Public bug reported:

I have found i am almost completely unable to use CDROM as an apt
repository on Ubuntu 14.04


I found the command apt-cdrom add by default, was unable to detect CDROMs
it was attempting to find them in /media/cdrom/
by default ubuntu now seems to mount cds in /media/$USER/ and this is not 
something set via fstab 
i was able to get them to add with the command 
apt-cdrom add -m --cdrom /media/$USER/

I seem to have been able to pull the package list from the CD, but when it 
comes to installing from it, apt encounters a similar error
it ask you to insert the disc in drive /media/cdrom/ again


I also am completely unable to add cds via the software & updates
setting manager, it always fails to find the cd, which is presumably
part of the same issue.


manually remounting with 
sudo mount /dev/cdrom /media/cdrom 
get some things to work, but most of the actions trigger a remount which goes 
back to the default location


I was finally able to get things working again properly by adding the fstab  
line 
/dev/cdrom  /media/cdrom  udf,iso9660  user,noauto,exec,utf8  0  0
resolves the problem for me
but this is a work around not a fix, it may break other stuff


In apt conf i have tried setting 
Acquire::cdrom::mount "file/path/";
with various file paths, the file paths, to try and make it work with the 
default mount behaviour,this looked to be the right setting to change as the 
message changed accordingly to what i was setting, but i could not get it to 
work  for actually installing packages, even by setting an absolute file path 
for my user in the media directory.

** Affects: apt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apt cdrom

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https://bugs.launchpad.net/bugs/1415701

Title:
  apt is unable to handle CDROMS with default mount option

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