UEFI （Unified Extensible Firmware Interface) 固件只支持 GPT (GUID Partition Table) 分区，所以在安装系统分区时需要把磁盘分区格式设置为 GPT 格式。
grub-mkconfig -o /boot/grub/grub.cfg
.... many more lines ommitted ....
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Slackware-15.0+ GNU/Linux' --class slackware_15_0_ --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-555b5454-296c-499b-ac88-219d17c7e5b9' {
load_video
insmod gzio
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,gpt2' --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c15c4ceb-7c1b-4ad5-a646-217e0b575d95
else
search --no-floppy --fs-uuid --set=root c15c4ceb-7c1b-4ad5-a646-217e0b575d95
fi
echo 'Loading Linux 6.3.0 ...'
linux /vmlinuz-generic-6.3.0 root=UUID=555b5454-296c-499b-ac88-219d17c7e5b9 ro
echo 'Loading initial ramdisk ...'
initrd /initrd-6.3.0.img
}
.... many more lines ommitted ....
cat >> grub.cfg << EOL
set root=',gpt2'
set prefix=($root)'/grub'
configfile $prefix/grub.cfg
EOL
GRUB_MODS="acpi adler32 affs afs all_video archelp bfs bitmap bitmap_scale \
blocklist boot bswap_test btrfs bufio cat cbfs chain cmdline_cat_test cmp \
cmp_test configfile cpio_be cpio crc64 cryptodisk crypto ctz_test datehook \
date datetime diskfilter disk div div_test dm_nv echo efifwsetup efi_gop \
efinet elf eval exfat exfctest ext2 extcmd fat file font fshelp \
functional_test gcry_arcfour gcry_blowfish gcry_camellia gcry_cast5 \
gcry_crc gcry_des gcry_dsa gcry_idea gcry_md4 gcry_md5 gcry_rfc2268 \
gcry_rijndael gcry_rmd160 gcry_rsa gcry_seed gcry_serpent gcry_sha1 \
gcry_sha256 gcry_sha512 gcry_tiger gcry_twofish gcry_whirlpool geli \
gettext gfxmenu gfxterm_background gfxterm_menu gfxterm gptsync gzio halt \
hashsum hello help hexdump hfs hfspluscomp hfsplus http iso9660 jfs jpeg \
keystatus ldm linux loadenv loopback lsacpi lsefimmap lsefi lsefisystab \
lsmmap ls lssal luks lvm lzopio macbless macho mdraid09_be mdraid09 \
mdraid1x memdisk memrw minicmd minix2_be minix2 minix3_be minix3 minix_be \
minix mmap mpi msdospart mul_test net newc nilfs2 normal ntfscomp ntfs odc \
offsetio part_acorn part_amiga part_apple part_bsd part_dfly part_dvh \
part_gpt part_msdos part_plan part_sun part_sunpc parttool password \
password_pbkdf2 pbkdf2 pbkdf2_test png priority_queue probe procfs \
progress raid5rec raid6rec read reboot regexp reiserfs romfs scsi \
search_fs_file search_fs_uuid search_label search serial setjmp \
setjmp_test sfs shift_test signature_test sleep sleep_test squash4 \
syslinuxcfg tar terminal terminfo test_blockarg testload test testspeed \
tftp tga time trig tr true udf ufs1_be ufs1 ufs2 video_colors video_fb \
videoinfo video videotest_checksum videotest xfs xnu_uuid xnu_uuid_test \
xzio zfscrypt zfsinfo zfs"
grub-mkimage -p /boot/efi/EFI/BOOT/ --format=loongarch64-efi \
-c `pwd`/grub.cfg --output=/boot/efi/EFI/BOOT/BOOTLOONGARCH64.EFI \
$GRUB_MODS
# 有少量机型的固件可能会识别BOOTLOONGARCH.EFI，基于实际情况制作
# 参数含义
-p 设置偏好文件夹，cfg文件中会调
--format或-d 表示指定查找模块目录
-c 表示指定配置文件，这个配置文件会集成到efi文件内，就是我们刚刚编写的grub.cfg
--output或-o 表示生成的目标文件
