:1f.4 USB Controller: Intel Corporation 82801BA/BAM USB Controller #1
(rev 05)
02:0c.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet
Pro 100 (rev 0d)
02:0d.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet
Pro 100 (rev 0d)
02:0f.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)


The machine has 768MB RAM


Here's my grub2 menu entry for Xen (in /boot/grub/grub.cfg):

menuentry "Xen 4.0.0rc9 / Debian kernel 2.6.32.11" {
        insmod ext2
        set root=(hd0,2)
        multiboot /xen-4.0.0-rc9.gz dummy=dummy dom0_mem=384M
        module /vmlinuz-2.6.32.11 dummy=dummy
root=UUID="6c2a3133-5d8d-4555-8237-8b0db9036ef9" ro console=tty0
        module /initrd.img-2.6.32.11
}



Output of sfdisk -uS -l /dev/hda:


Disk /dev/hda: 7476 cylinders, 255 heads, 63 sectors/track
Units = sectors of 512 bytes, counting from 0

   Device Boot    Start       End   #sectors  Id  System
/dev/hda1   *        63   3903794    3903732   b  W95 FAT32
/dev/hda2       3903795   4192964     289170  83  Linux
/dev/hda3       4192965 120101939  115908975  8e  Linux LVM
/dev/hda4             0         -          0   0  Empty


hda1 [hd0,1] is a test partition for DOS/Windows stuff, hda2 [hd0,2] is
/boot (where vmlinuz and xen reside) and hda3 [hd0,3] is broken down by
LVM into several volumes:  root, swap, usr, var, tmp


     Any suggestions or ideas would be appreciated.  Thanks!

--
Scott Garron

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