I have Ubuntu 14.04 LTS installed on a Dell OptiPlex GX520, 80GB HDD. I started seeing messages about insufficient space in the boot partition so I ran AutoClean. When I rebooted the system, "Bleachbit" launched. Its dialog box shows in the upper, left corner of the display and I am unable to dismiss it. The only thing I can do is select Preview or Delete and choose the options I want. Whatever I select, the app appears to begin working, then the screen goes dim and they system seems to freeze. I cannot do anything at that point except reboot the computer. When I do, the same thing occurs.
I have attempted to boot from CD, but get a message telling me that the boot device is not present, even though that device shows in BIOS and is selected as the primary device.
Note that the drive is encrypted and I have to provide the key before the system will complete the boot process.
Can you assist?
Respectfully,
Fergie
Thanks for the responses folks. I have tried to launch a terminal but no joy. The Ctl+Alt+T sequence has no effect. I do not see a terminal window on the screen. The only thing that gets a response from the system is Ctl+Alt+Del, which brings up system monitor. I have tried booting from the CD from which I originally installed Ubuntu, but keep getting the error "The selected boot device is not available".