How Do You Become the Root User when You Forgot the Root Password?

Problem scenario
You cannot use sudo because a relevant .so file has been deleted. You do not know the root password, and you are using Fedora. What should you do?

Solution
Change the root password with a bootable DVD or USB drive with the .iso of Fedora. Boot to the DVD or USB drive. Then use these directions.

How Do You Remove OS Options That Are No Longer Valid?

Problem scenario
In a pre-boot menu on your server/desktop/laptop, there is a UEFI/BIOS screen showing a "boot menu" with vestiges of older operating systems that used to be installed. You do not want these displayed because many are corrupt or otherwise deleted. How do you remove the options from the menu?

Possible Solution #1
If you are using Linux, install efibootmgr. Run the efibootmgr command utility to delete the old OSes.

Possible Solution #2
Log into BIOS/UEFI and edit the boot order. There should be an option to delete the ones you see or otherwise prevent them from showing.

Possible Solution #3
Is there a secure drive wipe feature or "factory reset" ability in your BIOS/UEFI (pre-boot menus)? (Sometimes it is entered by pressing F11 during boot up (for some HP and Lenovo machines). Sometimes it is entered at the OS level for some Dell machines.)

How Do You Troubleshoot the error “operator-sdk: cannot find module for path embed”?

Problem scenario
You run "make install" and get an error like this:

build github.com/operator-framework/operator-sdk/cmd/operator-sdk: cannot find module for path embed
make: *** [Makefile:65: install] Error 1

What should you do?

Solution
1. Edit the go.mod file. Replace this line:

module github.com/operator-framework/operator-sdk/

with this line

module github.com/operator-framework/operator-sdk/tree/master/

How Do You Get the Arrow Keys to Not Enter Text when in vi?

Problem scenario
When you enter text in vi you see A, B, C, or D, when you press an arrow key. How do you get vi to act more "normally"?

Solution
Create ~/.vimrc if it doesn't exist. If it does exist, append a stanza "set nocompatible" (without quotes) to the file.

Here are the steps:

vi ~/.vimrc
set nocompatible

Can the Word “Bandwidth” Be Use to Describe an Employee’s Capacity for More Work?

Question
Is it acceptable to ask an employee if they have availability for more work by asking if they have "bandwidth"?

Answer
Yes, but not everyone will know what it means, and some people don't care for this metaphor.

Sources:

https://english.stackexchange.com/questions/57935/is-it-proper-to-use-the-word-bandwidth-as-it-relates-to-time-allotment

https://www.quora.com/What-is-the-meaning-when-your-boss-says-Do-you-have-any-bandwidth-for-a-project

How Do You Troubleshoot a “make install” Command Failing?

Problem scenario
You run a "make install" command, but it fails with a message that says
"error loading module requirements…Makefile …"

What should you do?

Possible solution #1
You do not have enough space on the disk. Can you expand the storage capacity? Then run "go mod tidy" when the server is usable again. Try the "make install" again.

Possible solution #2
You do not have permissions to write to certain directories. Can you try again with the sudo user?

Possible solution #3
The package you downloaded was incomplete, incorrect or became corrupted. Can you use new installation media?

Possible solution #4
Run "make install --debug".

Possible solution #5
Can you search the internet other parts of error message?

How Do You Tweeze or Pluck Gray or White Hairs Quickly?

Problem scenario
You want to pull, pluck or tweeze some gray or white hairs. It can be difficult or time-consuming to grab a single hair follicle. Is there a way to do it without being tedious?

Solution
Use high quality tweezers. (Affordable or cheap tweezers don't work as well; you will spend less time with good tweezers.)