$ sudo apt-get install libsdl-mixer1.2
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  libmikmod3
The following NEW packages will be installed:
  libmikmod3 libsdl-mixer1.2
0 upgraded, 2 newly installed, 0 to remove and 14 not upgraded.
Need to get 182 kB of archives.
After this operation, 580 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
Abort.

BUT!

$ sudo dpkg --install libsdl-mixer1.2
dpkg: error processing archive libsdl-mixer1.2 (--install):
 cannot access archive: No such file or directory
Errors were encountered while processing: