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Diffstat (limited to 'mailinglist/output_launchpad/1655764')
| -rw-r--r-- | mailinglist/output_launchpad/1655764 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/mailinglist/output_launchpad/1655764 b/mailinglist/output_launchpad/1655764 new file mode 100644 index 00000000..b79127ae --- /dev/null +++ b/mailinglist/output_launchpad/1655764 @@ -0,0 +1,28 @@ +qemu-img convert -c compression can't decompress + +Used -c compression option of qemu-img convert to compress qcow2, +then libvirt mount for compressed image don't work as well as decompression also +not working, tried glib-deflate to decompress + +Used openssl zlib -d < compressedfile but that also not working + +When tried zlib-flate -uncompress < cirros-0.3.4-x86_64-disk.img, +getting below error + +data: incorrect header check + +Which version of QEMU (or rather qemu-img) are you using? + +qemu-img version 2.1.2, Copyright (c) 2004-2008 Fabrice Bellard + +When reporting bugs, please always use the latest version of QEMU, old versions like 2.1 are not supported anymore. I just also noticed that Stefan Hajnoczi replied to the bug mail on the qemu-devel mailing list (see https://<email address hidden>/msg422186.html) - seems like the bridge did not mirror this to the bug tracker: + +"QEMU image compression uses the compression feature available in some + disk image formats (like qcow2). This is not the same as compressing a + file with gzip, bzip2, or similar tools. + Therefore this error is expected and not a bug." + +Yes used qcow2 format only when compressing, I don't think due to older version problem + +When converting qcow2 with -c option, then after not able to boot VM with compressed qcow2 image + |