linux16 line is missing from boot screen

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Libra
Posts: 7
Joined: 2021/04/17 22:21:40

linux16 line is missing from boot screen

Post by Libra » 2021/04/17 22:40:51

I'm new to Linux. I started learning recently. I'm learning it my own by watching online videos in Udemy and YouTube. I installed Centos8 in VirtualBox. The lesson I'm learning that how to switch to "rescue.target" mode. I interrupted boot process and pressed "e" from keyboard and found out my screen is totally different then then video I'm watching. I can't see the if else section the whole section is missing for example the following line is not there.

"linux16 /vmlinuz-3.10.0-327.e17.x86_64 root=/dev/mapper/centos-root ........................."

I'm attaching both of the screenshots. Any idea why it is missing? or I did anything wrong? I'm also noticing that last few days it is taking more time to boot.

Thank you for you help.
Attachments
Screen from lesson video
Screen from lesson video
kernel2.PNG (107.41 KiB) Viewed 212 times
Myscreen
Myscreen
kernel.PNG (16.67 KiB) Viewed 212 times

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jlehtone
Posts: 3479
Joined: 2007/12/11 08:17:33
Location: Finland

Re: linux16 line is missing from boot screen

Post by jlehtone » 2021/04/18 07:41:35

The video is from ancient CentOS Linux 7 system. The GRUB package has received some 90 updates between that and your CentOS 8.

It is the "linux" line that has kernel command line options "($root)/vmlinuz .. rhgb quiet". That is the line you add to/modify.

Libra
Posts: 7
Joined: 2021/04/17 22:21:40

Re: linux16 line is missing from boot screen

Post by Libra » 2021/04/18 21:49:35

jlehtone wrote:
2021/04/18 07:41:35
The video is from ancient CentOS Linux 7 system. The GRUB package has received some 90 updates between that and your CentOS 8.

It is the "linux" line that has kernel command line options "($root)/vmlinuz .. rhgb quiet". That is the line you add to/modify.
I added line and it works. Thank you so much!

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