File `etoolbox.sty' not found. ^^M

C: 5th February 2017M, Sun. / 9 Jamadilawal 1438H, Mon. [Ubuntu 16.04]
P: 27th April 2017M, Thu. / 1 Syaaban 1438H, Fri. [Ubuntu 16.04]
U:

Assalamualaikum. After 'the move', with the new system in place and everything a clean install, this is the second noticeable problem i came across. What happened was, i tried to compile a LaTeX document in Kile and was issued this error, and see Pic 1:

./pantun.tex:53:File `etoolbox.sty' not found. ^^M

Pic 1 - The etoolbox error.

Read about 'the move', here:
The move to Ubuntu 16.04
http://ubuntudigest.blogspot.my/2016/12/the-move-to-ubuntu-1604.html

Read the definition of clean install, here:
http://lookup.computerlanguage.com/host_app/search?cid=C999999&term=clean+install

It seems someone else faced the same LaTeX build/compile error, which also happened after upgrading their Ubuntu system:
TeX problem
https://ubuntuforums.org/showthread.php?t=2349984
In that thread, someone mentioned texlive-latex-extra package.

A search in Ubuntu Software turned-up no etoolbox (see Pic 2) nor texlive package (see Pic 3). Weird, because Ubuntu Software is where you go to to find and fulfill all your Ubuntu needs. And it's where i, previously (before 'the move'), find my LaTeX-related packages.

Pic 2 - Ubuntu Software. No etoolbox package.

Pic 3 - Ubuntu Software. No texlive package.

If
Androidians find their apps in the Play Store, and
Appleians find their supply in iTunes, then
Ubuntunians find theirs in Ubuntu Software.

If the package is not in Ubuntu Software, then where is it?
-- The second place to go to is Synaptic Package Manager.

This post is divided into four parts:
Part A: Install Synaptic Package Manager
Part B: Install etoolbox
Part C: Test the installation
Part D: Note



Part A: Install Synaptic Package Manager

In previous versions of Ubuntu, Synaptic Package Manager came installed along with the Ubuntu system. But starting from whatnumber, Synaptic had to be installed on your own.

Note for 11.10 release and above

Synaptic is no longer installed by default in Ubuntu 11.10, however it is still useful in some situations.

Source: SynapticHowto
https://help.ubuntu.com/community/SynapticHowto

If you already have Synaptic Package Manager present in your system, skip this part and proceed to the next part.

If you don't have Synaptic Package Manager present in your system, proceed with this part.


1. Load Ubuntu Software.


1. Click the Dash icon in the Launcher.


2. In the search field, type in: ubuntu software


3. Click the Ubuntu Software icon.

See Pic 4.

The loaded Ubuntu Software window looks something like Pic 5.

Pic 4 - Launching Ubuntu Software.

Pic 5 - Ubuntu Software, loaded.
(Two separate screenshots were stitched to make this picture.)

Pic 6 - The Ubuntu Software version.

Read about launch, load, here:
never say
http://lookup.computerlanguage.com/host_app/search?cid=C999999&def=6e6576657220736179.htm

Read about dialog box, here:
http://lookup.computerlanguage.com/host_app/search?cid=C999999&term=dialog+box

Read about window, here:
http://lookup.computerlanguage.com/host_app/search?cid=C999999&term=window


2. Search for the Synaptic Package Manager package.

In Ubuntu Software, in the search field, type in: synaptic

See Pic 7.

Pic 7 - Ubuntu Software. Searching for the Synaptic Package Manager package.

3. Install the Synaptic Package Manager package.


1. To read the package description, simply click the package in the filtered list. See Pic 8.


2. To install the package, click the Install button. See Pic 7 and Pic 8.


3. The Authenticate dialog box will appear. Fill-in your password in the Password field, then click the Authenticate button. See Pic 9.

Pic 8 - Ubuntu Software. More info about the Synaptic Package Manager package.

Pic 9 - The Authenticate dialog box. Authenticate before installing the package.

4. Close Ubuntu Software.

Once the installation is completed, you can close Ubuntu Software.



