open the sources.list file again with gedit and remove the garbage at
the end:
[?1049h[1;24r[m(B[4l[?7h[?12l[?25h[?1h=[?1h=[?1h=[39;49m[39;49m[m(B[H[2J[0;7m(B
GNU nano 2.2.2 File: /var/tmp/ edgy main.XXPcdLLv [22;33H[ Read 0 lines ]
[23d^G[m(B Get Help [0;7m(B^O[m(B
** Attachment added: red circle warning icon and errors (ubuntu 10.04 32-bit)
http://launchpadlibrarian.net/50935134/Screenshot1.png
--
'update-manager' package [ Read 0 lines ]' is not known on line 49 in source
list /etc/apt/sources.list, E:The list of sources could not be read.' (on new