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Re: [Xen-users] Xen3.0, LSI MegaRaid, Debian


  • To: "Sebastian Ewert" <ewerts@xxxxxxxxxxxxxx>
  • From: "bruno taranto" <btaranto@xxxxxxxxx>
  • Date: Tue, 13 Jun 2006 13:37:22 -0300
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 13 Jun 2006 09:38:01 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hy Sebastian,

Yes... working.. i am using now on Debian.
Use my .config and make the changes as you need.

dcgs0058:~# dmesg |grep mega
megaraid cmm: 2.20.2.6 (Release Date: Mon Mar 7 00:01:03 EST 2005)
megaraid: 2.20.4.7 (Release Date: Mon Nov 14 12:27:22 EST 2005)
megaraid: probe new device 0x1028:0x0013:0x1028:0x016c: bus 2:slot 14:func 0
megaraid: fw version:[521S] bios version:[H430]
megasas: 00.00.02.04 Fri Feb 03 14:31:44 PST 2006
dcgs0058:~#


bruno taranto


On 6/13/06, Sebastian Ewert <ewerts@xxxxxxxxxxxxxx> wrote:
Hi Bruno,

thank you very much for your answer.

I don't have any experience with vanilla kernels under debian. I know that
debian does not patch their kernels a lot (compared to other distros), but a
few patches, that might be important, are also in debian kernels. For
example one, that allows APT to overwrite files that are currently in use.
So I don't know if your config would also work against the debian patched
kernel.

Another reason I would like to stick to debian stock kernels is because of
security updates (with everything I have to do outside APT, I'm a bit lazy
sometimes; I have to admit that to myself)

But don't get me wrong; I really appreciate your detailed post! Really nice
to see that it is possible at least with a vanilla kernel to get Xen and the
LSI adapter to work with each other. But I hope that that is also possible
with the debian patched kernel.


So my question is if somebody knows if there is a way so that I can get the
LSI adapter to work with the Debian Xen kernel.

Thank you in advance...


bruno taranto wrote:
> 1. Get the lastest xen-src.
> 2. copy to your /usr/src/
> 2. tar xzf xen-unstable-src.tgz
> 3. cd /usr/src/xen-unstable-dir/
> 3. make world (be sure your box has internet access to xen get the
> linux-2.6.16 from kernel.org <http://kernel.org>).
> 4. make install
> 5. copy my .config(config-2.6.16-xen-ok) to your
> xen_unstable_directory/linux.2.6.16-xen/ (dont forget to rename to .config)
> 6. at /usr/src/xen-unstable-dir/ run the commands:
> make linux-2.6-xen-config CONFIGMODE=menuconfig (my .config has much trash)
> make linux-2.6-xen-build
> make linux-2.6-xen-install
> depmod 2.6.16-xen
> mkinitrd -o /boot/initrd-2.6.16-xen.img 2.6.16-xen
> 7. dont forget to change your boot loader.
> 8. reboot
>
> On 6/12/06, *Sebastian Ewert* < ewerts@xxxxxxxxxxxxxx
> <mailto:ewerts@xxxxxxxxxxxxxx>> wrote:
>
>     Hello,
>
>
>     Problem: Debian(linux-image-xen-686) Dom0 does not boot from LSI
>     MegaRaid
>
>     I'm sorry, because I don't know if I'm at the right place to ask for a
>     solution for my problem, because it might be Debian related.
>     Nethertheless I
>     try:
>
>     Xen Kernel are in Debian Unstable for a month or so. I'm running an
>     Etch
>     (testing) machine here and I wanted to try out Xen. I followed this
>     guide here:
>
>     http://www.debian-administration.org/articles/396
>
>     The only difference is that I set APT::Default-Release "testing"; in my
>     apt.conf so that the rest of the system stays in etch (just the xen
>     kernels
>     are not in etch).
>
>     In my system is a LSI Megaraid SCSI Controller; there no problem booting
>     from it using the xen-less Debian Kernel. But when I boot up the Xen
>     Kernel
>     I get some IO Error messages about sda (some sectors; especially
>     sector 0).
>     The boot process ends with the message "Waiting for root filesystem" and
>     after a while I'm in BusyBox.
>
>     I tried the same guide from above in a VMware machine (so without
>     complicated hardware) and everything worked out fine.
>
>     I would like to give more boot screen messages but I don't know how
>     I can
>     save them (since the boot process is interupted).
>
>
>     Thank you in advance for any idea or direction where to go...


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