Arnau Bria wrote:
Hi all,
I've added a i386 repo to my x86_64 nodes and I'm seeing that, when
installing the node, yum sometimes installs many i386 packages and
sometimes not.
So, I'd like to set yum to install always x86_64 and then i386 (if
needed or specified).
Reading yum.conf man I saw :
multilib_policy Can be set to ’all’ or ’best’. All means install all
possible arches for any package you want to install. Therefore yum
install foo will install foo.i386 and foo.x86_64 on x86_64, if it is
available. Best means install the best arch for this platform, only.
so seems that is the param I want. Yum tries to install x86_64 but if I
specify foo.i386 it will install foo.i386 too.
But then I noticed a strange behaviour (bug? feature?) when installing
groups of packages. If multilib_policy is set to best, i386 packages
from the group are not installed:
# grep multilib_policy /etc/yum.conf
multilib_policy=best
# yum groupinstall glite-WN
[....]
No packages in any requested group available to install or update
# grep multilib_policy /etc/yum.conf
#multilib_policy=best
# yum groupinstall glite-WN
[...]
Dependencies Resolved
================================================================================================================================================================================
Package Arch
Version Repository
Size
================================================================================================================================================================================
Installing:
dpm i386
1.7.4-7sec.sl5 gLite-WN-3.2-updates
3.9 M
dpm-devel i386
1.7.4-7sec.sl5 gLite-WN-3.2-updates
609 k
dpm-libs i386
[...]
so here comes some questions:
1.-) I'm not a "yum group" expert, but a group is a list of packages to
be installed, so, why is yum bypassing i386 packages? Cause I can
install all missing packages "by hand".
Like the man page says, when multilib_policy is set to "best" it will
only install x86_64 when both versions are available but neither is
installed. Since you already seem to have dpm.x86_64 installed, yum has
nothing to do in your first test since you told it to only install the
best arch available. When you made multilib_policy default back to
"all" it noticed that the i386 version was not installed and offered to
install it for you.
is it a problem in group's creation?
No.
2.-) Who may I configure yum so it install x86_64 packages always, and
only i386 if needed or specified?
Set multilib_policy to "best" and yum will install ix86 packages only
when x86_64 versions are unavailable. You cannot specify which package
architecture to install in a yum group, so you must instead install the
ix86 versions yourself when both are available to yum while
multilib_policy is set that way.
--
Garrett Holmstrom
University of Minnesota School of Physics and Astronomy
Systems Staff
