Wednesday, December 17, 2014

Using offline servicing in a server image with multiple indexes

Within ConfigMgr 2012 it's possible to update images with offline servicing functionality. When doing that on server media however, it's possible that multiple indexes are found. When that's the case, updates will be installed on all indexes, which takes a lot of time. In this scenario I'm installing 75 updates on a Windows Server 2012 R2 image with 4 indexes, which are:
-SERVERSTANDARDCORE
-SERVERSTANDARD
-SERVERDATACENTERCORE
-SERVERDATACENTER


When starting offline servicing on this image, a total of 300 updates (4x 75) will be installed. Let's have a look at the ConfigMgr logfile (OfflineServicingMgr.log):
4 images are detected
300 updates are installed

When using DISM however it's possible to remove existing indexes from an image, so offline servicing can do a way better/faster job. This can be done with the following command: DISM /get-imageinfo/imagefile:<path to WIM file>
 
Now that we know which index to keep and which to remove, use the following command: DISM /delete-image /imagefile:<path to WIM file> /index:<index number to remove>
 
In my case I removed 3 indexes, because the only index needed is SERVERSTANDARD. Let's have a look again with: DISM /get-imageinfo/imagefile:<path to WIM file>

There's only 1 index left now. Let's start offline servicing again on this image and have a look at the logfile (OfflineServicingMgr.log):
1 image is detected
75 updates are installed

As you can see this did the trick on my Windows Server 2012 R2 image. Did see another image with 8 indexes before also, which is crazy when using offline servicing. Just use above steps for removing them in the future. Just great isn't it?

Offline servicing is still very handy for updating images easily/quickly, when MS Office is not included in the image.

Source: Microsoft TechNet

Option: /Get-ImageInfo
Displays information about the images that are contained in the .wim, vhd or .vhdx file. When used with the /Index or /Name argument, information about the specified image is displayed, which includes if an image is a WIMBoot image, if the image is Windows 8.1 Update, see Take Inventory of an Image or Component Using DISM. The /Name argument does not apply to VHD files. You must specify /Index:1 for VHD files.

Option: /Delete-Image
Deletes the specified volume image from a .wim file that has multiple volume images. This option deletes only the metadata entries and XML entries. It does not delete the stream data and does not optimize the .wim file.
This command-line option does not apply to virtual hard disk (VHD) files.
/CheckIntegrity detects and tracks .wim file corruption when used with capture, unmount, export, and commit operations. /CheckIntegrity stops the operation if DISM detects that the .wim file is corrupted when used with apply and mount operations.

6 comments:

  1. Thank you. This is going to save me a lot of time. You rock for posting this.

    ReplyDelete
  2. Awesome thanks!!!!!!!!!

    ReplyDelete
  3. HI Henk, I am trying to do the offline servicing of the windows image using sccm 2012 R2 sp1 however when i click on OS image to schedule updates i do not see any available updates. I can see the updates in the all software update.

    ReplyDelete
    Replies
    1. Remember updates must be downloaded first within SCCM to use the offline servicing feature! Guess that will do the trick. Hope it helps!

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