Custom Qcow2 Images

Pete Wright pete at
Mon Jul 15 01:31:00 UTC 2019

On 7/14/19 4:59 PM, Allan Jude wrote:
> On 2019-07-14 19:37, Pete Wright wrote:
>> Hey there folks,
>> I am wondering if anyone has any pointers on creating a custom Qcow2
>> FreeBSD that is akin in size to nanobsd.  I have an environment where we
>> need to run a single binary and want to keep our disk image as small as
>> possible.  It will run inside a user-mode Qemu process.  Reading through
>> the nanobsd script it seems that it expects a raw disk for installation,
>> so I do think using the nanobsd script itself well work well.  Has
>> anyone else done something similar?  My goal is to have a disk image
>> that is around 500MB.
>> Thanks in advance!
>> -pete
> I would expect the answer is `poudriere image` with a src.conf with many
> WITHOUT_* knobs to disable things you don't need to get the image down
> in size. There is likely a list of such knobs you could borrow from nanobsd.
Thanks Allan - I hadn't thought of using poudriere in this way, I'll 
give this a shot tonight!


Pete Wright
pete at

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