RE: [Xen-users] I've exhausted my brain trying to get xen toboot...please help

["Ryan Persaud" <Ryan_Persaud@xxxxxxxxxxxx>]

Miguel,

It sounds like you might be getting a kernel panic. To prevent the
machine from rebooting after the error message displays, you can try
specifying that Xen not reboot by appending 'noreboot' to Xen's entry in
grub.conf (See section 10.3 of the xen manual).

Earlier this week, I also thought I was not compiling the correct
drivers in to the kernel, but it turns out that the drivers in 2.6.18
did not support my hardware (Intel's ICH9 chipset).  I had to patch a
few source files and recompile.  What does  the output of 'lspci' and
'lspci -n' look like?

The build instructions you listed are for building a custom dom0 kernel.
To build just the Xen hypervisor, I believe you have to do 'make
install-xen' from the root xen directory.

-Ryan 

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Lionel Kernux
> Sent: Friday, January 11, 2008 4:18 PM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] I've exhausted my brain trying to get 
> xen toboot...please help
> 
> Hi,
> 
> I'm running slackware12 and followed the directions in the 
> README file in the xen source tree.
> 
> I installed grub and made sure it is working properly.
> 
> I did:
> 
> make world
> make install
> 
> and added the correct stanza to the grub.conf
> 
> then I rebooted and selected my xen kernel
> 
> BUT
> 
> xen boots to a certain point and then emits an error and 
> reboots. The error is difficult to see because the reboot 
> happens almost immediately after the error is displayed. From 
> what I can see, the error is "no /sbin/init found or not mounted".
> 
> I suspected that this might be due to a lack of scsi/sata 
> drivers in the xen kernel....so I followed the README 
> instructions to build a custom kernel:
> 
> 5. To rebuild a kernel with a modified config:
> 
>     # make linux-2.6-xen-config CONFIGMODE=menuconfig     (or xconfig)
>     # make linux-2.6-xen-build
>     # make linux-2.6-xen-install
> 
>    Depending on your config, you may need to use 'mkinitrd' to create
>    an initial ram disk, just like a native system e.g.
>     # depmod 2.6.16-xen
>     # mkinitrd -v -f --with=aacraid --with=sd_mod 
> --with=scsi_mod initrd-2.6.16-xen.img 2.6.16-xen
> 
> I made sure that ALL of the SATA/SCSI drivers are built-in so 
> there should be no need for initrd
> 
> But after running make linux-2.6-xen-install some stuff is 
> installed to /boot but NOT the xen-3.2.0.gz that grub needs to load.
> 
> ls -la /boot
> 
> lrwxrwxrwx  1 root root      37 2007-12-20 04:27 README.initrd ->
> /usr/doc/mkinitrd-1.1.2/README.initrd
> lrwxrwxrwx  1 root root      20 2007-12-21 11:36 System.map ->
> System.map.2.6.23.12
> -rw-rw-r--  1 root root 1043384 2008-01-11 15:53 System.map-2.6.18-xen
> -rw-r--r--  1 root root  795880 2007-06-19 16:18 
> System.map-generic-2.6.21.5
> -rw-r--r--  1 root root  813610 2007-06-19 15:53 
> System.map-generic-smp-2.6.21.5-smp
> -rw-r--r--  1 root root 1232918 2007-06-19 16:23 
> System.map-huge-2.6.21.5
> -rw-r--r--  1 root root 1252098 2007-06-19 15:58 
> System.map-huge-smp-2.6.21.5-smp
> -rw-r--r--  1 root root 1060243 2007-12-21 12:35 System.map.2.6.23.12
> -rw-r--r--  1 root root     512 2007-12-20 04:51 boot.0800
> lrwxrwxrwx  1 root root      16 2007-12-21 11:37 config -> 
> config.2.6.23.12
> -rw-rw-r--  1 root root   65742 2008-01-11 15:53 config-2.6.18-xen
> -rw-r--r--  1 root root   72738 2007-06-19 16:18 
> config-generic-2.6.21.5
> -rw-r--r--  1 root root   72764 2007-06-19 15:53 
> config-generic-smp-2.6.21.5-smp
> -rw-r--r--  1 root root   72643 2007-06-19 16:23 config-huge-2.6.21.5
> -rw-r--r--  1 root root   72669 2007-06-19 15:58 
> config-huge-smp-2.6.21.5-smp
> -rw-r--r--  1 root root   56904 2007-12-21 12:34 config.2.6.23.12
> -rw-r--r--  1 root root    5040 2007-06-10 02:09 diag1.img
> lrwxrwxrwx  1 root root      15 2007-12-21 11:37 latest_smp 
> -> linux-2.6.23.12
> -rw-r--r--  1 root root 2743736 2007-12-21 12:34 linux-2.6.23.12
> -rw-------  1 root root  118272 2008-01-10 15:22 map
> -rw-r--r--  1 root root 2751320 2008-01-04 14:41 ndiskernel
> -rw-r--r--  1 root root 7526897 2008-01-11 15:53 
> vmlinux-syms-2.6.18-xen
> lrwxrwxrwx  1 root root      29 2007-12-20 04:43 vmlinuz ->
> vmlinuz-huge-smp-2.6.21.5-smp
> lrwxrwxrwx  1 root root      18 2008-01-11 15:53 vmlinuz-2.6-xen ->
> vmlinuz-2.6.18-xen
> -rw-r--r--  1 root root 3001674 2008-01-11 15:53 vmlinuz-2.6.18-xen
> -rw-r--r--  1 root root 1937944 2007-06-19 16:18 
> vmlinuz-generic-2.6.21.5
> -rw-r--r--  1 root root 2087960 2007-06-19 15:53 
> vmlinuz-generic-smp-2.6.21.5-smp
> -rw-r--r--  1 root root 4097784 2007-06-19 16:23 vmlinuz-huge-2.6.21.5
> -rw-r--r--  1 root root 4417112 2007-06-19 15:58 
> vmlinuz-huge-smp-2.6.21.5-smp
> 
> 
> So....please...
> 
> Any Help???/
> 
> Thanks
> 
> Miguel
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
> 

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