zfs discuss - Jul 2007 - Helpful Newbie ZFS Build Tip

OK - here''s some info for those of you just starting out with zfs from
the coding/building level.  I struggled for many days walking down the path of
install specific snv_xx release -> build code of snv_xx release with nightly
-> install kernel only with cap eye Install.

While this all worked and I could boot in most cases with my newly built kernel,
zfs would not work correctly, the most common error was "internal error:
out of memory".

IT WAS NOT UNTIL DOING A FULL BFU install that zfs worked correctly.

I was a little shocked by this as my source and the original install where at
the same build level.  From the docs it seemed as though if your at the same
build level you didn''t need the full BFU treatment, NOT SO.

So save yourself some time and always go for the BFU the first time you build
fresh and plan on using zfs.

I assume the issue is that the userland zfs tools need to match the kernel build
(maybe a debug vs non-debug issue)? For veterans zfs folks - please correct me
if I am missing some subtlety.

Cheers - nola
 
 
This message posted from opensolaris.org

Rob Nelson wrote:
> OK - here''s some info for those of you just starting out with zfs
from the coding/building level.  I struggled for many days walking down the path
of install specific snv_xx release -> build code of snv_xx release with
nightly -> install kernel only with cap eye Install.
> 
> While this all worked and I could boot in most cases with my newly built
kernel, zfs would not work correctly, the most common error was "internal
error: out of memory".
> 
> IT WAS NOT UNTIL DOING A FULL BFU install that zfs worked correctly.
I''d generalise this to be, never use cap-eye Install until you really 
really really know what you are doing and are 100% certain that your 
changes don''t impact anything in userland.

You are correct that part of zfs lives in userland and there is intimate 
knowledge between the user and kernel parts.

--
Darren J Moffat