Ubuntu
apt package

ravi@UNIX(4:~$ ubuntu-support-status Support status summary of 'UNIX(4.0 BSD)': You have 2709 packages (98.2%) that can not/no-longer be downloaded You have 51 packages (1.8%) that are unsupported Run with --show-unsupported, --show-supported or -

Asked by RAVISH SHEKHAR SINGH on 2016-07-27

ravi@UNIX(4:~$ ubuntu-support-status
Support status summary of 'UNIX(4.0 BSD)':

You have 2709 packages (98.2%) that can not/no-longer be downloaded
You have 51 packages (1.8%) that are unsupported

Run with --show-unsupported, --show-supported or --show-all to see more details
ravi@UNIX(4:~$ cat /etc/dpkg/dpkg.cfg.d/multiarch
cat: /etc/dpkg/dpkg.cfg.d/multiarch: No such file or directory
ravi@UNIX(4:~$ dpkg --print-foreign-architectures
ravi@UNIX(4:~$ sudo grep -R proxy /etc/apt/*
sudo: unable to resolve host UNIX(4.0 BSD)
[sudo] password for ravi:
ravi@UNIX(4:~$ grep proxy /etc/environment
ravi@UNIX(4:~$ echo $http_proxy

ravi@UNIX(4:~$ echo $ftp_proxy

ravi@UNIX(4:~$ grep proxy /etc/bash.bashrc
ravi@UNIX(4:~$ grep proxy ~/.bashrc
ravi@UNIX(4:~$ cat /etc/apt/apt.conf
cat: /etc/apt/apt.conf: No such file or directory
ravi@UNIX(4:~$ sudo fuser -vvv /var/lib/dpkg/lock
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo fuser -vvv /var/cache/apt/archives/lock
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.10
DISTRIB_CODENAME=utopic
DISTRIB_DESCRIPTION="Ubuntu 14.10"
ravi@UNIX(4:~$ uname -a
Linux UNIX(4.0 BSD) 3.16.0-43-generic #58-Ubuntu SMP Fri Jun 19 11:03:03 UTC 2015 i686 i686 i686 GNU/Linux
ravi@UNIX(4:~$ sudo rm /var/lib/apt/lists/lock
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo rm /var/cache/apt/archives/lock
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo rm /var/lib/dpkg/lock
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo mv /var/lib/dpkg/status /var/lib/dpkg/status-bad
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo cp /var/lib/dpkg/status-old /var/lib/dpkg/status || sudo cp /var/backups/apt.extended_states.0 /var/lib/dpkg/status
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo mv /var/lib/dpkg/available /var/lib/dpkg/available-bad
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo cp /var/lib/dpkg/available-old /var/lib/dpkg/available
sudo: unable to resolve host UNIX(4.0 BSD)
cp: cannot stat ‘/var/lib/dpkg/available-old’: No such file or directory
ravi@UNIX(4:~$ sudo rm -rf /var/lib/dpkg/updates/*
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo rm /var/cache/apt/*.bin
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ sudo mkdir /var/lib/apt/lists
sudo: unable to resolve host UNIX(4.0 BSD)
mkdir: cannot create directory ‘/var/lib/apt/lists’: File exists
ravi@UNIX(4:~$ sudo mkdir /var/lib/apt/lists/partial
sudo: unable to resolve host UNIX(4.0 BSD)
mkdir: cannot create directory ‘/var/lib/apt/lists/partial’: File exists
ravi@UNIX(4:~$ LANG=C;sudo apt-get clean
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ LANG=C;sudo apt-get autoclean
sudo: unable to resolve host UNIX(4.0 BSD)
Reading package lists... Done
Building dependency tree
Reading state information... Done
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
ravi@UNIX(4:~$ sudo dpkg --configure -a
sudo: unable to resolve host UNIX(4.0 BSD)
Setting up postfix (2.11.1-1ubuntu1) ...
/var/lib/dpkg/info/postfix.postinst: 297: [: UNIX(4.0: unexpected operator

Postfix configuration was not changed. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).

After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.

Running newaliases
newaliases: warning: valid_hostname: invalid character 40(decimal): UNIX(4.0 BSD)
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: UNIX(4.0 BSD)
dpkg: error processing package postfix (--configure):
subprocess installed post-installation script returned error exit status 75
dpkg: dependency problems prevent configuration of mailutils:
mailutils depends on default-mta | mail-transport-agent; however:
  Package default-mta is not installed.
  Package postfix which provides default-mta is not configured yet.
  Package mail-transport-agent is not installed.
  Package postfix which provides mail-transport-agent is not configured yet.

dpkg: error processing package mailutils (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.19-10ubuntu2.3) ...
Errors were encountered while processing:
postfix
mailutils
ravi@UNIX(4:~$ sudo dpkg --clear-avail
sudo: unable to resolve host UNIX(4.0 BSD)
ravi@UNIX(4:~$ LANG=C;sudo apt-get -f install
sudo: unable to resolve host UNIX(4.0 BSD)
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up postfix (2.11.1-1ubuntu1) ...
/var/lib/dpkg/info/postfix.postinst: 297: [: UNIX(4.0: unexpected operator