Trouble with large size ISOs

[asti-bs1]

With the 5.2.x versions on Windows, I seem to be having trouble with certain ISOs. The USB drives write "successfully", but do not actually boot. Two things I've noticed about the non booting drives are this happens on larger ISO files. My non working ISOs are 4.5GB, 4.7, and the Rocky Linux full ISO which is ~10GB. The second thing I've noticed is that there doesn't appear to be any partitions on the drives after writing these ISOs. On Windows, the Disk Management app show one large RAW partition and on Linux I just see /dev/sdb.

The logs do not show any additional detail between successful ISOs and version 5.1.3 works fine.

[grulja]

This is strange, I cannot think of any reason why a bigger ISO image fail to write properly. Do smaller ISOs work for you with the version 5.2.x? Can you be more specific what other ISOs don't work just to try myself? Can you include MediaWriter-helper.log file?

[asti-bs1]

Smaller ISOs work. I used a 3.7GB ISO that worked. The sized ISOs are custom RHEL 8.x ISOs with our software and a custom kickstart that I may not be able to share easily. That is why I tried the full Rocky Linux ISO as that one is large and easily available for others to try. If there are other downloadable ISOs you would like me to try I can do that as well.

Also, to be more specific I tested version 5.2.0 and 5.2.2 and both produced the error condition. As mentioned, 5.1.3, does not.

I've attached the MediaWriter-helper.log from one of the error conditions. However, it is identical to a session that did not have the error condition.

FedoraMediaWriter-helper.log

[grulja]

I can reproduce also with RHEL image. I will investigate.