~ # apt-get update
...
~ # apt-get install ruby
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed
  ruby
0 upgraded, 1 newly installed, 0 to remove and 8 not upgraded.
Need to get 24.2MB of archives.
After this operation, 0B of additional disk space will be used.
Get: 1 http://harmattan.openrepos.net personal/main ruby 2.0.0 [24.2MB]
Fetched 24.2MB in 19s (1,237kB/s)                                              
(Reading database ... 55816 files and directories currently installed.)
Unpacking ruby (from .../archives/ruby_2.0.0_armel.deb) ...
dpkg: error processing /var/cache/apt/archives/ruby_2.0.0_armel.deb (--unpack):
 error setting permissions of `./usr/local/include/ruby-2.0.0': Operation not permitted
dpkg-deb (subprocess): data: internal gzip write error: Broken pipe
dpkg-deb (subprocess): failed in write on buffer copy for failed to write to pipe in copy: Broken pipe
dpkg-deb: subprocess <decompress> returned error exit status 2
Errors were encountered while processing:
 /var/cache/apt/archives/ruby_2.0.0_armel.deb
aegis-NOT-installing ruby (from '')
Updating desktop entries... Done
E: Sub-process /usr/bin/dpkg returned an error code (1)