Re: [opensuse-factory] btrfs root - why so many subvolumes?
On Wed, 19 Oct 2016, Anton Aylward wrote:
...
YMMV, but those ancillary repositories for your specific interests - photography is one of mine - are important. Probably more important that BtrFS or Ext4 for your RootFS.
...
I'm in a similar situation. I've stuck with 13.1 for a long time because it works. I have an admin and backup/recovery system in place. I'm moving forward to gain access access to repositories with more up to date applications (photography in particular). As you've outlined, in my case ext4 versus btrfs is not a really important decision. I think I will reinstall a rootfs with ext4. Some of the features of btrfs are nice, but they're not central to my requirements. If I stick with ext4 I can then continue with my existing backup/recovery practices. I'm going to slow down and look at Leap versus Tumbleweed and more carefully consider my needs going forward, but I will likely stick with ext4 for no no matter which way I go. If I was starting from nothing, I might stick with btrfs, but I'm looking for a simple step forward, so ext4 suits me better. This thread has provided heaps of knowledge that I think has helped me make an informed decision. Thankyou to all that have contributed. One last thing: it would be good if there was a pointer to some comprehensive explanation of all these btrfs rootfs conventions around the @ based subvolumes. I think @ helps make snaphots work by moving the actual root to @, or maybe its just a naming thing. This would be useful info for anyone attempting replicate or alter the root subvolumes. Other distros also appear to be using @, but it's unclear if they are using it in exactly the same way. Thanks again. Regards, Michael -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
On Wed, Oct 19, 2016 at 4:59 AM, Michael Hamilton <michael@actrix.gen.nz> wrote:
One last thing: it would be good if there was a pointer to some comprehensive explanation of all these btrfs rootfs conventions around the @ based subvolumes. I think @ helps make snaphots work by moving the actual root to @, or maybe its just a naming thing. This would be useful info for anyone attempting replicate or alter the root subvolumes. Other distros also appear to be using @, but it's unclear if they are using it in exactly the same way.
+1 on this. I spent way too much time trying to find out how "@-volumes" work ( see [1] ). What you need to do is mount the 'subvolid=0' subvolume ( it's not mounted by default ) and create the subvolume under that root. Them you add it to /etc/fstab. It would be really useful if there was a tool outside of yast which was able to create these volumes and add them to /etc/fstab. Right now it's a pain to automate this provisioning using Puppet. Thanks, Robert [1]: http://unix.stackexchange.com/questions/316266/how-can-i-create-a-btrfs-subv... -- http://robert.muntea.nu/ -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
Hello, On Oct 19 10:31 Robert Munteanu wrote (excerpt):
It would be really useful if there was a tool outside of yast which was able to create these volumes and add them to /etc/fstab.
On Oct 18 10:10 I had written https://lists.opensuse.org/opensuse-factory/2016-10/msg00397.html Kind Regards Johannes Meixner -- SUSE LINUX GmbH - GF: Felix Imendoerffer, Jane Smithard, Graham Norton - HRB 21284 (AG Nuernberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
Hi, On Wed, Oct 19, 2016 at 12:31 PM, Johannes Meixner <jsmeix@suse.de> wrote:
Hello,
On Oct 19 10:31 Robert Munteanu wrote (excerpt):
It would be really useful if there was a tool outside of yast which was able to create these volumes and add them to /etc/fstab.
On Oct 18 10:10 I had written
https://lists.opensuse.org/opensuse-factory/2016-10/msg00397.html
That's a good starting point, and I echo your suggestion of providing an 'official' method for managing such subvolumes. Robert -- http://robert.muntea.nu/ -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
participants (3)
-
Johannes Meixner -
Michael Hamilton -
Robert Munteanu