Re: [Bug 1282655] [NEW] qcow2 images are not backwards compatiable with 12.04's qcow2

2014-02-20 Thread Serge Hallyn
I cannot reproduce this - a compat=0.10 image which I create on 14.04 works fine for me in a 12.04 instance. I copied it, attached it to nbd0, ran fdisk, created a fs, and mounted that. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to q

Re: [Bug 1282655] [NEW] qcow2 images are not backwards compatiable with 12.04's qcow2

2014-02-20 Thread Serge Hallyn
Using your test.img in trusty, I see: serge@sergelap:~$ qemu-img info test.img.1 image: test.img.1 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: false Are you sure you copied the r

Re: [Bug 1282655] [NEW] qcow2 images are not backwards compatiable with 12.04's qcow2

2014-02-20 Thread Serge Hallyn
Thanks for reporting this bug. I took the upstream git tree. Built it at today's git HEAD with ./configure --target-list=x86_64-softmmu --disable-fdt --disable-docs --disable-guest-agent and did ./qemu-img create -o compat=0.10 -f qcow2 /home/serge/test.img 1G Then checked out v1.0 (u

[Bug 1282655] [NEW] qcow2 images are not backwards compatiable with 12.04's qcow2

2014-02-20 Thread Ben Howard
Public bug reported: QCOW2's created on Trusty (Qemu 1.7.0+dfsg-3ubuntu2) fail when attempting any operation (read/mount/resize, etc) on Precise (1.0 +noroms-0ubuntu13). This bug is affecting the cloud image build process for newer architectures. On 14.04 $ qemu-img create -o compat=0.10 -f qcow