I have a Samsung Series 3 laptop and want to boot from an Ubuntu Live CD. When I press F10 to pull up the BIOS/boot configuration, I don't get an option to boot from the CD. Similarly, in the BIOS, I can see that the optical drive is present, but under Boot Options I can only select the hard drive as a boot device.
The CD is not offered as a boot option because Secure Boot is enabled. Before you can boot from a CD, you must do the following:
- Upon powering on the laptop, press
- Select the option to modify the BIOS settings
- Go to the
- Set BIOS mode to
UEFI and Legacyor
CSM and UEFI OS
- Save settings and reboot
- When the Samsung screen comes up again, press
- Now when you try to select a boot device, the optical drive will be listed
With certain Samsung notebooks (like the 300E) holding F3 during boot will bring up the Boot from Disc option.