Re: Save qemu state

[Peter Maydell]

On Wed, 1 Dec 2021 at 14:14, Динар Талибуллин <dinartal@gmail.com> wrote:
>
> Hello. Is it possible to save qemu state if image is in *. elf format?
> I tried to do it in qemu monitor, but it require qcow2 format

You need QEMU to know about one disk which is in qcow2 format,
so it can save the state there, but that disk doesn't actually
have to be attached to the emulated machine. This blog post has
a note on how to do that:
https://translatedcode.wordpress.com/2015/07/06/tricks-for-debugging-qemu-savevm-snapshots/
(look for the bit starting "If the QEMU system you’re trying to debug
doesn’t have a disk image at all".)

-- PMM