I was using the wrong version. I grabbed the one for XP and everything
works now. This is off topic but I'm also curious about your sample
"C:\unison...." It looks like you are using vshadow with unison. Does
that help with unison's sync reliability? Or do you do it that way just
to make sure you grab any locked files?
Thanks for your help
Tomas
Stephen Joyce wrote:
> VSS works fine for me on XP pro sp2 (as administrator).
>
> Make sure that "MS Software Shadow Copy Provider" and "Volume Shadow
> Copy" are both automatic/started. Also make sure you're using the
> correct vshadow.exe as there are different versions for each OS (ie,
> 2003 and XP are different from each other and different from vista)!
>
> C:\>c:\unison\bin\vshadow.exe c:
>
> VSHADOW.EXE 2.2 - Volume Shadow Copy sample client
> Copyright (C) 2005 Microsoft Corporation. All rights reserved.
>
>
> (Option: Create shadow copy set)
> (Gathering writer metadata...)
> (Waiting for the asynchronous operation to finish...)
> Initialize writer metadata ...
> Discover directly excluded components ...
> - Excluding writer 'MSDEWriter' since it has no selected components for
> restore.
>
> Discover components that reside outside the shadow set ...
> ... snipped for brevity ...
> - Shadow copy device name:
> \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1
> - Originating machine: (null)
> - Service machine: (null)
> - Not Exposed
> - Provider id: {b5946137-7b9f-4925-af80-51abd60b20d5}
> - Attributes: Auto_Release
>
> - Mark all writers as succesfully backed up...
> Completing the backup (BackupComplete) ...
> (Waiting for the asynchronous operation to finish...)
> (Waiting for the asynchronous operation to finish...)
>
> Snapshot creation done.
> C:\>
>
> Cheers, Stephen
> --
> Stephen Joyce
> Systems Administrator P A N I C
> Physics & Astronomy Department Physics & Astronomy
> University of North Carolina at Chapel Hill Network Infrastructure
> voice: (919) 962-7214 and Computing
> fax: (919) 962-0480 http://www.panic.unc.edu
>
> Some people make the world turn and others just watch it spin.
> -- Jimmy Buffet
>
> On Fri, 28 Sep 2007, Tomas Florian wrote:
>
>> I was curious about the vshadow functionality in all of this so I tried
>> it. It works fine on Windows 2003, but not on Windows XP SP2 (I tried 4
>> different machines including one installed from scratch in a VM) I get
>> the same error for the following commands:
>>
>> vshadow -q
>> vshadow -p -nw C:
>>
>>
>> VSHADOW.EXE 2.2 - Volume Shadow Copy sample client
>> Copyright (C) 2005 Microsoft Corporation. All rights reserved.
>>
>>
>> (Option: Query all shadow copies)
>> - Setting the VSS context to: 0xffffffff
>>
>> ERROR: COM call "m_pVssObject->SetContext(dwContext)" failed.
>> - Returned HRESULT = 0xc0000005
>> - Error text: <Unknown error code>
>> - Please re-run VSHADOW.EXE with the /tracing option to get more details
>>
>>
>>
>> the tracing option didn't help because all it says is "Unknown error
>> code" as well. All of the XPs I tried it on were professional and some
>> of them had most recent updates while others did not.
>>
>> You mentioned having trouble with Vista which is not such a big
>> surprise, but what about XP? Or am I missing some prerequisite when
>> running vshadow by itself?
>>
>> I saw that my Shadow Service in services wasn't started. So I started
>> that on the XP machines but I got the same result. On Win 2003 SBS
>> server it worked the first time with no trouble at at all.
>>
>> Regards,
>> Tomas
>>
>>
>> Tomas Florian wrote:
>>> Thanks Rod,
>>>
>>> I haven't had a chance to test it yet. But I looked inside your xp
>>> script - at the way you do the shadow copy. I've been looking for
>>> something like that for quite a while. This is really good.
>>>
>>> Regards,
>>> Tomas
>>>
>>> Rod Dickerson wrote:
>>>> Well, I am calling it quits because of Vista. I have a pre-script
>>>> that works
>>>> with WinXP, which does the following:
>>>>
>>>> 1. Check to see if client (rsync) is installed, and if not, install it.
>>>> 2. Open firewall ports for rsync
>>>> 3. Create a snapshot and mount it to X:
>>>> 4. Start rsyncd, exporting X:
>>>> 5. Check to make sure that processes are running
>>>> 6. Turn over to BPC for backup
>>>>
>>>> After the backup, the post-script does the following:
>>>>
>>>> 1. Tear down the snapshot (kill rsync processes)
>>>> 2. Remove the X: drive
>>>> 3. Close firewall ports for rsync
>>>>
>>>> The install_client script does the following:
>>>>
>>>> 1. Verifies that the target hostname matches the requested hostname.
