I've just come across this one myself... again an NEC CDROM though this time in a Laptop ( a Philips Freevents model. ) Since changing the CDROM is not an option for me, and I don't have a USB CDROM drive handy, I came up with this workaround:
When the message appears the first time:
Ctrl-Alt-F2 to get another console.
chroot /target
vi /etc/apt/sources.list
( comment out the CDROM line by inserting a # at the start, save and quit. )
apt-cdrom add
Ctrl-Alt-F1 to get back to the installed and press Enter.
( This is with the alternate install CDROM. )
The message appeared at least once more during the install, but repeating the above got past it. Also, at one point I got a message that selecting and installing failed - again I repeated the above, and selected to repeat the step from the menu.
After all of that, I had a working system! Although this seems to be related to NEC CDROM drives, it appears to be a bug since the drive itself works. Ideally someone needs to find out what the root cause is....
I've just come across this one myself... again an NEC CDROM though this time in a Laptop ( a Philips Freevents model. ) Since changing the CDROM is not an option for me, and I don't have a USB CDROM drive handy, I came up with this workaround:
When the message appears the first time: sources. list
Ctrl-Alt-F2 to get another console.
chroot /target
vi /etc/apt/
( comment out the CDROM line by inserting a # at the start, save and quit. )
apt-cdrom add
Ctrl-Alt-F1 to get back to the installed and press Enter.
( This is with the alternate install CDROM. )
The message appeared at least once more during the install, but repeating the above got past it. Also, at one point I got a message that selecting and installing failed - again I repeated the above, and selected to repeat the step from the menu.
After all of that, I had a working system! Although this seems to be related to NEC CDROM drives, it appears to be a bug since the drive itself works. Ideally someone needs to find out what the root cause is....