[Rear-users] Cloning problems`

Michael Orlov michael.orlov at amdocs.com
Mon Apr 4 18:35:50 CEST 2011


Hi

On 11-04-04 11:15 AM, Schlomo Schapiro wrote:
>
> > Hi all
> > I'm trying to clone my DL360G6 to x3650M3.
>
> Is this the box with the EFI issues?
>
With the new layout code this issue doesn't exists any more.
>
> > The backup was created, PXE as well, everything is fine.
> > I found three problems:
> >
> >    1. In our environment due to the huge amount of SAN on DL360G6 we
> >       have filtered out all /dev/sd* devices, so disk creation on the
> >       cloning system can't find /dev/sda. To avoid this problem we can
> >       pass "--config "devices{filter=['a|/dev/.*|']}" " parameter to the
> >       lvm commands. It will list all the disk always.
>
> You have to differ between the brandnew layout code and the dr code.
> Unless we know which one you try we won't be able to help you there.
>
> With dr the EXCLUDE and INCLUDE stuff should work, at least I had seen
> some success reports out there. Using lvm to filer out disks is IMHO
> dangerous as ReaR would still try to partition them. Better use the
> EXCLUDE and INCLUDE options till mkrescue only wants to work on the
> disks you mean.
>
I'm using the new layout code. I think that in the clone scenario this 
option should be turned on. May be it is a good idea to make a such 
variable.
>
> >    2. Disk controllers on those machines are different. so the initrd
> >       images suppose to be different. But I didn't found how to tell to
> >       rear to recreate initrd on the cloned machine. I found the scripts
> >       for Suse and Debian to rebuild initramfs in the finalize stage,
> >       but didn't found such a thing for RHEL/Fedora. BTW I think this
> >       one suppose to be default.
>
> then you will see that there is no 17_rebuild_initramfs.sh for Fedora as
> you also found out. If you can tell us how to tell Fedora or RHEL to
> include a driver in the initramfs then it should be easy to write a
> script for that.
>
I'm trying to figure out right now :)


-- 

*Michael Orlov*
System UNIX

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