* Re: Cygwin Support for Shadow Copies Exposed As Drives?
@ 2011-01-30 12:57 Leon Vanderploeg
2011-01-30 17:50 ` Corinna Vinschen
0 siblings, 1 reply; 6+ messages in thread
From: Leon Vanderploeg @ 2011-01-30 12:57 UTC (permalink / raw)
To: cygwin
References: <002b01cbac64$54079040$fc16b0c0$@vaultnow.com>
Bump…
Leon Vanderploeg
Business Data Protection, LLC
Cell: 303-877-9654
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cygwin Support for Shadow Copies Exposed As Drives?
2011-01-30 12:57 Cygwin Support for Shadow Copies Exposed As Drives? Leon Vanderploeg
@ 2011-01-30 17:50 ` Corinna Vinschen
0 siblings, 0 replies; 6+ messages in thread
From: Corinna Vinschen @ 2011-01-30 17:50 UTC (permalink / raw)
To: cygwin
On Jan 29 17:21, Leon Vanderploeg wrote:
> References: <002b01cbac64$54079040$fc16b0c0$@vaultnow.com>
With the upcoming 1.7.8 (and recent snapshots, see
http://cygwin.com/snapshots/) you can access volume shadow copies very
easily:
As administrator, elevated on Vista and later:
$ cd /proc/sys/Devices
$ ls -l Harddisk*
drwxrwx--- 1 Administrators SYSTEM 0 Jan 30 12:27 Harddisk0
brwxrwx--x 1 Administrators SYSTEM 0, 242 Jan 30 12:27 HarddiskVolume1
brwxrwx--x 1 Administrators SYSTEM 0, 242 Jan 30 12:27 HarddiskVolume2
brwxrwx--x 1 Administrators SYSTEM 0, 242 Jan 30 12:27 HarddiskVolume3
brwxrwx--x 1 Administrators SYSTEM 0, 242 Jan 30 12:27 HarddiskVolumeShadowCopy3
lr--r--r-- 1 Administrators SYSTEM 0 Jan 30 12:27 HarddiskVolumeShadowCopy{6faf6d91-2259-11e0-9403-000c295ff74f} -> /proc/sys/Device/HarddiskVolumeShadowCopy3
$ cd HarddiskVolumeShadowCopy3
HarddiskVolumeShadowCopy3: Not a directory
$ cd HarddiskVolumeShadowCopy3/
$ pwd
/proc/sys/Devices/HarddiskVolumeShadowCopy3
$ ls -1
$Recycle.Bin
Documents and Settings
PerfLogs
Program Files
ProgramData
Recovery
System Volume Information
Users
Windows
autoexec.bat
config.sys
cygwin
hiberfil.sys
pagefile.sys
$
Note that you have to use a trailing slash to cd into the root directory
of the drive. The reason is that the name "HarddiskVolumeShadowCopy3"
refers to the block device in the first place. Only by attaching the
trailing slash the system (Windows, not Cygwin!) realizes that you
want to access the drive's root dir. This is not necessary to access
other directories on the drive:
$ cd /proc/sys/Devices/HarddiskVolumeShadowCopy3/cygwin
$ ls -1
Cygwin.bat
Cygwin.ico
Cygwin.tcsh.bat
bin
cygdrive
dev
etc
home
lib
sbin
tmp
usr
var
Due to the layout of the native NT namespace and the extra DOS device
path handling there are a couple of other ways to access the shadow
copies, for instance:
$ cd /proc/sys/GLOBAL\?\?/HarddiskVolumeShadowCopy3/
$ cd /proc/sys/\?\?/global/HarddiskVolumeShadowCopy3/
$ cd //./HarddiskVolumeShadowCopy3/
$ cd //?/HarddiskVolumeShadowCopy3/
$ cd //./GLOBALROOT/Devices/HarddiskVolumeShadowCopy3/
but personally I prefer the access via /proc/sys/Devices. It's the
cleanest and easiest one, IMHO.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cygwin Support for Shadow Copies Exposed As Drives?
2011-01-05 21:22 Leon Vanderploeg
@ 2011-01-05 23:24 ` Larry Hall (Cygwin)
0 siblings, 0 replies; 6+ messages in thread
From: Larry Hall (Cygwin) @ 2011-01-05 23:24 UTC (permalink / raw)
To: cygwin; +Cc: leonv
On 1/4/2011 6:08 PM, Leon Vanderploeg wrote:
> I didn't see an email reply to
> <008801cbab56$59188f30$0b49ad90$@vaultnow.com> in my email, but I did see a
> reply in the forum. I am not sure about the right way to get back to the
> original item, but I'm hoping this will get it there.
It did. But it wasn't smart enough to maintain the list threading. I believe
you're missing the "References" field but don't quote me on that.
