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Re: Potential installation bug in TortoiseSVN 1.9.4 64 bit edition

From: Stefan Küng <tortoisesvn_at_gmail.com>
Date: Mon, 19 Sep 2016 19:46:48 +0200

On 19.09.2016 15:04, Edward Tippelt wrote:
> Dear Volunteer,
>
>
>
> Running on Windows 7 SP1 Enterprise Edition, 64 bit.
>
>
>
> I have encountered an installation problem with TortoiseSVN 1.9.4 64 bit
> that I have tracked down to the MSI action “InstallValidate”. When this
> action runs, Windows Explorer is closed, but fails to re-open at the end
> of the install. The section in the verbose installation log that refers
> to the probable cause of the explorer closure is shown below:
>
>
>
> MSI (s) (14:90) [13:42:45:466]: RESTART MANAGER: Will attempt to shut
> down and restart applications because the UI does not display any modal
> dialogs.
>
> MSI (c) (1C:0C) [13:42:45:466]: RESTART MANAGER: Session opened.
>
> MSI (s) (14:90) [13:42:45:513]: RESTART MANAGER: Successfully shut down
> all applications in the service's session that held files in use.
>
> MSI (c) (1C:0C) [13:42:45:513]: RESTART MANAGER: Successfully shut down
> all applications that held files in use.
>
>
>
> The time coincides exactly with the point at which Explorer closes,
> verified by placing Type 38 custom actions each side of InstallValidate
> in the InstallExecute sequence to show messages immediately before and
> immediately after InstallValidate.
>
>
>
> Looking at the end of the log, the entries suggest that all previously
> closed applications have been restarted:
>
>
>
> MSI (c) (1C:0C) [13:43:38:399]: RESTART MANAGER: Previously shut down
> applications have been restarted.
>
> MSI (c) (1C:0C) [13:43:38:399]: RESTART MANAGER: Session closed.
>
> === Verbose logging stopped: 19/09/2016 13:43:38 ===
>
>
>
> In our case, this is not happening.
>
>
>
> We used PAExec (a redistributable application that mimics the operation
> of Sysinternal’s PSExec utility) to run the install locally, as the
> install is triggered by the user from a menu of available apps, but run
> in an elevated context via PAExec.
>
> If I run the install from an elevated command prompt, Explorer is
> restarted at the end of the install. However, in this scenario, the
> install is being run from a user account. In the PAExec scenario, the
> install is being run in a system context I suspect this is why the
> explorer session is not being restarted, or it is being restarted in a
> system context (eg Session 1) that is not visible to user accounts of
> any description in Session 2.
>
>
>
> In order to be able to deploy this software to users, I need to find a
> solution to this problem. It would of course be ideal if this could be
> fixed within the TortoiseSVN package, as it is bad practice to just nuke
> running applications when a silent or basic UI installation is taking
> place. In our case, the average user would need to force a power off to
> restart the machine, or if more familiar with IT processes, start task
> manager and run Explorer.exe to get Windows Explorer running again.
>
> Programmatically, the installer needs to identify the currently logged
> on user and restart any processes that were stopped in the context of
> that user, as you cannot assume that the install is being done by an
> actual user. Most corporates use a distribution system such as SCCM or
> Symantec DS/NS which all run installs using a local system account.
> With XP. Interaction with the desktop was simple, but with Win 7 and
> later, the system and user processes run in different sessions and
> interaction with desktop is no longer straightforward.

As you're probably aware, when using msi we rely mostly on the msiexec
for installing everything. We only have custom actions to open the
changelog.txt file at the end on a click on the dialog button.
Everything else is standard msi (well, we use WiX to create the msi).

I have no idea why this happens for you, but searching the web showed
that this happens for others as well:
http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Restart-Resource-via-Elevated-Silent-SCCM-Install-td7595339.html

unfortunately, no solution there either.

So I'm sorry, but I have no idea on how to 'fix' this in TSVN.

Stefan

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Received on 2016-09-19 19:46:59 CEST

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