I have researched 80091007 errors and everything I've read indicates a hash mismatch. My smsts logs bear no reference to a hash mismatch. Because my task sequence successfully processes tasks for preparing C:\ I am able to locate smts.log in
C:\_SMSTaskSequence\Logs\Smstslog. I have reviewed the smsts log in X:\ as well and interestingly the file sizes of each are the same between C: and X:.
I have several Dell models and all of them take my image (via the same task sequence) without error, save for the Dell 5290 2in1. The only variation in the task sequence is the application of driver and bios packages based on a WMI queries for model name.
The task sequence proceeds through all steps prior to the application of the OS. It downloads my 10GB WIM, it begins 'Applying Operating System' and after about three minutes throws the 0x80091007 error.
I have tried different network adapters (all USB-C to Ethernet), different switches and cables. Each time the 5290 2in1 fails while machines next to it running the same OSD task sequence finish without issue.
I have read some posts which indicate bad RAM can yield a hash error. The RAM in my problem Dell model is soldered to the board. On-board diagnostics do not indicate any RAM issues.
I have a shipment of these problem models on the way and no way to image them...
andrew