>>> On 8/17/2016 at 06:14 AM, Jorge Fábregas <jorge.fabre...@gmail.com> wrote: > I'm looking forward to btrfs on SLES 12; specifically its snapshot
I'm hoping that when people are saying "SLES12" they are really meaning "SLES12 SP1 or later." SLES12 GA has been out of support for a while now. > capabilities and how we can use it to perform system rollbacks (the > integration of zypper, snapper & GRUB2 to accomplish this). These capabilities are the main reason SUSE invested so much time and effort into getting btrfs solid enough to use. > Hmm, now that I mention GRUB2, Is this system rollback functionality & > integration with the other tools supported with zIPL? With SLES12, zipl really doesn't play much of a role. You still need it, but it only gets executed when grub2 gets [re-]installed. That's why you won't see a /etc/zipl.conf any more. So, to answer your question, don't worry about whether zipl supports system rollback. It's not a consideration. Something that _is_ a consideration are btrfs subvolumes. The way the rollback feature works, everything that is in a subvolume of / is _not_ included in the snapshots and hence cannot be rolled back. That's why you see things like /var/log, /home, /opt and so on as subvolumes. So, don't go creating subvolume without keeping in mind they won't be part of a rollback. Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
