Comment 9 for bug 1222847

I modified the pool so the default SR is now the one with ffs-type:

uuid ( RO) : 106ab117-5431-0931-889b-6c534cd061c6
          name-label ( RW): /usr/share/xapi/images
    name-description ( RW): Files stored in /usr/share/xapi/images
                host ( RO): r421-e3-2
                type ( RO): ffs
        content-type ( RO): default

I tried to start an instance but unfortunatly I have the same issue with the uuid that is the name-label without the vhd extension:

nova.compute.manager [...] Failure: ['UUID_INVALID', 'VDI', 'e6b6c517-ad7e-4e42-82c2-1f7e00858075']

and

xe vdi-list name-label=e6b6c517-ad7e-4e42-82c2-1f7e00858075.vhd
uuid ( RO) : 3d719010-a7a7-dea2-19f8-8441bae2a630
          name-label ( RW): e6b6c517-ad7e-4e42-82c2-1f7e00858075.vhd
    name-description ( RW):
             sr-uuid ( RO): 106ab117-5431-0931-889b-6c534cd061c6
        virtual-size ( RO): 2299062272
            sharable ( RO): false
           read-only ( RO): false