Great for the 2.6 kernel !
I looked at the ML archive this afternoon and only seen that
it was not working, I might have missing an announce for that.
For the rest, I will first test if I really need differents kernels for
differents machines !
Just one more question : Can I use the cvs version of the rescue CD tools
only on the machine on which I create the ISO, and keeping 1.36.3 stable
versions on the other ones (from which I only copy "roottree") ?
I don't really like having cvs versions of software on my servers as it
is not really easy to keep up to date... :)
Thanks a lot for all your job !
Yann
Kern Sibbald a écrit :
On Friday 27 May 2005 17:14, Yann Cézard wrote:
Hi list !
I have some questions concerning the creation of the boot CD for bacula
in case of
multiple hosts. If I have correctly looked at the created iso, in fact
only the machine
on which the iso has been created will have its kernel and binaries on
CD, right ?
Yes. However, the disk can boot on any machine with the same basic
architecture.
It is OK when all the backuped machines share the same
kernel/configuration (so
which have quite the same hardware) but it should be wrong when having
differents
machine types (like somes using specific RAID drivers, something like
that I mean).
Am I still right at this point ?
The disk captures the state of a single system. However, what is important in
the caputured state when recoverying after booting is the
bacula-<machine-name> directory.
I run the rescue make on all my machines, then transfer each of the bacula-xxx
directories to a single disk (as documented in the manual if I am not
mistaken), and then I have a boot disk that can recover all my machines. The
machine on which it was made has the bacula-xxx directory in memory. If you
want to recover a different machine, you will need to copy the appropriate
directory into memory to recover -- or run it directly from the CDROM.
Isn't there a way to have a boot CD allowing to choose between different
kernels
(one per machine) at boot time, like almost every distros installation
CD (which offers
differents flavors, a rescue mode...) ?
If you have multiple kernels loaded on a given machine, the disk will use the
one that is running. You can override it by setting the KERNEL variable in
the makekernel file.
If you want different kerenels for each machine, either you need to
significantly increase the complexity of the scripts (pretty simple at the
moment), or much simpler, you simply make a separate boot disk for each
machine.
Does someone has already done some work on this ?
I think that such a feature would be a good idea, perhaps something to
look at when
the 2.6 kernels booting from CD problem has been resolved ;)
The 2.6 kernel boot from CD has been resolved for several weeks. It is in the
rescue project or module of the Bacula CVS -- it is no longer in the Bacula
source tree, but in its own tree. The new stuff is not yet documented ...
Cheers,
Yann
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