Mình thử update version của Ubuntu thì xuất hiện như sau :
Code:
ubuntu@ubuntu:~$ sudo apt-get install update-manager-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
update-manager-core is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up ganglia-monitor (3.1.7-2) ...
Adding system user: ganglia.
useradd: group ganglia exists - if you want to add this user to that group, use -g.
dpkg: error processing ganglia-monitor (--configure):
subprocess installed post-installation script returned error exit status 9
Errors were encountered while processing:
ganglia-monitor
E: Sub-process /usr/bin/dpkg returned an error code (1)