* Alexey (aluka...@alukardd.org) wrote: > Hello, > > On 2016-01-16 02:24, Eric Blake wrote: > >On 01/12/2016 05:11 AM, Dr. David Alan Gilbert wrote: > > > >>>Tell me please right way to append zeros to "BIOS (ia32) ROM Ext. > >>>(137*512)" > >>>file? > >> > >>I'd use dd; something like: > >> dd if=/dev/zero bs=1 count=18944 >> theromfile > >>I think that should do it (203264-184320=18944) > > > >Or simpler: > > > >truncate --size=203264 theromfile > It's great! I have successfully did migration of VM from qemu 2.3.0 to qemu > 2.5.0. > > But when I try migrate to another side I got error: > qemu-system-x86_64: error while loading state for instance 0x0 of device > 'fw_cfg' > qemu-system-x86_64: load of migration failed: No such file or directory > > Is it possible to do this migration?
Backwards migration doens't get much upstream testing; it looks like this is the same as: https://bugs.launchpad.net/qemu/+bug/1536487 Dave > Regards, > Alexey Mochkin. -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
