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Re: Slackware vanilla kernel for domU in NetBSD dom0



On Tue, 29 Mar 2011 12:44:53 -0700
Dustin Marquess <dmarquess%gmail.com@localhost> wrote:

> On Tue, Mar 29, 2011 at 12:35 PM, Gerard Lally <gerard%netmail.ie@localhost>
> wrote:
> > While in Slackware I compiled a vanilla kernel (2.6.38.2) with
> > all the Xen options enabled. I then copied the resulting vmlinuz
> > kernel in Slackware's /boot directory to / in NetBSD.
> 
> You probably need the initrd too!
> 
> > I start the Slackware domU as follows:
> >
> >
> > kernel = "/vmlinuz"
> > memory = 768
> > name = "slackware-domu"
> > vif = [""]
> > vif = ["bridge=bridge0"]
> > disk = ["phy:/dev/wd0f,sda2,w", "phy:/dev/wd0j,sda5,w",
> >        "phy:/dev/wd0k,sda6,w", "phy:/dev/wd0l,sda7,w",
> >        "phy:/dev/wd0m,sda8,w", "phy:/dev/wd0n,sda9,w" ]
> > root = "/dev/sda2"
> > extra = "xencons=tty1"
> >
> >
> > Note:
> >
> > wd0f is Slackware's /
> > wd0j is Slackware's swap
> > wd0k is Slackware's /tmp
> > wd0l is Slackware's /usr
> > wd0m is Slackware's /var
> > wd0n is Slackware's /home
> >
> > However, I am getting a kernel loader error.
> >
> > Am I supposed to copy the vmlinuz vanilla kernel to NetBSD's /
> > directory and keep it in Slackware's /boot directory as well?
> 
> Yes.  You either need to copy the kernel+initrd to somewhere local on
> the NetBSD drive(s), or use pygrub.
> 
> bootloader = 'pygrub'
> 
> And then comment-out the kernel line.

Thank you. I followed the Slackware instructions and created an initrd
as follows:

mkinitrd -c -k 2.6.38.2-smp -m ext4 -f ext4 -r /dev/sda2

This created an initrd.gz file in /boot. I added the relevant line to
lilo.conf and ran lilo and Slackware still boots properly.

I then copied this initrd.gz file to / in NetBSD.

Do I need to reference this file in the domU configuration file or is
the kernel reference line enough? I still get the following error:

Error: (2, 'Invalid kernel', 'xc_dom_find_loader:no loader found\n')

I am not sure if my physical disks are exported correctly so perhaps
this is the problem?

I haven't looked into pygrub yet.

-- 
Gerard Lally

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