forum post.

file_844073.txt (text/plain), 1.30 KB, created by Andreas on 2022-05-13 17:41:57 UTC

This is what mike155 suggested in the forums

Well, it's open source, isn't it?

Use 'grep' to find the sentence 'Windows 7 may crash if you save this partition table!' in the source code.
Code:
ebuild /var/db/repos/gentoo/sys-apps/gptfdisk/gptfdisk-1.0.8-r1.ebuild prepare
cd /var/tmp/portage/sys-apps/gptfdisk-1.0.8-r1/work/gptfdisk-1.0.8/
grep -r "Windows 7 may crash if you save this partition table" .

There it is: in file guid.cc, in function GUIDData::Randomize(void).

A comment describes the function:
Code:
// Set a completely random GUID value....
// The uuid_generate() function returns a value that needs to have its
// first three fields byte-reversed to conform to Intel's GUID layout.
// The Windows UuidCreate() function doesn't need this adjustment. If
// neither function is defined, or if UuidCreate() fails, set a completely
// random GUID -- not completely kosher, but it works on most platforms
// (immediately after creating the UUID on Windows 7 being an important
// exception).

Something goes wrong in this function. You could try to find out the root cause. It could be:
an issue on your machine
a bug in the code
a bug in the way Gentoo builds this package
Once you know what goes wrong, you can file a bug.


https://forums.gentoo.org/viewtopic-t-1150097-highlight-.html