Michael Tokarev wrote: > 19.11.2019 20:45, Jamie Heilman wrote: > > Michael Tokarev wrote: > >> 19.11.2019 13:44, Jamie Heilman wrote: > >>> Package: qemu-system-x86 > >>> Version: 1:4.1-1+b4 > >> > >>> [...] If I switch back to 3.1+dfsg-8+deb10u3 > >>> the corruption vanishes. > >> > >> What do you switch back? qemu-system-x86 or qemu-utils? > > > > Both qemu-system-x86 and qemu-utils but only on the build machine, the > > qemu version on the system that winds up actually running the guests is > > older (Debian 8 era). > > Oh. That means the broken part is the part which did the conversion, > that is qemu-img, which is part of qemu-utils.
Well that's not what my testing shows; after testing through various different approaches, anytime I build an image with qemu-system-x86 4.1 I wind up with corruption, the version of qemu-utils tools used at any stage doesn't seem to matter. Using qemu-system-x86 3.1 with any version of qemu-utils tools works OK. > >> Also, try qemu-img check on each step resulting in a qcow > >> image (there's nothing to check on the lvm volume ofcourse). > > It should show the step which is broken. qemu-img check never reports any problems in any combination. -- Jamie Heilman http://audible.transient.net/~jamie/
