Guys:
I just finished testing the new
feature where you can have compute nodes running a different Linux distro than
the headnode, and it works as advertised. Here's what I did:
1) Populate
/tftpboot/distro/<distro> accordingly
2) Run prep_oscar_repos if using SVN
checkout, otherwise just extract the repository tarballs to /tftpboot/oscar (eg.
the nightly tarballs for trunk) - this will populate /tftpboot/oscar with your
new distro-specific OSCAR RPMs
3) Build a new image choosing the
correct "Package File", "Target Distribution", "Packages
Directory".
etc.
I had a FC5 x86 head and built 2
FC4 x86 compute nodes and all tests passed.
I have yet to try mixed archs, (eg.
x86_64 and i386) but I suspect it should just work.
This currently won't work if the
distroes are drastically different, eg. SUSE Linux + FC5, as some of the scripts
are not adapted to this new feature yet - eg. it might try to execute something
like /etc/init.d/ntpd on SUSE Linux but it should be
/etc/init.d/ntp.
A feature request is to automatically
update the "Package File" and "Packages Directory" when you make changes to
"Target Distribution".
You guys should try it out and see if
any particular combination breaks :-)
Cheers,
Bernard
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