On Fri, Mar 18, 2016, 4:55 AM Neal Becker <ndbecker2@xxxxxxxxx> wrote:
Chris Murphy wrote:
> On Wed, Mar 16, 2016 at 11:20 AM, Neal Becker <ndbecker2@xxxxxxxxx> 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
Did you check the Btrfs Wiki or FAQ? Where would you expect to see it?
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.
Where should the warning go? How is the installer's swap partition default insufficient?
You can reduce the size of the Btrfs volume (online shrink is safe, there is no such thing as offline resize with Btrfs), and add a partition in the resulting free space. After partitioning use partprobe so the kernel becomes aware of the change, or reboot.
Chris Murphy
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