[Tex/LaTex] How to install TeX Live offline on Ubuntu

installingofflinetexlive

My laptop is running Ubuntu 14.04.
I am trying to install "vanilla" TeX Live,
following the instructions found in this answer.

Unfortunately, it seems to take a very long time (~18 hours)
to download all of the packages.

$ sudo ./install-tl
...
Installing [0345/3406, time/total: 01:55:31/17:46:13]: biblatex-phys [411k]
Installing [0346/3406, time/total: 01:56:03/17:49:26]: biblatex-publist [308k]
Installing [0347/3406, time/total: 01:56:05/17:48:28]: biblatex-realauthor [94k]
Installing [0348/3406, time/total: 01:56:36/17:52:50]: biblatex-sbl [699k]
Installing [0349/3406, time/total: 01:56:38/17:50:15]: biblatex-science [368k]
Installing [0350/3406, time/total: 01:57:10/17:53:37]: biblatex-shortfields [82k]
Installing [0351/3406, time/total: 01:57:11/17:53:26]: biblatex-source-division [66k]
...

I'm quite surprised that it takes such a long time
to download all of the packages.
Is there a way to speed up the process by installing from an offline file
which contains all of the packages inside?

I do have access to a computer in my office,
which could probably download the packages more quickly
because it has a wired Internet connection
as opposed to my laptop's wireless Internet connection.

Best Answer

As mentioned by Biki Teron and DG', it is possible to download an ISO file texlive2016.iso. I was able to download the file in my office computer, which took about 30 minutes.

To install TeX Live from the ISO file:

$ sudo mkdir /media/iso
$ sudo mount -o loop texlive2016.iso /media/iso/
$ cd /media/iso
$ sudo ./install-tl
...
Installing [0060/3252, time/total: 00:10/10:09]: aichej [7k]
Installing [0061/3252, time/total: 00:10/10:09]: ajl [7k]
Installing [0062/3252, time/total: 00:10/10:09]: akktex [16k]
Installing [0063/3252, time/total: 00:10/10:09]: akletter [208k]
Installing [0064/3252, time/total: 00:10/10:05]: alegreya [4672k]
Installing [0065/3252, time/total: 00:11/09:47]: aleph [31k]
...

Notice that the time to install is much faster, about 10 minutes compared to 18 hours to install from packages downloaded online.

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