I'm trying to boot an old notebook (Toshiba Satellite 1135-S1553) from USB but so far it didn't work. I have already tried several different ways:
- All 3 USB ports.
- Different USB devices. (USB flash drives and external hard disk drive)
- Different ISO files. (Debian, Peppermint, Tiny Core, etc…)
I'm sure the USB devices + iso were bootable since GNOME Disks showed 'bootable partition' and they all booted on more recent machines.
And I'm pretty sure that the BIOS configuration is properly set:
- Legacy USB support enabled.
- USB device properly shown at the BIOS screen. (ex: Generic USB Flash Disk, ScanDisk or Mass Storage Device)
- Boot order set to begin with removable devices.
Why this machine is not booting from USB? Is it possible that the USB is available at the BIOS boot menu, but actually the hardware does not handle it? How can I be sure that this machine can or can not boot from USB?