In general, if you want a reply specifically to come to you, you have to
request it. The list directs all replies back to the list so the easiest
way to make sure you see a response is to subscribe. ;-)
<snip>
>
> Thanks for the quick reply. I just pulled down the 2010-12-29. It, to
> failed the rsync chdir to an exposed drive. I scanned the change logs on
> all the snapshots listed on the page you suggested and I didn't see anything
> on shadow copies.
OK, it was a bit of a long-shot but I remembered some other discussion of
rsync recently and thought there might be a correlation.
--
Larry
_____________________________________________________________________
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
--
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cygwin Support for Shadow Copies Exposed As Drives?
@ 2011-01-05 21:22 Leon Vanderploeg
2011-01-05 23:24 ` Larry Hall (Cygwin)
0 siblings, 1 reply; 6+ messages in thread
From: Leon Vanderploeg @ 2011-01-05 21:22 UTC (permalink / raw)
To: cygwin
I didn't see an email reply to
<008801cbab56$59188f30$0b49ad90$@vaultnow.com> in my email, but I did see a
reply in the forum. I am not sure about the right way to get back to the
original item, but I'm hoping this will get it there.
Re: Cygwin Support for Shadow Copies Exposed As Drives?
From: "Larry Hall \(Cygwin\)" <reply-to-list-only-lh at cygwin dot com>
To: cygwin at cygwin dot com
Date: Mon, 03 Jan 2011 18:17:59 -0500
Subject: Re: Cygwin Support for Shadow Copies Exposed As Drives?
References: <008801cbab56$59188f30$0b49ad90$@vaultnow.com>
Reply-to: cygwin at cygwin dot com
----------------------------------------------------------------------------
----
On 1/3/2011 9:56 AM, Leon Vanderploeg wrote:
I have hit a brick wall in the Cygwin 1.7 arena -- shadow copies exposed as
drives can no longer be accessed. See
http://cygwin.com/ml/cygwin/2009-07/msg00954.html for an example of previous
documentation on this issue.
Are there any plans for a patch or work-around to allow an exposed shadow
drive to be accessed by a program such as rsync?
Thanks in advance, and best regards,
Leon
Have you tried a recent snapshot? <http://cygwin.com/snapshots/>
--
Larry
Hi Larry,
Thanks for the quick reply. I just pulled down the 2010-12-29. It, to
failed the rsync chdir to an exposed drive. I scanned the change logs on
all the snapshots listed on the page you suggested and I didn't see anything
on shadow copies.
Best regards,
Leon
Leon Vanderploeg
Business Data Protection, LLC
Cell: 303-877-9654
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cygwin Support for Shadow Copies Exposed As Drives?
2011-01-03 22:37 Leon Vanderploeg
@ 2011-01-04 12:13 ` Larry Hall (Cygwin)
0 siblings, 0 replies; 6+ messages in thread
From: Larry Hall (Cygwin) @ 2011-01-04 12:13 UTC (permalink / raw)
To: cygwin
On 1/3/2011 9:56 AM, Leon Vanderploeg wrote:
> I have hit a brick wall in the Cygwin 1.7 arena -- shadow copies exposed as
> drives can no longer be accessed. See
> http://cygwin.com/ml/cygwin/2009-07/msg00954.html for an example of previous
> documentation on this issue.
>
> Are there any plans for a patch or work-around to allow an exposed shadow
> drive to be accessed by a program such as rsync?
>
> Thanks in advance, and best regards,
> Leon
Have you tried a recent snapshot? <http://cygwin.com/snapshots/>
--
Larry
_____________________________________________________________________
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Cygwin Support for Shadow Copies Exposed As Drives?
@ 2011-01-03 22:37 Leon Vanderploeg
2011-01-04 12:13 ` Larry Hall (Cygwin)
0 siblings, 1 reply; 6+ messages in thread
From: Leon Vanderploeg @ 2011-01-03 22:37 UTC (permalink / raw)
To: cygwin; +Cc: corrinna-cygwin
I have hit a brick wall in the Cygwin 1.7 arena -- shadow copies exposed as
drives can no longer be accessed. See
http://cygwin.com/ml/cygwin/2009-07/msg00954.html for an example of previous
documentation on this issue.
Are there any plans for a patch or work-around to allow an exposed shadow
drive to be accessed by a program such as rsync?
Thanks in advance, and best regards,
Leon
Leon Vanderploeg
Business Data Protection, LLC
Cell: 303-877-9654
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
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^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-01-30 12:57 Cygwin Support for Shadow Copies Exposed As Drives? Leon Vanderploeg
2011-01-30 17:50 ` Corinna Vinschen
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2011-01-05 21:22 Leon Vanderploeg
2011-01-05 23:24 ` Larry Hall (Cygwin)
2011-01-03 22:37 Leon Vanderploeg
2011-01-04 12:13 ` Larry Hall (Cygwin)
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