[fedora-virt] xen 4.0.0 build/install notes/bugs
A few issues I hit trying to build/install the latest xen from the
myoung dom0 repo:
1) [root@librescu SPECS]# rpmbuild -bb xen.spec kernel.spec
error: Failed build dependencies:
/usr/include/gnu/stubs-32.h is needed by xen-4.0.0-0.7.fc12.src
The trick here seems to be glibc-devel is required, but the 32-bit
version. I was building on x86_64. Installing the 32-bit version gets
it to build, but is that the right thing to do? If so, can that be
specified as a buildrequires?
2) /root/rpmbuild/BUILD/xen-4.0.0/tools/ioemu-dir/texi2pod.pl
qemu-doc.texi qemu.pod
pod2man --section=1 --center=" " --release=" " qemu.pod > qemu.1
/bin/sh: /usr/local/bin/pod2man: /usr/local/bin/perl: bad interpreter:
No such file or directory
A simple symlink from /usr/bin/perl to /usr/local/bin/perl does the
trick there. Fedora's been shipping a usable perl for at least several
releases. :) I presume a script needs to be patched to use system perl.
3) During xen RPM install:
Stopping xend daemon: [ OK ]
Starting xend daemon: [FAILED]
warning: %post(xen-4.0.0-0.7.fc12.x86_64) scriptlet failed, exit status 1
log says:
[2010-05-04 12:41:32 23773] ERROR (SrvDaemon:356) Exception starting
xend ((38, 'Function not implemented'))
Traceback (most recent call last):
File
"/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDaemon.py", line
342, in run
xinfo = xc.xeninfo()
Error: (38, 'Function not implemented')
It looks like a xend restart can't happen from 3->4, so perhaps just
handle the upgrade scenario gracefully? xend starts fine after a
reboot, but we shouldn't kick out in %post.
4) grub not properly updated
I'm not sure why or if this is a "kernel-xen" problem, but grub got
hosed. I previously had a kernel and xen kernel installed, each with
grub entries. I updated the kernel and xen with "rpm -Uhv" and:
a) reboot hung on the 'stand by for reboot' message.
b) grub.conf got overwritten with only the new entry for the new
xen-aware kernel, but as a standard kernel entry, not with 'kernel
/xen.gz' and 'module' for kernel & initramfs.
c) the other kernels got erased
d) grub dropped into its shell on reboot
I brought the kernel up as a regular kernel (just from muscle-memory, I
forgot to kernel xen, but nice that it works both ways) and ran dracut
and grub-install, hand-fixed menu.lst and then all was well.
5) qemu-dm moved from /usr/lib64 to /usr/lib - dunno if this is correct,
if I have the right version, etc.
------ end of issues ------
Those said, my dom0 appears to be up fine now. I just installed a
Nexenta DomU on hvm successfully, working on getting pvm working. Thanks
for all the good work.
-Bill
--
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BFC Computing, LLC
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