Re: [Xen-users] Xen 3.2 & CentOS

[John Morris <jman@xxxxxxxxxxx>]

Joris, I'm replying on list so that the next person might get the benefit.

The patch probably got munged going through email.  Look at it 
carefully, though, I'm only changing one or two important lines.  The 
most important one is this:
  mv %{buildroot}%{_prefix}/lib/xen/boot %{buildroot}%{_libdir}/%{name} 
# put hvmloader in the right place
Look at the below patch to see where it belongs; it needs to go in after 
'make install-tools install-docs' in the %install section.
On RH, %{_libdir} expands to /usr/lib on 32-bit, and /usr/lib64 on 
64-bit.  Nothing tricky.
Good luck.

   John


> Hi John
>
> I'm really sorry to ask a very dumb question, but I've been trying to 
> apply that patch you wrote and all I am getting is:
> [root@corrin SPECS]# cat xen.patch | patch
> patching file xen.spec
> patch: **** malformed patch at line 4: Summary: Xen is a virtual 
> machine monitor
> I'm sure I'm doing something really n00b but can you please give me a 
> pointer what it is.
> Heaps of thanks
> Joris 

John Morris wrote:
> --[ UxBoD ]-- wrote:
> > http://bits.xensource.com/oss-xen/release/3.2.0/centos-5.1/xen-3.2.0-0xs.centos5.src.rpm 
> >
> > I just built it from source and then installed the built RPM from 
> > /usr/src/redhat/RPMS.  It worked a treat; no more crashes with 32bit 
> > DomUs in a 64bit Dom0 :D
> >   
> UxBoD,
>
> Thanks for this advice; it worked nicely, with only a couple of hiccups:
>
> 1.  Had the same trouble another poster in this thread had with the 
> hvmloader going in the wrong place, or not being picked up by the 
> %files section, anyway.  Hvmloader is actually a statically-linked, 
> 32-bit ELF executable, so it's unclear whether it should go by itself 
> in /usr/lib/xen/boot or with the other 64-bit stuff in 
> /usr/lib64/xen/boot.  I opted for the latter, since it's cleaner, but 
> don't forget to fix your hvm domU config files ('kernel = 
> "/usr/lib64/xen/boot/hvmloader"').  See the patch below.  
> Alternatively, you could put a %if condition to test the arch to fix 
> the %files section.
> 2.  The RPM doesn't fix /etc/grub.conf; be sure to go in there and 
> make sure that the 'kernel' command references the new xen.gz-3.2 
> image installed with the new xen package instead of the old one 
> installed with the kernel-xen RPM, eg.:
>    title CentOS-newxen (2.6.18-53.1.13.el5xen)
>            root (hd0,0)
>            kernel /xen.gz-3.2 dom0_mem=262144
>            module /vmlinuz-2.6.18-53.1.13.el5xen ro root=/dev/dom0/root
>            module /initrd-2.6.18-53.1.13.el5xen.img
>
>
> Thanks again.
>
>    John
>
>
> =========== cut here ================
> --- xen.spec.orig    2008-03-10 21:12:22.000000000 +0800
> +++ xen.spec    2008-03-10 21:41:23.000000000 +0800
> @@ -3,7 +3,7 @@
> Summary: Xen is a virtual machine monitor
> Name:    xen
> Version: 3.2.0
> -Release: 0xs%{?dist}
> +Release: 1xs%{?dist}
> Group:   Development/Libraries
> License: GPL
> URL:     http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html
> @@ -113,7 +113,8 @@
>
> %install
> rm -rf %{buildroot}
> -make XENFB_TOOLS=y XEN_PYTHON_NATIVE_INSTALL=1 DESTDIR=%{buildroot} 
> prefix=/usr install-tools install-docs
> +make XENFB_TOOLS=y XEN_PYTHON_NATIVE_INSTALL=1 DESTDIR=%{buildroot} 
> prefix=%{_prefix} install-tools install-docs
> +mv %{buildroot}%{_prefix}/lib/xen/boot %{buildroot}%{_libdir}/%{name} 
> # put hvmloader in the right place
> mkdir -p %{buildroot}%{_localstatedir}/lib/%{name}/xend-db/domain
> mkdir -p %{buildroot}%{_localstatedir}/lib/%{name}/xend-db/vnet
> mkdir -p %{buildroot}%{_localstatedir}/lib/%{name}/xend-db/migrate
> @@ -183,11 +184,6 @@
> %{python_sitearch}/grub
> %{_libdir}/%{name}
> %{_mandir}/man?/*.?.gz
> -%dir /usr/lib/xen
> -%ifnarch ia64
> -# %dir /usr/lib/xen/boot
> -# /usr/lib/xen/boot/hvmloader
> -%endif
> %{_datadir}/%{name}/*.dtd
> %dir %{_datadir}/%{name}/qemu
> %{_datadir}/%{name}/qemu/keymaps/*
> @@ -222,6 +218,10 @@
> %{_libdir}/*.a
>
> %changelog
> +* Mon Mar 10 2008 John Morris <jman@xxxxxxxxxxx> - 3.2.0-1xs
> +- fix hvmloader location depending on arch
> +- pick up /usr/lib/xen or /usr/lib/xen64 correctly in %files 
> depending on arch
> +
> * Thu Jan 10 2008 Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> - 
> 3.2.0-0xs.centos5
> - Xen 3.2, built from 3.2 tree and heavily modified Centos (RHEL) 
> patches.
> ================== cut here ====================
>
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