How to shrink a HAMMER partition without data loss?

Aaron LI aly at
Wed Sep 27 15:23:48 PDT 2017

On Wed, 2017-09-27 at 19:32 +0800, Aaron LI wrote:
> I'm running DragonFlyBSD on a VPS, with partition scheme of boot(UFS) +
> swap + root(HAMMER) (all these 3 partitions are located in a BSD slice).
> I want to shrink the root partition (HAMMER filesystem) in order to make
> room for a bigger dump partition (*), as well as for other tests.  How
> can I achieve this without data loss?

I found a discussion about resizing HAMMER filesystem on this list in
2013 [1], and Dillon have summarized the deficiencies and best features
of HAMMER1 [2].

According to the discussion there, a HAMMER1 filesystem cannot be
resized.  May be HAMMER2 will support resizing.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: This is a digitally signed message part
URL: <>

More information about the Users mailing list