Part B: Install etoolbox

5. Load Synaptic Package Manager.


1. Click the Dash icon in the Launcher.


2. In the search field, type in: synaptic


3. Click the Synaptic Package Manager icon.

See Pic 10.


4. The Authenticate dialog box will appear. Fill-in your password in the Password field, then click the Authenticate button. See Pic 11.

The loaded Synaptic Package Manager window looks something like Pic 12.

Pic 10 - Launching Synaptic Package Manager.

Pic 11 - The Authenticate dialog box for Synaptic Package Manager.

Pic 12 - Synaptic Package Manager, loaded.

Pic 13 - The Synaptic Package Manager version.

6. Search for the etoolbox package.


1. In the Synaptic Package Manager window, click the Search button.

The Find dialog box will appear.


2. In the Find dialog box,

i. in the Search field, type in: etoolbox

ii. In the Look in list, choose: Description and Name

iii. Then click the Search button.

See Pic 14.

The list will be updated with the search results.

Pic 14 - Synaptic Package Manager. Searching for the etoolbox package.

7. Install the etoolbox package.


1. In the Synaptic Package Manager window, in the All section, click etoolbox.


2. In the Package column, click the etoolbox package.

The package description will be displayed in the right-bottommost section of the window.


3. In the S column, click the box for the etoolbox package.

A menu will appear.


4. In the menu, click the Mark for Installation option. See Pic 15.

The synaptic dialog box will appear. See Pic 16.

Pic 15 - Synaptic Package Manager. Marking the etoolbox package for installation.

5. In the synaptic dialog box, click the Mark button. See Pic 16.

The list of marked packages in the Synaptic Package Manager window will be updated. See Pic 17.

Pic 16 - The synaptic dialog box. Marking additional packages.

6. In the Synaptic Package Manager window, click the Apply button. See Pic 17.

The Summary dialog box will appear. See Pic 18.

Pic 17 - Synaptic Package Manager. The updated list of marked packages for installation.

7. In the Summary dialog box, click the Apply button. See Pic 18.

The Downloading Package Files dialog box will appear. See Pic 19.

Allow some time for the package to be downloaded depending on your Internet speed, and installed.

Installed packages have a green box in the S column. See Pic 20.

Pic 18 - The Summary dialog box.

Pic 19 - The Downloading Package Files dialog box.

Pic 20 - Synaptic Package Manager. The marked packages are now installed.

8. Close Synaptic Package Manager.

Once the installation is completed, you can close Synaptic Package Manager.



Part C: Test the installation

9. Load your LaTeX editor.

I use Kile.

In case you want to use Kile but can't find it in your system, then you will need to install Kile first. Kile doesn't come installed with Ubuntu. You will have to install it yourself.


1. Click the Dash icon in the Launcher.


2. In the search field, type in: kile


3. Click the Kile icon.

See Pic 21.

The loaded Kile window looks something like Pic 22.

Pic 21 - Launching Kile.

Pic 22 - Kile, loaded.

Pic 23 - The Kile version.

10. Compile your document.


1. Load your document.


2. Compile your document. See Pic 24.

I use XeLaTeX.

The etoolbox error should be gone and your document compiled successfully. See Pic 25.

Pic 24 - Kile. Compiling the document.

Pic 25 - The etoolbox error is gone.

Part D: Note

Notice the [XeLaTeX] failed to start 'error' in Pic 1 and Pic 25?

This is a separate problem altogether. At this point of this post, while trying to document the problem (and at the same time troubleshoot it), i somehow stumbled upon the solution. Although the 'error' is solved and now gone, I'm not going to re-do the pictures, so i will leave things as it is.


Alhamdulillah.

The move to Ubuntu 16.04

C: 17th November 2016M, Th / 17 Safar 1438H, Th. [Ubuntu 16.04]
P: 27th December 2016M, Tu / 27 Rabiulawal 1438H, Tu. [Ubuntu 16.04]
U:

Pic 1 - Ubuntu 16.04. My current system, after the clean install.

Assalamualaikum. Somewhere in August i did an in-place upgrade (see Pic 2) for the operating system on my laptop, from Ubuntu 14.04 Trusty Tahr (see Pic 3) to Ubuntu 16.04 LTS Xenial Xerus (see Pic 4).

