Re: CentOS5 and XFS

barsalou wrote:
> Unfortunately, CentOS5 (and I assume RedHat, et al) doesn't allow me to
> install using an xfs filesystem on the first install.
>
> One of the first things that needed doing was to ensure that I had
> modules for xfs.
>
> So what I ended up doing is making a 2G partition and installed
> directly to that. No swap created...we aren't doing anything fancy, so
> we didn't need any at first.
>
> After I installed a very basic OS (I didn't want it to be bigger than
> 2G), I added the kmod-xfs-xen modules (this is going to be a Xen
> machine, too).
>
> Then, I created xfs partions. One 1G partition to hold / (root) and
> some various other directories and an LVM that had /home(1G), /var(1G),
> /usr(3G), /tmp(1G).
>
> I then mounted my new root partition as /newroot and copied over
> everything except for the four above. Now I have a copy of my old ext3
> root (/) partition on the xfs partition. I then made mount points on
> /newroot for the four partions above and mounted them...then copied the
> data from the old / (root) partition.
>
> I then modified the /newroot/etc/fstab to point to the new root
> partition that would be xfs.
>
> Here is the important part for CentOS5:
>
> mkinitrd -f --fstab=/newroot/etc/fstab /newroot/boot/<imagefilename> `uname-r`
>
> What this does is setup the initrd image so that it has the appropriate
> modules (like xfs, for example) and mounts the root partition properly.
> If you don't do this last step, you'll end up with a kernel panic
> and a few hours of chasing down the above command.
>
Mike,

Could you have compiled the xfs fs statically into the kernel and not
used the initrd?

Jon
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Received on Fri Nov 16 02:05:55 2007