Re: libguestfs: fix for checking perl modules

[Richard W.M. Jones]

On Tue, Apr 28, 2009 at 11:21:59AM +0100, Luciano Miguel Ferreira Rocha wrote:
>  Another patch, this fix invoking make-initramfs.sh and
>  update-initramfs.sh.
>  
>  On a normal make (normal in RHEL 5.3), $(builddir) is empty.
>  Automake/conf uses $(top_builddir) instead.
>  
>  -------------- 8< --------------
>  --- a/Makefile.am
>  +++ b/Makefile.am
>  @@ -70,11 +70,11 @@ $(INITRAMFSIMG) $(VMLINUZ): initramfs/fakeroot.log
>   initramfs/fakeroot.log: make-initramfs.sh.in
>          -mv $(INITRAMFSIMG) $(INITRAMFSIMG).bak
>          -mv $(VMLINUZ) $(VMLINUZ).bak
>  -       if ! bash $(builddir)/make-initramfs.sh; then rm -f $@; exit 1;
>          fi
>  +       if ! bash $(top_builddir)/make-initramfs.sh; then rm -f $@; exit
>  1; fi
>   
>   $(INITRAMFSIMG): initramfs/fakeroot.log daemon/guestfsd
>          rm -f $@
>  -       bash $(builddir)/update-initramfs.sh
>  +       bash $(top_builddir)/update-initramfs.sh
>          touch $@
>   
>   # Tests.  These are auto-generated from the test descriptions.
>  -------------- 8< -------------- 
Thanks - applied.

You're trying to compile libguestfs on RHEL 5.3?  That's entering new
territory.

>  I have one problem when creating the initramfs, though. If I run the
>  make as normal user, after the 'yum install' make fails with:
>    chroot: cannot run command `chmod': No such file or directory
>  
>  This is caused by ldconfig calls under yum fail. Probably because
>  ldconfig is statically compiled and fake* don't work with that? 
Which version of fakeroot and fakechroot do you have?  You need a very
recent fakechroot (2.9 + patches -- see the Fedora Rawhide package),
otherwise nothing will work.

>  When running make as root, the ldconfig calls don't fail, but
You really don't want to be running 'make' as root.  There be dragons!
Or at least a good way to mess up your machine.

Rich.

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libguestfs: fix for checking perl modules

[Richard W.M. Jones]

On Tue, Apr 28, 2009 at 11:39:23AM +0100, Richard W.M. Jones wrote:
>  Which version of fakeroot and fakechroot do you have?  You need a
> very
>  recent fakechroot (2.9 + patches -- see the Fedora Rawhide package),
>  otherwise nothing will work. 
This one:

http://cvs.fedoraproject.org/viewvc/devel/fakechroot/

Rich.

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libguestfs: fix for checking perl modules

[Luciano Miguel Ferreira Rocha]

On Tue, Apr 28, 2009 at 11:39:23AM +0100, Richard W.M. Jones wrote:
>  You're trying to compile libguestfs on RHEL 5.3?  That's
> entering new
>  territory. 
Yes. :)

A patch that I'm not sending is changing futimens to futimes. I'll
probably change configure to test for it and do a conditional
compilation. But I don't have the time for that now.

>  > I have one problem when creating the initramfs, though. If I run
> the
>  > make as normal user, after the 'yum install' make fails with:
>  >   chroot: cannot run command `chmod': No such file or directory
>  > 
>  > This is caused by ldconfig calls under yum fail. Probably because
>  > ldconfig is statically compiled and fake* don't work with that?
>  
>  Which version of fakeroot and fakechroot do you have?  You need a very
>  recent fakechroot (2.9 + patches -- see the Fedora Rawhide package),
>  otherwise nothing will work. 
I've used the packages from rawhide:
fakeroot-1.12.2-21
fakechroot-2.9-20

The %checks were OK. I'll see if I can find some problem with those
packages next.

Regards,
Luciano Rocha

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libguestfs: fix for checking perl modules

[Richard W.M. Jones]

On Tue, Apr 28, 2009 at 11:52:17AM +0100, Luciano Miguel Ferreira Rocha wrote:
>  fakechroot-2.9-20 
You could try 2.9-22 which includes the FAKECHROOT_CMD_SUBST patch.
This allows us to substitute for commands like /sbin/ldconfig which
are statically linked.

http://cvs.fedoraproject.org/viewvc/devel/fakechroot/fakechroot.spec?revi...

Having said that, even if /sbin/ldconfig fails, it shouldn't cause yum
(or make) to exit with an error.  It's possible that the older version
of yum in RHEL 5.3 behaves differently and exits if a %post script
fails (which newer versions from Rawhide certainly don't do).

In that case you could try (as a gross hack) ...

  febootstrap $modules [etc] ||:

Rich.

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