Installation from USB - not booting

[ron177]

I have an older Ubuntu on my computer. Just made a bootable USB image, but the computer doesn't recognize the file. How should I boot from my USB? I tried holding D and Control or D all by itself, or D along with Shift when restarting my machine, but these methods have not worked. Any thoughts?

Thanks,

R

[oldfred]

How did you make Ubuntu installer? You cannot just copy ISO file to flashdrive.
https://help.ubuntu.com/community/Installation/FromUSBStick
or these should then work:
https://help.ubuntu.com/community/mkusb
https://wiki.ubuntu.com/Win32DiskImager/iso2usb

How old is system?
If very old may not boot from USB port.
Or may boot as another hard drive entry in BIOS, not USB entry.

What brand/model system? What video card/chip?\
May show BIOS boot menu with f10 or f12 or del key.

UEFI/BIOS Boot keys by brand - about halfway down on this Microsoft page
http://social.technet.microsoft.com/wiki/contents/articles/12911.tips-for-configuring-your-bios-settings-to-work-with-windows-to-go.aspx


If older system, Ubuntu may be too much. Ubuntu with Unity is more for newer systems with decent video card/chip.
Older systems work well with lightweight flavors, Lubuntu, Xubuntu, or Mate.

Current Releases & Flavors
https://wiki.ubuntu.com/Releases
https://wiki.ubuntu.com/UbuntuFlavors
Kubuntu, Edubuntu, Xubuntu, UbuntuStudio, Lubuntu, Ubuntu GNOME, Ubuntu Kylin, Ubuntu MATE & new in 17.04 Ubuntu Budgie
Mythbuntu discontinued Nov 2016 MythTV will continue to be available from the repositories just like any other package.