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ubuntu tutorials installation download issues etc

 

How to Enable root login Ubuntu

 

login to terminal enter below command.

 

sudo passwd root

 

enter new password & confirm

 

1st time: News password

 

and confirm the same

New password

 

Now open the nano /etc/lightdm/lightdm.conf file and add the following lines(Create if not exist).

 

Paste the below code

 

[SeatDefaults]
greeter-session=unity-greeter
user-session=ubuntu
greeter-show-manual-login=true

 

Then, save the file and restart.

 

To disable root login ubuntu try below command

sudo passwd -dl root

 

How to Dual Boot Windows & Linux (Ubuntu)?

 

If you are already installed windows 10. then again insert a CD ROM of USB Drive to desktop or laptop.

Proceed to install and Select the Preferred Driver or same drive. after installation, you will see every time dual boot Options.

It’s maybe better to install Ubuntu on other drive partitions of the hard disk.

 

Ubuntu and Debian vs Redhat, Fedora, Centos

  1. All of above are Linux distributions.
  2.  Debian is Parent of Ubuntu (main difference Debian releases new versions longtime bais stable versions. while releases new versions within months).
  3. Redhat, Fedora, centos are owned by RHEL Company. (Redhat is premium and centos are free, fedora maybe for beta testing between centos and ReDthat.

 

Ubuntu download

 

Latest Version 17.10

 

https://www.ubuntu.com/download

 

Ubuntu issues

 

boot/grub/i386-pc/normal.mod not found

grub secure/
ls
ls (hd0,msdos1)/
set root=(hd0,msdos1)
ls /
set prefix=(hd0,msdos1)/boot/grub
insmod /boot/grub/linux.mod
normal
above solutions work most of the cases, but if you moved accidentally boot files to another folder in the command line with sudo permissions. then you may look for other sources. or reinstall or mount new disk etc.

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