Hello community,

You may remember earlier this week I posted a thread in which I was requesting help in setting up a custom step in my Task Sequence that would invoke a custom DiskPart script allowing me to create an 8k allocated size disk. That works fine now.

My new problem however is when SCCM finishes the dump of the WIM file and reboots back in Windows, I get the following message:

A disk read error ocured

Press CTRL+ALT+DEL to restart

Any clues as to why?

For the purpose of this post, here's the content of my script that is called by DiskPart:

select disk=0
clean
create partition primary align=1024
format fs=ntfs unit=8k quick
assign letter=C
active

What's weird is that if I remove the unit=8k switch, everything works fine. I tried with and without the align=1024, that doesn't change anything.

Any ideas what my problem could be?

Let me know if you are missing information that could be helpful to troubleshoot.

Thanks!

Stephane

BOOTMGR, which resides on the system volume, cannot be placed on a volume that has been formatted with a NTFS cluster size that is greater than 4096 bytes (4K).

Hello Juke,

Thank you for your reply. Yes, I did find that KB yesterday while I was looking for a solution. And sure enough, when I saw what was proposed, I configured my Task Sequence custom Partition Disk step using DiskPart and gave it those exact steps. The result was the same. I mean, OK, I create a partition on a 4k cluster, and another with an 8k Cluster. But how do I "cheat" my Task Sequence into putting the MBR on one drive and the OS on the other?

Hi,

Here is a post talking about how to create 100MB boot partition.

http://www.windows-noob.com/forums/index.php?/topic/6136-failed-to-run-task-sequence-osd/ 

Hello once more!

Sorry for not replying earlier, I was off on a Holiday (Labor day) yesterday.

Ok, so, I saw your post. I had good hopes on it, however, upon reading it, I'm not sure it's applicable to what I want. Unless I misread it. From the KB you posted on your first reply, I understand that I must split my MBR from my OS by creating a 100MB partition to host it on, and then, deploy the OS on what's left of hard drive space.

That, I do understand. What I don't, is how to tell SCCM to do so. More specifically, how can I let SCCM know that I want my MBR on the 100MB drive and my OS on the other one? The reason I am asking this is because when looking at my Partition Disk step, under Disk Type, I see: Standard (MBR). I cannot choose where I want it.

Hope this clears it up!

Hi,

The first partition holding boot files must be chosen as boot partition and the Apply data image should be before Apply Operating System, then TS will put boot files in the boot partition.

Hi Juke,

Apologies if this will seem like a very stupid question, but, I just found out today that Apply Data Image is an actual step that can be added to my TS, I was under the impression that it was something new to SCCM 2012 that I didn't know about.

I'll try to read on the differences on Apply OS vs Apply Data Image to better understand the difference. That being said, could you elaborate a little more on your previous post? I'm not 100% sure that I understand what you mean.

Thanks!