btrfs doesn't support filesystem swap

Neal Becker ndbecker2 at gmail.com
Fri Mar 18 10:54:51 UTC 2016


Chris Murphy wrote:

> On Wed, Mar 16, 2016 at 11:20 AM, Neal Becker <ndbecker2 at gmail.com> wrote:
>> If I had known that, I might not have chosen btrfs for my filesystems. 
>> Came as a rude surprise when I suddenly needed more swap space, and
>> couldn't do it.
> 
> You might check the FAQ and also the Gotchas list to make sure you're
> not missing something else.
> https://btrfs.wiki.kernel.org/index.php/FAQ
> https://btrfs.wiki.kernel.org/index.php/Gotchas
> ...

Some years ago Fedora promoted btrfs as the next great FS, to replace all 
others.  I never saw this problem mentioned - somewhere there should be a 
warning that if you choose btrfs for all your large FS you might want a 
larger partition set aside for swap.



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