You don't need to put the test script in an iso. Just ask jedi to run it on his installation on the nvme drive. All the script does is let you choose partitions and give you some feedback. Then it exits. It's just to test the pattern for finding disks. It should recognize regular hard drives, nvme drives and sd cards.
(I'm putting this here for reference)
- Code:
egrep "*[sh]d[a-z]$|*nvme[0-9]n[0-9]$|*mmcblk[0-9]$"
egrep "*[sh]d[a-z][1-99]|*nvme[0-9]n[0-9]p[1-99]|*mmcblk[0-9]p[1-99]"