I've EOL release of Ubuntu 13.10. Now I want to upgrade to next release. For this I read many sites. So herein I would like to clarify & confirm ways for the same.
1) This site of ubuntu mentions how to upgrade from 8.10 to 9.04.
It says to make sure the sources.list (/etc/apt/sources.list) has the following:
## EOL upgrade sources.list
# Required
deb http://old-releases.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse
# Optional
#deb http://old-releases.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse
#deb http://old-releases.ubuntu.com/ubuntu/ intrepid-proposed main restricted universe multiverse
Now my sources.list in 13.10 has the following. It doesn't have the words "universe multiverse" as is mentioned above.
# deb cdrom:[Ubuntu 13.10 _Saucy Salamander_ - Release i386 (20131016.1)]/ saucy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://in.archive.ubuntu.com/ubuntu/ saucy main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.archive.ubuntu.com/ubuntu/ saucy-updates main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ saucy universe
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy universe
deb http://in.archive.ubuntu.com/ubuntu/ saucy-updates universe
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://in.archive.ubuntu.com/ubuntu/ saucy multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy multiverse
deb http://in.archive.ubuntu.com/ubuntu/ saucy-updates multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ saucy-backports main restricted universe multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ saucy-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu saucy-security main restricted
deb-src http://security.ubuntu.com/ubuntu saucy-security main restricted
deb http://security.ubuntu.com/ubuntu saucy-security universe
deb-src http://security.ubuntu.com/ubuntu saucy-security universe
deb http://security.ubuntu.com/ubuntu saucy-security multiverse
deb-src http://security.ubuntu.com/ubuntu saucy-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu saucy partner
# deb-src http://archive.canonical.com/ubuntu saucy partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu saucy main
deb-src http://extras.ubuntu.com/ubuntu saucy main
So, do I need to include those words in my sources.list or simply I replace the current codename "saucy" to "trusty" other than replacing "archive.ubuntu.com" to "old-releases.ubuntu.com". Please clarify the codename of 14.04 to be used in the sources.list, is it "trusty" (I feel so) or "trusty tahr". If the code name to be used is "trusty", then I don't know why this Ubuntu site mentions it's codename as "trusty tahr"!!!! Also as the 1st link explains, is it O.K. that I delete all lines from my sources.list (in 13.10) & only include the stated 8 sentences (obviously by replacing with the relevant codename) as mentioned in the 1st code of this Q?
2) Now that 1st link says to run the below commands.
sudo aptitude update && sudo aptitude safe-upgrade
sudo do-release-upgrade
That's all! But this link of Ubuntu also states of installing some meta-packages/dependencies. Please clarify what's these dependencies & is it reqd. to install these? If reqd. then why that link (1st link of upgrading from 8.10 to 9.04) doesn't mention this?
3) Also, one more point I would like to clarify. See rather than doing via cli, I'm getting a way to do via GUI. See if I only replace archive.ubuntu.com to old-releases.ubuntu.com then when I run "software updater", it has option to upgrade as shown below.
So, can my system be upgraded this way even? I'm asking this because I couldn't find this method mentioned for upgrading EOL.
4) This is my last point to ask. (Sorry for extending this thread) Once I run the command to upgrade sudo do-release-upgrade via cli or if I click the "Upgrade" button on the GUI of the updater, is it possible that it doesn't require my intervention or input anymore (assuming no error occurs) to complete the upgrade so that I can run the upgrade process in the night before going to sleep & when I get up it should be done?
Replacing "this" with "that" is covered in the other Q but in a different context & not upgrading to next release- read the whole answer - it does cover upgrading to the next release. 3. The answer includes this image It is not exactly the same but it tells you to click "Upgrade" and it is pretty obvious that you should (how else would you start an upgrade?)