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xen-users
Re: [Xen-users] any Install howto for FreeBSD as domU with netbsd as dom
The way the initial memory space gets setup there is no way MFS could
work. It wasn't an anticipated use. I guess somewhere either in FreeBSD
GNATS or xen's bugzilla there should be i386-xen FreeBSD bugs filed for
me to track.
-Kip
On 11/14/05, Chris Brookes <cbrookes@xxxxxxxxx> wrote:
On 13/11/05, Rainer Brinkmöller <rainer.brinkmoeller@xxxxxx> wrote:
> (http://www.netbsd.org/Ports/xen/howto.html
)? Is there a special FreeBSD
> kernel (like freebsd-domU and freebsd-instll)
I have been trying to build a freebsd53-domu-install image, so far
without much luck. I took the boot.flp from FreeBSD5.3-RELEASE
,
mounted it, and took out the mfsroot.gz file, which I unzipped.
I first built a FreeBSD 5.3 kernel using Kip's instructions, which
managed to spring to life as a DOMU with no issues, both obviously it
wouldn't boot or do much beyond print device info.
Next, I compiled a new kernel with MD_ROOT_SIZE and MD_ROOT set, and
then used the instructions here:
(
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=4169710+0+archive/2005/freebsd-questions/20050327.freebsd-questions)
... to try and embed my mfsroot in to the kernel. This worked fine,
well, the root file went in to the kernel anyway. When booting the
newly create image (using
"vfs.root.mountfrom=ufs:md0,boot_verbose=yes" on the command line) ..
the domain crashes immediately and I get no output. Both my Xen and
FreeBSD knowledge are a bit light at this time, so I didn't go much
further with this yet.
I also discovered this document:
http://ezine.daemonnews.org/200211/monolithic-kernel.html, describing
how to link a root file system in to a compiled kernel. I read through
the simple patch that modifies sys/md/md.c and a couple of other
things, and it looked easy enough, so I manually applied the patch to
the 5.3 xen kernel source, and followed the instructions. I ended up
with another kernel + root image that looked good, but again it
wouldn't boot as a domU, and blew up without printing any console
messages (that I could see when I launched it with xm create)
Has anyone else done this already, or am I trying to do something
that's just not possible?
Regards
Chris
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http://lists.xensource.com/xen-users
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