>>>> This is
>>>> important because of the next step.
>>>> 2. Establishes a unique password for rsync for the machine. This is
>>>> put into
>>>> rsyncd.secrets and hostname.pl for the client. This is to ensure
>>>> that BPC
>>>> will not back up machine X thinking it is machine Y. I know there is
>>>> some
>>>> name checking when the backup starts, but dynamic name registration
>>>> is not
>>>> always perfect.
>>>> 3. Copies rsync and other binaries to c:\rsyncd on the client. You
>>>> need to
>>>> put the rsyncd.tar.gz files in /home/backuppc/backuppc_client or
>>>> some other
>>>> directory (but change the scripts accordingly). You also need to get
>>>> the
>>>> rest of rsync from the backuppc.sourceforge.net page; this tar only
>>>> includes
>>>> my config files for reference. I couldn�t include everything because
>>>> the
>>>> file size is too big for the list.
>>>> 4. Sets the host password in /etc/BackupPC/pc/hostname.pl
>>>>
>>>> You will also need the following things installed on the server,
>>>> which you
>>>> may not have:
>>>>
>>>> Apg � password generator. Used by install_client. This should be
>>>> available
>>>> in apt, yum, etc.
>>>> Winexe � allows remote command execution on windows hosts from Linux.
>>>> http://eol.ovh.org/winexe/
>>>>
>>>> I really wanted to get kerberos authentication working, but this is
>>>> where I
>>>> got stuck. It seems to work fine when running BackupPC_dump when
>>>> su�d to
>>>> backuppc, but when I run it from the daemon (via the CGI page), it
>>>> hangs
>>>> when running winexe. There seems to be some issue with winexe when
>>>> it is ran
>>>> this way, and I am not sure if it is the way that Perl calls shell
>>>> commands,
>>>> or if it is BackupPC. I tried to debug it, but I am not a programmer
>>>> (as you
>>>> will see in my scripting genius) nor am I am Perl guru. I am
>>>> submitting my
>>>> work so that others may be able to figure it out, because I am stuck
>>>> and at
>>>> this point I can�t continue using BPC (sadly). One main reason why I
>>>> wanted
>>>> to use Kerberos is because it doesn�t require the backuppc user�s
>>>> credentials to be stored in clear text on the file system, and also
>>>> because
>>>> Vista seems to have some issue with using NTLM. I found that when I
>>>> tried to
>>>> connect to Vista over a WAN connection using NTLM sometimes it would
>>>> time
>>>> out, yet using Kerberos (from the shell) worked every time. So there
>>>> must be
>>>> something strange about how Vista uses NTLM or something, because I
>>>> never
>>>> had these problems with XP. But if you are going to back up local Vista
>>>> clients and don�t mind saving credentials on the local filesystem in
>>>> clear
>>>> text (which, by the way, must have local admin rights on the hosts
>>>> that it
>>>> backs up), then you can use this with NTLM. If you are in a Windows AD
>>>> environment and want to try Kerberos auth, you will need to use this
>>>> guide:
>>>> http://technet.microsoft.com/en-us/library/Bb742433.aspx,
>>>> specifically the
>>>> section about �creating a service instance account.�
>>>>
>>>> There is one additional caveat when backing up Vista using VSS. I
>>>> couldn�t
>>>> find a way to create a snapshot on the fly with Vista, so I was just
>>>> using
>>>> the last snapshot created by the system. Vista is configured to
>>>> create a
>>>> system snapshot once per day, so I figured that was good enough. It is
>>>> easier than with XP, which requires a process to keep the snapshot
>>>> alive,
>>>> which is why I was firing up rsyncd using my rsync scripts. You can
>>>> create
>>>> one snapshot with XP, but once the application that is using it goes
>>>> away
>>>> the snapshot disappears; there is no way to make �persistent�
>>>> snapshots as
>>>> with Vista and Windows 2003. Anyway, this is getting kind of long,
>>>> so if
>>>> anyone has specific questions please let me know. Also, if you do
>>>> get this
>>>> working please let me know so I can continue with BPC. Thanks
>>>>
>>>> Rod
>>>>
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>>
>>>> -------------------------------------------------------------------------
>>>>
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>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>>
>>>> _______________________________________________
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>>>
>>>
>>
>>
>> --
>>
>> Tomas Florian
>> Florien
>>
>> Suite 812, 738 3rd Ave SW
>> Calgary Alberta, T2P 0G7
>>
>> (403) 714-3914
>> [EMAIL PROTECTED]
>> www.florien.ca
>>
>> -------------------------------------------------------------------------
>> This SF.net email is sponsored by: Microsoft
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>>
>>
>> --
>>
>>
--
Tomas Florian
Florien
Suite 812, 738 3rd Ave SW
Calgary Alberta, T2P 0G7
(403) 714-3914
[EMAIL PROTECTED]
www.florien.ca
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