Comments on: Qemu disk image conversion

By: neozeed

neozeed — Sat, 27 May 2017 02:07:15 +0000

I just filled a 4TB disk, and most of it went to giant disks for VMs that barely had anything on them… but in the scale of things it doesn’t matter I suppose.

Any luck with a config like the one I mentioned? qcow or raw shouldn’t matter. I did use an actual SUN-5 ROM, although the OpenBIOS should be up to Solaris and maybe even SunOS by now.

By: Robert Dinse

Robert Dinse — Fri, 26 May 2017 20:06:30 +0000

I stick with raw, I worry that at some point I’ll run out of disk space, a write in qcow will try to extend the image, it can’t, and my file system will be garbage. Rather have the disk space committed up front. Anyway disk is dirt cheap these days, especially given the size of images of earlier machines.

By: atar

atar — Wed, 16 Nov 2011 18:04:01 +0000

In reply to neozeed. The current git version went fine though.

By: neozeed

neozeed — Wed, 16 Nov 2011 15:24:02 +0000

In reply to atar.

Yeah it’s got some 4GB issue with raw images on Win32… No doubt an unsigned integer size thing somewhere…

By: atar

atar — Wed, 16 Nov 2011 11:35:00 +0000

Well, at least conversion to vdi doesn’t workout too well: the current VirtualBox doesn’t pick up the image, complaining about unsupported version…
Didn’t try vmdk, went with raw ahead, which worked out good but not with 0.15. (0.15 converted a smaller image fine, but kept telling “write error” on a larger image).

By: neozeed

neozeed — Wed, 03 Aug 2011 12:19:18 +0000

Yes, that’s the great thing about that utility! In that example I used the extension ‘.disk’ but the format was qcow2 …

By: HellRazor

HellRazor — Wed, 03 Aug 2011 07:52:33 +0000

.disk format used in your windows 2000 post is limited? can i convert it too?