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Metalhead730
n00b
Joined: 05 Oct 2018
Posts: 2
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 Posted: Sun Oct 07, 2018 6:40 am Post subject: Grub Boot Problems. |
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I was attempting to install grub2 using an MBR. After emerging grub2, and running a grub-install or grub-install /dev/sda I getting the following error
| Code: | Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory. |
My partition table is laid out:
| Code: |
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 268287 266240 130M 83 Linux
/dev/sda3 268288 6559743 6291456 3G 82 Linux swap / So
/dev/sda4 6559744 117231407 110671664 52.8G 83 Linux
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I think I made a few mistakes along the way with the part tables, and not sure how to fix it. I tried playing with gparted, and it is still not working. Any suggestions would be most helpful. |
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Muso
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Joined: 22 Oct 2002
Posts: 1052
Location: The Holy city of Honolulu
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| Posted: Sun Oct 07, 2018 6:45 am Post subject: |
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Your boot partition should be a vfat partition, not an ext* partition for efi.
Here's my fstab as an example :
| Code: | /dev/sda2 /boot vfat noauto,noatime 0 2
/dev/sda3 none swap sw 0 0
/dev/sda4 / ext4 noatime 0 1
/dev/sr0 /mnt/cdrom auto noauto,ro 0 0
/dev/sdc1 /storage ext4 noatime 0 2 |
So you will need to change your boot partition to vfat.
| Metalhead730 wrote: | | I think I made a few mistakes along the way with the part tables, and not sure how to fix it. I tried playing with gparted, and it is still not working. Any suggestions would be most helpful. |
Which iso are you using to install?
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2021 is the year of the Linux Desktop! |
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eccerr0r
Watchman
Joined: 01 Jul 2004
Posts: 9677
Location: almost Mile High in the USA
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| Posted: Sun Oct 07, 2018 7:30 am Post subject: |
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OP: If you really wanted to use MBR, did you accidentally set GRUB_PLATFORMS to efi-64 in your /etc/portage/make.conf?
Doing so will build the EFI version, which isn't what you want. It may still have built MBR, I'm not sure, you may need to add i386-pc to that variable and rebuild grub.
If you installed more than one platform you could try adding --target=i386-pc to use MBR:
| Code: | | # grub-install --target=i386-pc /dev/sda |
Make sure the partition /boot is on is mounted if needed, and it can be ext2 or anything grub understands. For EFI GRUB2 installs, grub needs to be installed on the ESP and thus would need to be FAT formatted as EFI does not understand EXT2fs.
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Metalhead730
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Joined: 05 Oct 2018
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| Posted: Sun Oct 07, 2018 7:35 am Post subject: |
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I am using the hybrid iso. I also reformatted /dev/sda1 as vfat, edited /etc/fstab. Still coming up the same errors.
I am installing this on an old MacBook, which I believe has a 32bit efi, despite having a 64bit cpu, hence wanting to go MBR. |
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Muso
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Joined: 22 Oct 2002
Posts: 1052
Location: The Holy city of Honolulu
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| Posted: Sun Oct 07, 2018 7:39 am Post subject: |
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| Metalhead730 wrote: | I am using the hybrid iso. I also reformatted /dev/sda1 as vfat, edited /etc/fstab. Still coming up the same errors.
I am installing this on an old MacBook, which I believe has a 32bit efi, despite having a 64bit cpu, hence wanting to go MBR. |
Then you have no need for vfat.
Read the handbook very carefully as you install. Read it twice before each step. Anything pertaining to efi can be ignored, as you are doing an MBR install.
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2021 is the year of the Linux Desktop! |
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