Dell Vostro A90 (Late 2008) - Manual (Page 18)

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Restoring Your Ubuntu System
Ubuntu Reinstallation
If you received an Operating System media with
your computer, you can use it to restore your
operating system
NOTICE: However, using the Operating
System media also deletes all data on the
hard drive
NOTE: Your computer may or may not have
an optical drive Use an external optical
drive or any external storage device for the
procedures that involve media
To reinstall Ubuntu, you need a Ubuntu OS
Recovery media
Starting System Restore
Turn Off the computer 1
Plug in an external USB optical disc drive 2
into your computer
Insert the Ubuntu OS Recovery media in the 3
external USB optical disc drive
NOTE: Using the Ubuntu OS Recovery
media deletes all data on the hard disk
Turn On the computer 4
When the DELL logo appears, press <0> 5
immediately
NOTE: The next steps change the boot
sequence for one time only On the next
start-up, the computer boots according to
the devices specified in the system setup
program
When the boot device list appears, highlight 6
CD/DVD/CD-RW and press
Press any key to
7 Boot from CD-ROM Follow
the instructions on the screen to complete
the installation
Restoring Your Ubuntu System