Hey Mark,
On Thu, Dec 15, 2016 at 11:16:04AM -0700, Mark Post wrote:
> >>> On 12/15/2016 at 12:26 PM, Marcy Cortes <marcy.d.cor...@wellsfargo.com>
> >>> wrote:
>
> > Hey Mark Post,
> >
> > You wrote this nice guide to doing it in SLES 11.
> > Do you have a SLES 12 process?
>
> No. If you did NOT use btrfs for your file system, then the process
> would be pretty much the same, except for the zipl part. That would
> be replaced with a grub2-install step.
>
> If you did use btrfs, then you can simply add another volume to the
> file system with "btrfs-device add". Make sure you use YaST to bring
> the volume online and format it, or you'll need to run mkinitrd
> manually.
>
AFAIK its the same for btrfs as for the first case you mentioned. If you
change rootfs-dependencies, you'll need to make sure you rebuild the
"stage1"-initramfs.. so call grub2-install. And then you'll also have to
rebuild the normal initramfs.
Reason is simple. If your boot-fs is btrfs (normally the fs where /boot
is located) and it can not be completely assembled from within the
"stage1"-grub environment (which is located at /boot/zipl), you'll not
be able to load the normal kernel and initramfs. And AFAIK, that is the
default SLES12 setup - or maybe that changed with SP2, I have not
installed a fresh SP2, just upgraded.
Beste Grüße / Best regards,
- Benjamin Block
--
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