Am Sonntag, 11. September 2016, 21:56:07 CEST schrieb Imran Geriskovan: > On 9/11/16, Duncan <1i5t5.dun...@cox.net> wrote: > > Martin Steigerwald posted on Sun, 11 Sep 2016 17:32:44 +0200 as excerpted: > >>> What is the smallest recommended fs size for btrfs? > >>> Can we say size should be in multiples of 64MB? > >> > >> Do you want to know the smalled *recommended* or the smallest *possible* > >> size? > > In fact both. > I'm reconsidering my options for /boot
Well my stance on boot still is: Ext4. Done. :) It just does not bother me. It practically makes no difference at all. It has no visible effect on my user experience and I never saw the need to snapshot / boot. But another approach in case you want to use BTRFS for /boot is to use a subvolume. Thats IMHO the SLES 12 default setup. They basically create subvolumes for /boot, /var, /var/lib/mysql – you name it. Big advantage: You have one big FS and do not need to plan space for partitions or LVs. Disadvantage: If it breaks, it breaks. That said, I think at a new installation I may do this for /boot. Just put it inside a subvolume. >From my experiences at work with customer systems and even some systems I setup myself, I often do not use little partitions anymore. I did so for a CentOS 7 training VM, just 2 GiB XFS for /var. Guess what happened? Last update was too long ago, so… yum tried to download a ton of packages and then complained it has not enough space in /var. Luckily I used LVM, so I enlarged partition LVM resides on, enlarged PV and then enlarged /var. There may be valid reasons to split things up, and I am quite comfortable with splitting / boot out, cause its, well, plannable easily enough. And it may make sense to split /var or /var/log out. But on BTRFS I would likely use subvolumes. Only thing I may separate would be /home to make it easier on a re-installation of the OS to keep it around. That said, I never ever reinstalled the Debian on this ThinkPad T520 since I initially installed it. And on previous laptops I even copied the Debian on the older laptop onto the newer laptop. With the T520 I reinstalled, cause I wanted to switch to 64 bit cleanly. -- Martin -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
