I think it's even possible to modify that shell script to pipe into
nbdkit and from there to ‘qemu-img convert’. I'm too lazy to actually
do that right now, but the basic idea is here:
https://rwmj.wordpress.com/2014/10/14/streaming-nbd-server/
You'll probably have to add ‘-m 1’ to the qemu-im
On Thu, 16 Nov 2017 13:56:16 +0100
Tomáš Golembiovský wrote:
> On Wed, 15 Nov 2017 21:41:20 +0100
> Gandalf Corvotempesta wrote:
>
> > 2017-11-15 21:29 GMT+01:00 Richard W.M. Jones :
> > > Gandalf, is there an XVA file publically available (pref. not
> > > too big) that we can look at?
> >
On Wed, 15 Nov 2017 21:41:20 +0100
Gandalf Corvotempesta wrote:
> 2017-11-15 21:29 GMT+01:00 Richard W.M. Jones :
> > Gandalf, is there an XVA file publically available (pref. not
> > too big) that we can look at?
>
> I can try to provide one, but it's simple:
>
> # tar tvf 20160630_124823_aa72
On Thu, Nov 16, 2017 at 11:07:10AM +0100, Gandalf Corvotempesta wrote:
> 2017-11-16 11:01 GMT+01:00 Richard W.M. Jones :
> > As mentioned before you can use this to do a qemu-img convert using
> > captive nbdkit:
> >
> > $ nbdkit -U - \
> > perl script=./xva-reader.pl file=./debian8cloud.xv
2017-11-16 11:01 GMT+01:00 Richard W.M. Jones :
> As mentioned before you can use this to do a qemu-img convert using
> captive nbdkit:
>
> $ nbdkit -U - \
> perl script=./xva-reader.pl file=./debian8cloud.xva size=4294967296 \
> --run 'qemu-img convert -f raw $nbd -O qcow2 /var/tmp/o
Here's my solution, as a nbdkit plugin written in Perl.
As with Max's solution I don't bother to parse the virtual size out of
the XML file, so you need to specify that on the command line
otherwise the disk will be truncated to the largest extent stored in
the file. Also the ‘.xva’ file must not
On Wed, Nov 15, 2017 at 09:05:00PM +, Richard W.M. Jones wrote:
> This will give you one offset/size/filename tuple for each file. The
> plugin will then simply need to calculate which file to access to
> resolve each virtual file range (or substitute zeroes for missing
> files).
By which I m
On Wed, Nov 15, 2017 at 09:41:20PM +0100, Gandalf Corvotempesta wrote:
> 2017-11-15 21:29 GMT+01:00 Richard W.M. Jones :
> > Gandalf, is there an XVA file publically available (pref. not
> > too big) that we can look at?
>
> I can try to provide one, but it's simple:
>
> # tar tvf 20160630_124823
