10.04 LTS to version 14.04 LTS


#sudo do-release-upgrade


#input password.

   Do you want to continue?  "choose Yse"

   continue installing

   Welcome to Ubuntu 12.04 xxxxxxxxxx


#sudo do-release-upgrade

    No new release found


#sudo do-release-upgread -d

   printed 'trusty.tar.gz' ! -> not a developer version.

   if you want upgrade version, you choose Yes

 

출처 : https://www.youtube.com/watch?v=EkrpkzMQmSU


Update Ubuntu Server


1. 빠른 Update를 위해 /etc/apt/source.list의 서버주소를 변경한다.

#vi /etc/apt/source.list

   http://kr.archive.ubuntu.com/ubuntu/를 http://ftp.daum.net/ubuntu/로 수정


2. Package Updates

#sudo apt-get update

#sudo apt-get upgrade


3. Reset Dependency Flags

#suto apt-get autoremove


4. Install Update Manager

#sudo apt-get install update-manager-core

#sudo vi /etc/update-manager/release-upgrades

   Prompt=lts추가


4. Begin Upgrade

#sudo do-release-upgrade


5. check version

#cat /etc/issue

 


* 참고 할만한 자료 - Linux Configuration File :  http://www.comptechdoc.org/os/linux/commands/linux_crspfiles.html


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