Package refind: Information

A graphical boot manager for EFI- and UEFI-based computers, such as all
Intel-based Macs and recent (most 2011 and later) PCs. rEFInd presents a
boot menu showing all the EFI boot loaders on the EFI-accessible
partitions, and optionally BIOS-bootable partitions on Macs. EFI-compatbile
OSes, including Linux, provide boot loaders that rEFInd can detect and
launch. rEFInd can launch Linux EFI boot loaders such as ELILO, GRUB
Legacy, GRUB 2, and 3.3.0 and later kernels with EFI stub support. EFI
filesystem drivers for ext2/3/4fs, ReiserFS, HFS+, and ISO-9660 enable
rEFInd to read boot loaders from these filesystems, too. rEFInd's ability
to detect boot loaders at runtime makes it very easy to use, particularly
when paired with Linux kernels that provide EFI stub support.

Please note that the official build is signed; this shouldn't
intervene in any way but rather provides means to cope with
UEFI SecureBoot (better described as Restricted Boot) firmware
when one can't disable it easily, doesn't want to, or needs not to.