al@al-ubuntu:/tftpboot$ sudo apt-get install tftp-hpa
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  tftpd-hpa
The following NEW packages will be installed:
  tftp-hpa
0 upgraded, 1 newly installed, 1 to remove and 75 not upgraded.
1 not fully installed or removed.
Need to get 17.7 kB of archives.
After this operation, 106 kB disk space will be freed.
Do you want to continue [Y/n]? y
Get:1 http://archive.ubuntu.com/ubuntu/ natty/main tftp-hpa i386 5.0-21ubuntu2 [17.7 kB]
Fetched 17.7 kB in 2s (8,769 B/s)
(Reading database ... 318484 files and directories currently installed.)
Removing tftpd-hpa ...
dpkg: error processing tftpd-hpa (--remove):
 subprocess installed post-removal script returned error exit status 1
Processing triggers for ureadahead ...
Errors were encountered while processing:
 tftpd-hpa
E: Sub-process /usr/bin/dpkg returned an error code (1)
al@al-ubuntu:/tftpboot$