Issue Backspace key and history don't work in chroot SSH Terminal

[Jens Johansson]

Server operating system version

AlmaLinux 8.9

Plesk version and microupdate number

18.0.59 Update #2

Hi,
we have two issues with the SSH Terminal extension with chrooted ssh access. In the chroot shell Backspace is not working. Instead of deleting, it adds a space. And the history got a problem too. When I press arrow up once it shows correctly the last entry, but on a second press it just concatenates the entries. So for example if my last commands were ls, cd, mc and I press arrow up three times it would print “lscdmc” instead of mc.

I already tried this without effect: Issue - Backspace key doesn't work when logged in chroot account

Has anyone an idea what to do, to fix this?

 

[JuanjoSC]

I have solved it this way in Almalinux:


**Logging in as root:**

1. **Download the script**:
Start by downloading the necessary script with the following command:

curl -o update-chroot.sh https://raw.githubusercontent.com/plesk/kb-scripts/master/update-chroot/update-chroot.sh

2. **Make the script executable**:
Change the permissions of the downloaded script to make it executable by running:

chmod +x update-chroot.sh

**Execution steps:**

3. **Copy terminfo directory**:
Copy the terminfo directory to the chroot environment to ensure the terminal type information is available:

cp -a /usr/share/terminfo/ /var/www/vhosts/chroot/usr/share/

4. **Copy the inputrc file**:
The inputrc file contains settings for the readline library, which handles input for many command-line programs. Copy it with:

cp /etc/inputrc /var/www/vhosts/chroot/etc/

5. **Apply the changes**:
Finally, apply the changes to ensure the chroot environment is updated. Execute the script by running:

./update-chroot.sh --apply all

 

[Jens Johansson]

Thank you @JuanjoSC! I think I missed the step:

cp -a /usr/share/terminfo/ /var/www/vhosts/chroot/usr/share/

Now it is working.