Why did Ubuntu disappear from GRUB after installing Kali Linux?

Question

GRUB

I decided to install Kali Linux alongside Windows 7 and Ubuntu. While installing Kali, I also installed GRUB Kali. And after rebooting the PC, I didn’t see Ubuntu in GRUB Kali. There were only windows 7,
kali linux and an item for additional Kali settings. How to create an item for downloading ubuntu.

Answer 1

In short, I tried everything that is possible and impossible, nothing happened. I installed ubuntu from scratch. But write your answers for others because I did everything.

Answer 2

Probably Grub Kali overwrite data from Ubuntu grub (if it was installed).
To install a third operating system on one disk with mbr, it would first be good to google how it is done correctly.
It was enough to install the Kali OS and register a new entry in Kali in the rough, this is one of the options.

Answer 3

what does sudo update-grub output?

Answer 4

function magicMatch(text) {
    var matches = text.match(/^[^\,]+\,.+\((.+)\)$/);
    if (matches && matches[1]) {
        return matches[1];
    }
    return text;
}
console.log( magicMatch('Saglek, CA (YSV)') ); // YSV
console.log( magicMatch('Saglek Xxx city, CA (YSV)') ); // YSV
console.log( magicMatch('Saglek') ); // Saglek
console.log( magicMatch('Saglek ` Great City (town-city)') ); // Saglek ` Great City (town-city)

Answer 5

var regularVar = /[a-zA-Z0-9]/
var resultArray = regularVar.exec("What the fuck?")

Answer 6

There is no such pattern. The regular either finds what you need or doesn't find it.
Write 2 regular expressions:
1. If there is a quote, return everything without the quote
2. Otherwise, if there are brackets, return everything from the brackets
3. Otherwise, return everything

Answer 7

var pattern = /\((.+?)\)/

Answer 8

in order to write a regular expression, you need to know exactly what it should look for, but your logic is not visible))