Re: 'qemu-img create' to backup encrypted qcow2 - ?

2021-08-14 Thread Peter Maydell
On Sat, 14 Aug 2021 at 08:24, lejeczek wrote: > -> $ qemu-img create -f qcow2 -b -o > encrypt.key-secret=3fd57349-3671-4cf2-ab00-f13b8ba00a4d > /00.GLUSTER-mnt/VMs3/enc.locallan.qcow2 -F qcow2 > ./enc.locallan.qcow2.bkp > qemu-img: Invalid image size specified. You may use k, M, G, > T, P or E

qemu -cpu

2021-08-14 Thread Frans de Boer
LS, Suppose I want to simulate, using qemu, a Ryzen znver3 processor, what -cpu flag do I set? The current list for qemu does not include any Ryzen/Threadripper cpu. So, I can optimize code using -mtune of -march for gcc, but these flags do not correspond with qemu's processor list.

Fwd: fbdev2

2021-08-14 Thread Kjell via
Hi, Thanks for your time. That is indeed what I am looking for yes, but directFB hasn't been developed for 6 years now. And from reading about the topic, SDL was buggy and had some issues. (some other project tried to do the same with only SDL that directFB did) From what I can understand,

Re: Questions about Disk I/O Record and Replay

2021-08-14 Thread Arnabjyoti Kalita
Dear Pavel, Thank you again for the answers. I had another question - How is it possible to just use the request id while recording and use it during replay? Don't we have to record other parameters of the disk I/O request (like offset, bytes, iov buffer etc.) ? Best Regards, Arnabjyoti Kalita

'qemu-img create' to backup encrypted qcow2 - ?

2021-08-14 Thread lejeczek
Hi guys. I am trying to backup qcow2s which are luks encrypted but I fail and I wonder if it's my syntax being crooked or something is not working in qemu(-img). Non-encrypted qcow2 works fine and I only add encryption bits to cmd line, here: -> $ qemu-img create -f qcow2 -b -o

Re: fbdev2

2021-08-14 Thread Thomas Huth
On 11/08/2021 23.38, Kjell via wrote: Howdy, I hate to ask stupid questions in the wrong places, but I just can't find anything and it puzzles me. Forgive me any ignorance too please. Is it possible, or would it be, to be able to run qemu (qemu-kvm) without X in the framebuffer using the