GNU/Linux Ubuntu 20.04 Chroot Guide
Hi! The Tutorial Shows in Easy Steps How to Properly Chroot Ubuntu 20.04 Focal LTS GNU/Linux Systems with Network Enabled.
Hence, Chrooting in Ubuntu 20.04 consist in Changing the root Directory on a Different Partition from the Boot System.
And Chroot is also defined as the Operation that Changes the Apparent root Directory for the Current Running Process and their Children.
Especially relevant: the Chroot is usually achieved Starting up the System with a Live OS Media.
As a Result you’ll be Able to Operate on the New Root Device pretty like a regularly Started System with Networking.
1. Unmounting Target
Then Find Out the New Root Target Drive
First, Login as SuperUser to make easier the Commands execution:
su –Then look into the List of the Mounted devices with:
If You can Not to Find it then try Visually with GParted:
Possibly Unmount it with:
umount /dev/sd[XN]Just Replace [XN] with the actual Device’s Identifier.
How-to Quick-Start with Command Line on Ubuntu LinuxCommand Line Ubuntu QuickStart Guide
2. Mounting Root
Mount the New Root Target Device
Firt make a New Directory by:
mkdir /mnt/newrootAnd then to Mount:
mount /dev/sd[XN] /mnt/newroot
3. Mounting Pseudoterminal
Hence Mount the Pseudoterminal Slave
First, make the Target folder:
if [ ! -d "/mnt/newroot/dev/pts" ]; then mkdir /mnt/newroot/dev/pts; fiAnd then Mount it with:
mount -t devpts none /mnt/newroot/dev/pts