I did something different, that will build a raw image directly from a xenserver export, on the fly. Compared the resulting file (via MD5) with xenmygrate.py and there is a match.
Currently, this is the faster way to convert a XenServer image to a raw file. Don't need to wait for export, tar extract and conversion. It does all of that, at the same time during the VM export in a single pass. If someone interested in testing it, it would be apreciated. 2017-11-16 15:02 GMT+01:00 Max Reitz <mre...@redhat.com>: > On 2017-11-16 11:08, Gandalf Corvotempesta wrote: >> 2017-11-15 23:55 GMT+01:00 Max Reitz <mre...@redhat.com>: >>> https://xanclic.moe/convert-xva.rb -- does this work? >>> (It seems to works on the two example images I found...) >>> >>> An example is in the code, you use it like this: >>> >>> $ ./convert-xva.rb ~/Downloads/stats-appliance-2.36.020502.xva Ref:73 >> >> >> It doesn't work on huge images: >> >> # time convert-xva.rb 20171115_193814_efff_.xva Ref:10 -O qcow2 disk1.qcow2 >> /usr/bin/convert-xva.rb:119:in `exec': Argument list too long - >> qemu-img (Errno::E2BIG) >> from /usr/bin/convert-xva.rb:119:in `<main>' >> >> real 9m41.414s >> user 0m19.280s >> sys 0m3.260s > > Well, there is this: > > https://github.com/XanClic/qemu.rb/blob/master/examples/convert-xva-online.rb > > That should get around that restriction, but currently it is stupidly > slow (because it just issues all 1 MB copy operations simultaneously), > and it doesn't use qemu-img convert. Instead, it uses a real qemu with > block jobs. Ideally, you'd use it like this: > > $ ./convert-xva-online.rb ~/Downloads/stats-appliance-2.36.020502.xva > Ref:73 81936 M > $ qemu-img create -f qcow2 [whatever options you need] disk1.qcow2 \ > 81936M > Formatting 'disk1.qcow2', fmt=qcow2 size=85916123136 encryption=off > cluster_size=65536 lazy_refcounts=off refcount_bits=16 > $ ./convert-xva-online.rb ~/Downloads/stats-appliance-2.36.020502.xva \ > Ref:73 \ > '{"driver":"qcow2", > "detect-zeroes":"unmap", > "discard":"unmap", > "file":{"driver":"file","filename":"disk1.qcow2"}}' > Adding block devices... > Starting block jobs... > 100.00 % of jobs completed > > (Maybe I can get it faster.) > > Max >
xva_conv.sh
Description: Bourne shell script