collection of boot loaders (ext2/3/4 and btrfs bootloader)

 SYSLINUX is a collection of boot loaders which operates off Linux ext2/3/4 or
 btrfs filesystems, FAT and NTFS filesystems, network servers using PXE
 firmware, or from CD-ROMs.
 .
 This package contains the ext2/3/4 and btrfs bootloader.