Re: gptzfsboot grew a lot after skein support was added; need knob to control bloat

From: Julian Elischer <julian_at_freebsd.org>
Date: Sat, 28 Jan 2017 21:43:12 +0800
On 28/1/17 4:16 am, Ngie Cooper wrote:
>> On Jan 27, 2017, at 09:05, Warner Losh <imp_at_bsdimp.com> wrote:
> ...
>
>> I'm curious why you can't find the space for a bigger partition?
>> Almost all drives these days are partitioned with a little wasted
>> space, and that wasted space should be more than enough to cover us
>> here. Also, most drives have a swap partition that can be shrunk a
>> trivial amount to get space for this...
> Unfortunately, in my infinite wisdom (IIRC) I put the zfs partition before the swap partition.
>
> We have a similar problem at work with sys/boot unfortunately, but that's a side discussion for another time/place.
>
> Thank you for the idea though -- I'll check when I get back to work.

at $JOB we are just testing a script that expands the root zfs 
partition on in-field appliances by shaving a bit off swap and 
cannibalising a small data partition we don't really use. I see we 
only left 64K for the boot part. It's big enough for us for now, but 
possibly we should fix that as well.
We have a mirror setup for system disks so we have the ability to take 
each system drive offline one at a time and rearrange it and then 
re-add the root partition to the mirror.
What are the chances a regular gpt+ZFS (no encrypt) bootblock will 
grow over 64K?


>
> -Ngie
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Received on Sat Jan 28 2017 - 12:43:25 UTC

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