I bought a Toshiba C50D-B-120 almost 10 years ago, and installed Debian Jessie on it. I ended up doing a BIOS install, and thought at the time it was down to my incompetence that a UEFI install had failed.
Yesterday I tried a UEFI install and rebooted to a black screen with the message
Well at least it's good to know that it wasn't my incompetence. As this laptop has been booting Debian in BIOS mode for years, I'm just going to do a BIOS install again, and not bother hacking UEFI.
I've noticed a few forum posts for various distros where an install fails on a Toshiba machine with this message which were never solved and nobody mentioned the link above, so I thought I would put this post up for search engines to find.
More information here:
Yesterday I tried a UEFI install and rebooted to a black screen with the message
There seem to be many reasons why this can occur, but a search specific to the Toshiba Satellite laptop found this:Reboot and select proper boot device
https://ubuntuforums.org/showthread.php?t=2274092Many with Toshiba's found that Toshiba modified UEFI to only boot a UEFI description that says Windows. That is not per UEFI specifications. Those dual booting were able to copy grub to /EFI/Boot folder and use a hard drive UEFI entry that would work.
Others only booting Ubuntu change the name in UEFI to read Windows but really boot grub or shim.
Well at least it's good to know that it wasn't my incompetence. As this laptop has been booting Debian in BIOS mode for years, I'm just going to do a BIOS install again, and not bother hacking UEFI.
I've noticed a few forum posts for various distros where an install fails on a Toshiba machine with this message which were never solved and nobody mentioned the link above, so I thought I would put this post up for search engines to find.
More information here:
https://ubuntuforums.org/showthread.php?t=2147295Systems that only boot Windows from UEFI & using efibootmgr to manage UEFI entries.
Per UEFI standard you should be able to boot any entry in UEFI boot menu. But some vendors have modified UEFI code to only boot the Windows efi file. The UEFI looks for the Windows file name and only boots it. (Note for Acer, it requires "trust" settings in UEFI)
Installing Grub for UEFI secure boot is only possible if you have booted your system using EFI with the 64bit version with secure boot on. A few systems will only boot with UEFI and secure boot on or with CSM (BIOS) if secure boot is off. Best to test system to see which modes it boots in. In secure boot mode it will only show/allow systems that have secure boot. You may have to change UEFI settings or set password to allow other devices to boot.
Statistics: Posted by FreewheelinFrank — 2025-01-03 11:12 — Replies 0 — Views 51