Pic 2 - Upgrade option.

Pic 3 - Ubuntu 14.04. My previous system.

Pic 4 - Ubuntu 16.04. My 'new' system, after the in-place upgrade.

Read about in-place upgrade, here:
http://lookup.computerlanguage.com/host_app/search?cid=C999999&term=in-place+upgrade

At first the new system (Pic 4) was okay, although there was both Ubuntu Software Center (from Ubuntu 14.04) and Ubuntu Software (from Ubuntu 16.04) appearing at the same time in the list of Applications. Sorry, no screenshot. :(

The last time the system was running fine before any problem started, what i did, i think, was, i switched the laptop to Suspend mode, then left it like that until the battery ran out a few days later. The next time i started-up the system, that was when the first problem started. And it wasn't just Ubuntu that had problems, somehow Windows 10 did too.

The first problem. The first problem was with the display. Everything on the screen was big, as if a small-sized digital photo was stretched to become the wallpaper for a big-sized digital screen, minus some pixelation. Imagine the screen resolution is best at 1366×768 pixels, but the output resolution is 1024×768 pixels. Later on the problems alternated --depending on which problem i tried to solve-- between the display problem and the login-screen loop problem.

The display problem came from the absence of the graphics driver. But...! Install a driver, any driver, the right driver even, and the login-screen loop problem surfaces at the next system startup. To be absolutely sure i got the correct driver i downloaded the specific driver from NVIDIA's website but no matter which graphics driver was installed it would lead to the login-screen loop.

The second problem. The second problem was the login-screen loop where the login screen would go into a loop; from the login screen (key-in the password then press the Enter keyboard key), a flash of black screen, then taken back to the login screen.

If i installed a driver for graphics, the login-screen loop problem will surface at the next system startup, and will remain for as long as the driver is present in the system. If i removed the graphics driver, login was okay and that i could login, but the display was kind of 'zoomed-in', and sometimes the system would hang after some time for no reason and required a hard restart.

Read about hard restart, here:
https://www.techopedia.com/definition/7520/hard-reboot

Solution? After trying out a few online remedies and combinations, nothing seemed to solve the problems. The foolproof way to make the problems go away is to do a clean install. It was high time for some digital cleaning anyway. Data from Ubuntu and Windows were backed-up on an external hard disk. Abang told to start with Windows, so i started to troubleshoot Windows and later Ubuntu.

Read about clean install, here:
https://www.techopedia.com/definition/3330/clean-install

Windows 10. With Windows, i did a reset where i chose to Keep my files. See Pic 5. The reset process was pretty simple and straightforward. Customizing afterwards took some time.

Pic 5 - Resetting Windows 10 on my laptop and at the same time retaining my personal files from the wipe.

Read more about resetting Windows 10, here:
Everything You Need to Know About “Reset This PC” in Windows 8 and 10
http://www.howtogeek.com/132428/everything-you-need-to-know-about-refreshing-and-resetting-your-windows-8-pc/

Ubuntu 16.04. With Ubuntu, i did a clean install using a pen drive as a startup disk. The startup disk was created on the 'in-place' Ubuntu 16.04 system using the Startup Disk Creator app (see Pic 6 and 7). The process was a breeze, other than setting the disk partitioning; boot, swap and whatever else. I'll need to read-up on that. After the clean install was completed, the pen drive was formated using the Disks app (see Pic 8, 9, and 10).

Pic 6 - The Startup Disk Creator icon.

Pic 7 - The Startup Disk Creator app.

Pic 8 - The Disks icon.

Pic 9 - The Disks app.

Pic 10 - The About for the Disks app.

Creating a startup disk and installing from a pen drive is something i have never done before. What i usually do is burn the ISO image to a DVD disc then install. But this time i couldn't find an empty disc. There were empty CDs but no empty DVDs.

Read about disC and disK, here:
What‘s the difference between a "disc" and a "disk?"
https://support.apple.com/en-us/HT201697
(Basically, DIS-with-a-C are round, and DIS-with-a-K are magnetic.)

Now. Everything seems to be running as supposed to, except for a problem with a Ubuntu font, specifically Ubuntu Light.

Alhamdulillah.