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leonchik1976
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Joined: 24 Jan 2010
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PostPosted: Mon Oct 01, 2018 9:56 am    Post subject: grub-install problem Reply with quote

Trying to install a new machine, and when i run:
Code:
grub-install --target=x86_64-efi --efi-directory=/boot/efi


i get error:
"Could not prepare Boot variable: No such file or directory"

what can i do or check to resolve this?
/boot/efi seems to be mounted correctly and formatted as vfat:

/dev/sda1 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,relatime)


any help would be appreciated
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leonchik1976
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PostPosted: Mon Oct 01, 2018 9:59 am    Post subject: Reply with quote

efibar version that installed, is: sys-libs/efivar-36
when tried to downgrade it to sys-libs/efivar-35 - grub-install seems to work correctly, without errors, but system couldn't boot.

upgrading back to sys-libs/efivar-36 - the same problem
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Alexander Mihalicyn
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PostPosted: Mon Oct 01, 2018 10:07 am    Post subject: Reply with quote

Hi,
can you check and show
Code:

efibootmgr --verbose


Quote:

grub-install seems to work correctly, without errors, but system couldn't boot.

At what stage of boot system fails? Not bootloader found/grub fail/kernel fail?

Have you any OS except gentoo on you disk?
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leonchik1976
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PostPosted: Mon Oct 01, 2018 10:15 am    Post subject: Reply with quote

this is new VMware machine
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leonchik1976
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PostPosted: Mon Oct 01, 2018 10:27 am    Post subject: Reply with quote

tried again to downgrade efivar to version 35 and now it boots
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klz
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PostPosted: Fri Nov 16, 2018 12:06 pm    Post subject: Reply with quote

Thanks!!

This (downgrading sys-libs/efivar from v36 to v35) was the solution for my recent "Could not prepare Boot variable: No such file or directory" -problem as well.

Lately I was not able to add new efibootmgr entries, apparently since upgrading to v36 (on Oct 22 of 2018).
After masking v36 and downgrading to v35 all is good again.
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