|
|
|
|
# Ubuntu
|
|
|
|
|
|
|
|
|
|
## OS Installation
|
|
|
|
|
|
|
|
|
|
Download and boot the [last Ubuntu release](http://releases.ubuntu.com/19.04/ubuntu-19.04-desktop-amd64.iso).
|
|
|
|
|
|
|
|
|
|
Follow the steps :
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The partitioning is :
|
|
|
|
|
|
|
|
|
|
1. 256 MB : EFI partition
|
|
|
|
|
2. 20 GB : system partition
|
|
|
|
|
3. 32 GB : unused partition (will be used later)
|
|
|
|
|
4. rest : unused partition (will be used later)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Remove the installation disk and then reboot.
|
|
|
|
|
|
|
|
|
|
Skip the welcoming window.
|
|
|
|
|
|
|
|
|
|
Don't install updates if Ubuntu asks to. The scripts will.
|
|
|
|
|
|
|
|
|
|
Start the disk utility to name partitions so that OverlayFS can identify them.
|
|
|
|
|
|
|
|
|
|
3. 32 GB - **Partition 3** : `01-tmp-home`
|
|
|
|
|
4. rest - **Partition 4** : `01-tmp-system`
|
|
|
|
|
|
|
|
|
|
The same procedure is required to make USB disk usable for the students, the partition name must be : `01-home`
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## OS configuration
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
student@tmp-hostname:~$ wget github.com/01-edu/public/archive/master.zip
|
|
|
|
|
student@tmp-hostname:~$ unzip master.zip
|
|
|
|
|
student@tmp-hostname:~$ cd public-master/scripts
|
|
|
|
|
student@tmp-hostname:~$ sudo ./install_client.sh
|
|
|
|
|
[...]
|
|
|
|
|
Ask for student user password (will be removed later)
|
|
|
|
|
[...]
|
|
|
|
|
Ask to set the root password
|
|
|
|
|
[...]
|
|
|
|
|
Long installation/configuration process
|
|
|
|
|
[...]
|
|
|
|
|
student@tmp-hostname:~$ cat dconfig.txt | dconf load /
|
|
|
|
|
student@tmp-hostname:~$ reboot
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
The system is now read-only, every data is written to a temporary partition.
|
|
|
|
|
|
|
|
|
|
The session is password-less.
|
|
|
|
|
|
|
|
|
|
To gain a superuser terminal with read/write access to the filesystem, type these commands:
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
student@tmp-hostname:~$ su -
|
|
|
|
|
Password:
|
|
|
|
|
root@tmp-hostname:~# overlayroot-chroot
|
|
|
|
|
```
|
