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50de8362наб Fix upstream homepage link 1 year, 19 days ago

#klapki builds.sr.ht badge Licence

EFI boot manager; or, well, an EFI bootorder compiler.



You'll need libssl-dev and libefi{var,boot}-dev, and make should hopefully Just Work™ if you have a C++17-capable compiler.

Note that klapki uses Linux-specific memfd and sendfile() interfaces, and as such building it will fail on other systems. AFAICT libefivar only supports Linux anyway, but these will have to be ported in case it doesn't (patches welcome, &c.).


Copy out/klapki to /sbin and write a /etc/klapki/{description,cmdline}, as seen in the manpage,

#From Debian repository

The following line in /etc/apt/sources.list or equivalent:

deb //debian.nabijaczleweli.xyz stable main

With my PGP key (the two URLs are interchangeable):

wget -O- //debian.nabijaczleweli.xyz/nabijaczleweli.gpg.key | sudo apt-key add
# or
sudo wget -O/etc/apt/trusted.gpg.d/nabijaczleweli.asc //keybase.io/nabijaczleweli/pgp_keys.asc

Then the usual

sudo apt update
sudo apt install klapki

will work on amd64, x32, and i386.

See the repository README for more information.


Remove the variable corresponding to the host under the klapki GUID (a8a9ad3a-f831-11ea-946d-674ccd7415cc).

For example, on Linux, with host "zoot":

chattr -i /sys/firmware/efi/efivars/zoot-a8a9ad3a-f831-11ea-946d-674ccd7415cc
rm        /sys/firmware/efi/efivars/zoot-a8a9ad3a-f831-11ea-946d-674ccd7415cc

This will abandon any previously-managed entries by removing all state, so either run {delkernel ver} for all versions you had registered beforehand, or remove the entries and files later with efibootmgr(8)/EFI shell/the firmware UI.

#Reporting bugs

There's the tracker, but also see the list below.


Send a patch inline, as an attachment, or a git link and a ref to pull from to the list (~nabijaczleweli/klapki@lists.sr.ht) or me directly. I'm not picky, just please include the repo name in the subject prefix.


Please use the tracker, the list, or Twitter.

#Special thanks

To all who support further development on Patreon, in particular:

  • ThePhD
  • Embark Studios