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MMSC only and EFI install problems

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el_grande_perro
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MMSC only and EFI install problems

#1 Post by el_grande_perro » Wed May 16, 2018 12:17 pm

So I have a Dell Inspiron 11 with only a mmsc flash drive.

I've read a previous post, where I create a separate EFI partition to load the UEFI boot. I've created it Fat32 with EFI/Boot flags. Then I have to
boot legacy mode to see the usb install stick. All works fine.

But when I get to boot install part, I select the mmsc device, I can select ESP option and the mmsc drive and it errors:

Sorry, installing GRUB failed. This may be due to a change in disk formatting....

I think if I don't preformat the partition, you can't select ESP. Is it because I booted in Legacy mode? When I boot for real, I assume I have
to flip back to EFI mode.

I can only say, at least this install identifies or tries to install the alternate booting method

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dolphin_oracle
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Re: MMSC only and EFI install problems

#2 Post by dolphin_oracle » Wed May 16, 2018 12:35 pm

If you boot in legacy mode, grub efi installation is not possible. There are certain drivers that only launch in an efi environment that are necessary for the grub install.

If you boot in legacy, the installer should be offerring mbr by default.
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fehlix
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Re: MMSC only and EFI install problems

#3 Post by fehlix » Wed May 16, 2018 1:44 pm

dolphin_oracle wrote:
Wed May 16, 2018 12:35 pm
If you boot in legacy mode, grub efi installation is not possible.
Well, that's true...normally. For a normal procedure and normal user :happy: .

But, to be precise. What you can do: ( certainly not recommended for novice-linux user!)
->You can install in bios/mbr-mode
-> boot into bios/mbr into MX Linux
-> install grub-efi-packages deb-packages ( if not already present!)
-> create grubx64.efi and place it into /efi/MXLINUX and /efi/BOOT/ rename in the later to default efi-loader
You can not "install" it into UEFI/BIOS-memory yet , but by this procedure above,
you will be able to boot in EFI-Mode into Linux.
Ok you might not have it available within the UEFI-Boot menu, but it will boot it
if you renamed it as the "default" fallback efi-bootloader. (Or just use rEFInd-Menu ) .
You mght than go to reinstall grub within efi-mode to have also present within UEFI-Boot menu.
On GPT-partions you might need a small tiny grubbios-partion just 2 mb or less,
as otherwise bios might be reluctant to boot in bios-mode from GTP-partition ! :alien:
:fox:
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el_grande_perro
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Re: MMSC only and EFI install problems

#4 Post by el_grande_perro » Thu May 17, 2018 2:39 am

After trying a few things, I realized I can install using a portable usb drive that I had on hand, and that worked fine (after resetting the bios settings to EFI only).

i have no doubt that there is a way to recreate what a bootable EFI install from a BIOS one (I saw one for converting to EFI boot from legacy BIOS, which is essentially the same thing.

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