Hi all,
Please have a look at this thread on the BunsenLabs forum regarding the bullseyes installer not detecting the cdrom while installing a new debian distro (BunsenLabs obviously) from and SD card:
https://forums.bunsenlabs.org/viewtopic.php?pid=123929#p123929
I suspect you are probably already aware of the issue...
Thanks for your hard hard, rest assured it is really appreciated.
Best regards
ben