# UEFI Installation fails Bootloader install (Error 1)

**URL:** <https://forum.endeavouros.com/t/uefi-installation-fails-bootloader-install-error-1/21782>\
**Category:** EndeavourOS installation\
**Created:** [December 25, 2021, 1:34am UTC](https://forum.endeavouros.com/t/uefi-installation-fails-bootloader-install-error-1/21782 "2021-12-25T01:34:53Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![jonathon](https://forum.endeavouros.com/user_avatar/forum.endeavouros.com/jonathon/32/18722_2.png) [@jonathon](https://forum.endeavouros.com/u/jonathon)\
**Post date:** [December 25, 2021, 3:18pm UTC](https://forum.endeavouros.com/t/uefi-installation-fails-bootloader-install-error-1/21782/5 "2021-12-25T15:18:00Z")

</div>

> [@piransu](#):
>
> `Could not prepare Boot variable: No space left on device`

Something filled your EFI variables space. It’s probably due to kernel dump files which you can clear with:

```auto
sudo rm /sys/firmware/efi/efivars/dump-*

```

The other thing to check is whether you have obsolete boot variables:

```auto
efibootmgr -v

```

but this is less likely to be the issue.

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