Comment 4 for bug 557641

Sorry, forgot to mention that I'd already done that:

$ sudo apt-get clean
 nothing returned

$ sudo apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up openssl (0.9.8g-16ubuntu3.1) ...
dpkg: error processing openssl (--configure):
 failed in buffer_read(fd): md5hash: Input/output error
Errors were encountered while processing:
 openssl
E: Sub-process /usr/bin/dpkg returned an error code (1)
ggmain3@ggmain3-desktop:~$ sudo dpkg --configure openssl
Setting up openssl (0.9.8g-16ubuntu3.1) ...
dpkg: error processing openssl (--configure):
 failed in buffer_read(fd): md5hash: Input/output error
Errors were encountered while processing:
 openssl

$ sudo apt-get update
 no errors - all looks normal

$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up openssl (0.9.8g-16ubuntu3.1) ...
dpkg: error processing openssl (--configure):
 failed in buffer_read(fd): md5hash: Input/output error
Errors were encountered while processing:
 openssl
E: Sub-process /usr/bin/dpkg returned an error code (1)