On Wed, 2026-04-01 at 08:04 +0200, Marta Rybczynska via lists.openembedded.org 
wrote:
> On Tue, Mar 31, 2026 at 9:35 PM Ankur Tyagi <[email protected]> wrote:
> > On Wed, Apr 1, 2026 at 4:30 AM Marta Rybczynska via
> > lists.openembedded.org <[email protected]>
> > wrote:
> > > 
> > > Hello all,
> > > As mentioned on the call today, I have an issue in a configuration with 
> > > bitbake-setup, oe-core-master fragments and runqemu:
> > > 
> > > $ runqemu qemux86-64
> > > runqemu - INFO - Running MACHINE=qemux86-64 bitbake -e  ...
> > > runqemu - WARNING - Couldn't run 'MACHINE=qemux86-64 bitbake -e  ' to 
> > > gather environment information, maybe the target wasn't an image name, 
> > > will retry with virtual/kernel as a target:
> > > ERROR: A builtin fragment 'machine/qemux86-64' is used while MACHINE has 
> > > already got an assignment.
> > > Please either disable the fragment or remove the value assignment.
> > 
> > drop "qemux86-64" argument, it is not needed since the machine config
> > fragment is set.
> > "runqemu core-image-minimal" should succeed.
> 
> Hello Ankur,
> This leads us to another problem (also happens if I remove the fragment):
> 
> $ runqemu
> 
> runqemu - INFO - Running bitbake -e  ...
> runqemu - ERROR - .zst images are only supported with snapshot mode. You can 
> either use the "snapshot" option or use an uncompressed image.
> runqemu - INFO - Cleaning up
> runqemu - INFO - Host uptime: 17100244.13

Try "runqemu snapshot" :)

We should find a way to fix the MACHINE= issue. We did briefly remove
the support for using bitbake -e entirely but it was requested we put
that back.

The snapshot message was added recently to cleanly support compressed
images (also relatively new) but obviously the new user interface to it
could use some improvement.

Cheers,

Richard
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