From log:
Preparing to unpack .../mailman_1%3a2.1.16-2ubuntu0.1_i386.deb ... sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error sh: printf: I/O error ...
From log:
Preparing to unpack .../mailman_ 1%3a2.1. 16-2ubuntu0. 1_i386. deb ...
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
sh: printf: I/O error
...