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xen-users
Re: [Xen-users] Building Xen: failure to launch
Richard Bowser wrote:
Hi everyone. I'm a Xen newbie and I'm trying to get
oriented here in the xeniverse. (Can I say that here?) My eventual
goal is to set up multiple virtual xen servers in a minimum number of
physical "boxes". My only knowledge of Xen so far is my careful
reading of the famous paper "Xen - the Art of Virtualization". So I
went to the web and searched Xen out. I discovered that Xen 3.4.0 is
out, so I downloaded it. The 3.4.0 download page had three tarballs
available. One was "Xen 3.4.0 (hypervisor and tools) official source
distribution" and another was "Linux 2.6.18 with Xen 3.4.0 support
source tarball". I chose the third one: "Xen 3.4.0 plus kernel
combined source distribution tarball". This seems good.
If you're still a newbie, just install Xen via aptitude or whatever
your package manager is. The package is called something like
"xen-linux-system". The stable version of the package will install Xen
3.2.1.
Anyway, given the case you really want a newer Xen version, it's
*usually* (tested on Debian) enough to do:
hg clone http://xenbits.xensource.com/xen-3.4-testing.hg xen-3.4-testing
cd xen-3.4-testing
make install
I have two linux environments available to me. My
personal development system runs Ubuntu 9.04. I also have a Fedora
Core 10 system available through school, where I'm working on a PhD.
As of this moment, I have fresh, new xen-3.4.0 directories on both
systems. I have them positioned under /boot on both systems. Thus I
have both a /boot/grub and a /boot/xen-3.4.0 directory in place. So
far I've only successfully built the documentation - which has been a
most informative exercise. Under Fedora 10, I generated the documents
almost without effort. Under Ubuntu I've been given a short course in
roadblocks: It seems Ubuntu 9.04 (Jaunty Jackalope) is
latex-challenged as distributed and I needed to get and install tetex
and graphviz systems. When I did that, I was able to build the
documents with a "make -C docs".
However. my main build "make world" under Ubuntu has become a logical
demolition derby. The first surprise was the error message
"Makefile:21: === libgcrypt not installed: falling back to libcrypto
===" This was very interesting because my Synaptic package manager
tells me libgcrypt11 IS installed. Re-installing it had no effect on
this error message. Also I was confused by the reference
"Makefile:21:" Line 20 of Makefile is ".PHONY: build" Line 21 of my
Makefile just says "build: kernels" (Does anyone know what's going on
here?)
You might have libgcrypt installed, but not libgcrypt-dev (which
includes headers needed for compiling) ??!
At this point, the build process enters a long, slow build
process evidently retrieving the linux kernels and spooling partial
results to `/home/rich/.ketchup/linux-2.6.18.tar.bz2.partial' That
eventually reaches 100% and completes.
The following messages show up:
--2009-06-27 20:50:00-- http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.gz
Resolving www.kernel.org... 149.20.20.133, 204.152.191.37
Connecting to www.kernel.org|149.20.20.133|:80...
connected.
HTTP request sent, awaiting response... 200 OK
Length: 52467340 (50M) [application/x-gzip]
Saving to: `/home/rich/.ketchup/linux-2.6.18.tar.gz.partial'
It starts spooling and then eventually completes. But NOW things get
cryptic:
--2009-06-27 20:54:53-- http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.gz.sign
Resolving www.kernel.org... 149.20.20.133, 204.152.191.37
Connecting to www.kernel.org|149.20.20.133|:80...
connected.
HTTP request sent, awaiting response... 200 OK
Length: 248 [application/pgp-signature]
Saving to: `/home/rich/.ketchup/linux-2.6.18.tar.gz.sign.partial'
0K 100%
25.7M=0s
2009-06-27 20:54:53 (25.7 MB/s) -
`/home/rich/.ketchup/linux-2.6.18.tar.gz.sign.partial' saved [248/248]
gpg: Signature made Tue 19 Sep 2006 09:56:08 PM MDT using DSA key ID
517D0F0E
gpg: Can't check signature: public key not found
ketchup: gpg returned 512
Ketchup seems to check if the kernel has a valid signature. I think I
had that problem before. You could look where the ketchup command
appears in the makefile and add some parameters to disable signature
checking.
ketchup: removing files...
ketchup: Tarball download failed
make[3]: *** [linux-2.6.18/.valid-src] Error 255
make[2]: *** [linux-2.6-xen-intree-install] Error 2
make[1]: *** [install-kernels] Error 1
make: *** [world] Error 2
I'm completely at a loss here. It seems xen was trying to download and
generate the linux kernels - but then something failed, somewhere. I
don't know who thought what didn't work or why. Error 255? Error 2?
Error 1? Can anyone here help me make sense of this? Any insight
would be MOST welcome! It was interesting in that these problems
cleared my previously generated documentation. I'm guessing the build
scripts ran a "make clean" - which cleared my generated documents
BEFORE the downloading failure aborted the build process. That means
that whatever went down failed before my Makefile reached its own "make
-C docs". I'd sure like to know what happened!
-Rich B.
I would really recommend you the simpler installation methods I
mentioned above. The documentation should be build automatically if you
have the necessary latex/tetex packages. But note that I always tested
on Debian lenny.
Best regards
Andreas
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