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Ubuntu stuck in BIOS boot menu

 
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post #1 of 2 (permalink) Old 04-02-2019, 08:44 AM - Thread Starter
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Ubuntu stuck in BIOS boot menu

I've seen posts about dual-booting and editing the UEFI but nothing to help me so, here goes....

I'm a glutton for punishment so I quadruple boot. Windows XP on a 1TB drive, Windows 7 on a 2TB drive, Windows 10 on a SSD and, finally, LinuxMint on an external USB SSD (which, incidentally, has bad sectors from an older Windows 10 install but works just fine with Linux). "Why?" you might ask. Because I can.

Windows 7 and 10 use the UEFI bootmanager (actually from an EFI partition on the Windows 10 SSD), XP and the external Linux installs did NOT use UEFI. Because of this, EasyBCD won't work editing the boot menu. So, I enter the BIOS, select F8, select the entry I want to boot into and so on. I know, pain in the butt.

My problem is that in that BIOS boot menu, I have an old entry for UEFI Ubuntu which I don't need anymore. I have tried bcdedit commands, VisualBCD, and EasyUEFI to delete the entry. They all SAY it deleted but when I reboot and go into BIOS, it's still there. Easus PartitionMaster shows the partition on the SSD that contains the EFI entries (Windows and ubuntu) but I can't edit it and I certainly don't want to delete that partition. I don't want to take the chance that I'd have to reinstall Windows 10 OR 7. It's not worth it for such a minor annoyance.

If this didn't confuse the hell out of anyone, any suggestions? The added entry doesn't cause any problems other than just being annoying.

TIA.
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post #2 of 2 (permalink) Old 08-28-2019, 04:57 PM
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I don't know if it will work, probably not because of your configuration, and the whole system being mixed (not full EFI), but have you tried updating grub while Linux is running? Do you even use Grub as a boot loader?

After booting Ubuntu you should be able to delete that partition (the old Ubuntu one), then edit grub.cfg or /etc/grub.d or whatever manually amd remove the entry to it, then update-grub and as long as every partition you need is in the grub config file, it should regenerate your bootloader and remove the entry.

Dont do any if this without heavy research first though. What I'm saying though, is try from the ubuntu side. Hope this helps!

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Last edited by neurotix; 08-29-2019 at 08:36 AM.
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