sujith@sujith:~$ sudo apt-get install gdebi
[sudo] password for sujith:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package gdebi
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3Possible duplicate of How to install software or upgrade from an old unsupported release?– karelApr 19, 2018 at 8:42
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1Ubuntu 17.04 was not a LTS release; thus had a life of 9 months. If you want/need a longer life for your Ubuntu, please use LTS releases (supported for 5 years). 17.04 was released in 2017-April (why its 17.04) + 9 months = 2018-Jan-13 EOL date. Ubuntu releases are easy to know EOL as just add 5 to year for LTS 16.04+5y=2021.04, or add 9 to month number 17.04+9m=18.01– guivercApr 19, 2018 at 8:53
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1 Answer
Ubuntu 17.04 has reached end of life, as you can see here: https://wiki.ubuntu.com/Releases. This means it receives no further maintenance updates, including critical security upgrades. You should upgrade to a newer Ubuntu version (preferably wait for Ubuntu 18.04 LTS to be released - it's on April 26th).