Thanks, Unman and Ivan.. I ended up trying:
qvm-start --cdrom=dom0:/dev/sr0 win7 ..and it worked, since that's where my CD drive was mounted as. I'll give the suggested syntax a try as well, and imagine it will succeed also. The transition from Qubes 3.2 to 4.0 has been full of hiccups both large and small due to various scattered system changes like this one, and I appreciate the assistance here. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/e1904a55-e27d-4703-b79c-e890a72c59ac%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.