Re: [Xen-users] Upstream QEMU does not support vhd snapshot

[Thanos Makatos <thanos.makatos@xxxxxxxxxx>]

> -----Original Message-----
> From: kevin.zhang@xxxxxxxxxxx [mailto:kevin.zhang@xxxxxxxxxxx]
> Sent: 05 July 2013 10:24
> To: Thanos Makatos
> Cc: xen-users
> Subject: RE: [Xen-users] Upstream QEMU does not support vhd snapshot
> 
> Hi Thanos,
> 
> ÂÂÂÂ Thank you for your reply.
> ÂÂÂÂ I applied this patch to xen 4.3.0-rc6, and make tools; make
> install-tools;Â and then reboot the system.
> ÂÂÂÂ However, snapshot created by vhd-util still cannot be mounted by
> qemu.
> ÂÂÂÂ I doubt whether there are other problems here.

How do you create the VHD file and how do you snapshot it? What does qemu 
complain about when you try to mount it?

> 
> ________________________________________
> Best Regards
> 
> From:ÂThanos Makatos
> Date:Â2013-07-05Â16:49
> To:Âkevin.zhang; xen-users
> Subject:ÂRE: [Xen-users] Upstream QEMU does not support vhd snapshot
> >Â-----OriginalÂMessage-----
> >ÂFrom:Âxen-users-bounces@xxxxxxxxxxxxxÂ[mailto:xen-users-
> >Âbounces@xxxxxxxxxxxxx]ÂOnÂBehalfÂOfÂkevin.zhang@octlink.com
> >ÂSent:Â05ÂJulyÂ2013Â03:53
> >ÂTo:Âxen-users
> >ÂSubject:Â[Xen-users]ÂUpstreamÂQEMUÂdoesÂnotÂsupportÂvhdÂsnapshot
> >
> >ÂHiÂall,
> >
> >ÂÂÂÂÂÂÂÂÂI'mÂtestingÂ4.3.0-rc6,ÂandÂfoundÂanotherÂproblem:
> >ÂÂÂÂÂÂÂÂÂTheÂnormalÂvhdÂsnapshotÂfileÂcannotÂbeÂmountedÂbyÂqemu
> >Âupstream,ÂwhichÂisÂquiteÂupset.
> >ÂÂÂÂÂÂÂÂÂIÂsearchÂfromÂtheÂweb,ÂandÂfindÂsomebodyÂsaid:
> >ÂÂÂÂÂÂÂÂÂÂÂÂÂÂThisÂisÂdueÂtoÂaÂbugÂinÂtheÂblktap2ÂcodeÂwhichÂusesÂloca
> l
> >ÂtimeÂinsteadÂofÂUTC
> >ÂÂÂÂÂÂÂÂIsÂthereÂanyÂpatchÂinÂtheÂmainÂlineÂblktap2ÂcodeÂforÂthis
> >Âproblem?
> 
> AFAIKÂthereÂisn'tÂany,ÂbutÂyouÂcouldÂtryÂapplyingÂtheÂfixÂthatÂexistsÂi
> nÂblktap2.5:Âhttps://github.com/xapi-
> project/blktap/commit/a79ac2c05f97c2384bbf981419f329f184dc646a.ÂItÂshou
> ldn'tÂbeÂveryÂhardÂtoÂrebaseÂtheÂpatch.
> 
> Cheers
> 
> >
> >Â________________________________________
> >ÂBestÂRegards
> 
> 
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