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RE: [cygwin] Re: Is a disk image created within dd "safe"?
- From: "Lemke, Michael ST/HZA-ZIC2" <lemkemch at schaeffler dot com>
- To: "cygwin at cygwin dot com" <cygwin at cygwin dot com>
- Date: Thu, 3 Sep 2015 11:16:40 +0000
- Subject: RE: [cygwin] Re: Is a disk image created within dd "safe"?
- Authentication-results: sourceware.org; auth=none
- References: <CA+imRYKfrvgVWUSh4=9tsF=QxjKGfPoiE-nRfVF7rbWO1v-b8A at mail dot gmail dot com> <CA+imRYLmnThTV-7=JQ_viDLk65HeO+2sUdxN+ThGkML6=k=iQw at mail dot gmail dot com> <55E772CF dot 4070807 at redhat dot com> <6F760D1B8B0E4196A66D0FE8765FE671 at black7>
On Thursday, September 03, 2015 12:23 AM Jason Pyeron wrote:
>
>> -----Original Message-----
>> From: Eric Blake
>> Sent: Wednesday, September 02, 2015 6:06 PM
>>
>> On 09/02/2015 03:57 PM, Clint Olsen wrote:
>>
>> > I'm also interested in generating images to preserve the
>> entire disk.
>> > What I'm wondering is whether doing this on a live system through
>> > Cygwin would produce a safe, bootable disk image or if the the APIs
>> > that Cygwin has to use or having the disk mounted would make this
>> > unreliable?
><snip> don't do it with out snapshots... </snip>
>> There are various solutions that CAN capture an accurate
>> point-in-time disk snapshot.
>
>For cygwin/Windows use the Volume Shadow Service (VSS). I have used (XP)
>cygwin dd and rsync to take (clone) images from the VSS managed drive.
>
Could you elaborate a little? How does this VSS thing work? I am always
confused with Windows disk management when it isn't a single disk. Once
I can use dd and rsync I am fine.
Thanks,
Michael
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