grub2 创建 archiso 入口(menuentry)

不推荐直接更改/boot/grub/grub.cfg, 我选择修改/etc/grub.d/40_custom, 这样的话每次grub-mkconfig都会自动把该文件里的内容追加到 grub.cfg 里, 参考Configure GRUB得出如下配置文件:

::: code-group

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

probe -u $root --set=rootuuid
set imgdevpath="/dev/disk/by-uuid/$rootuuid"
menuentry 'ArchLinux-x86_64.iso' {
        set isofile='/iso/archlinux-2023.07.01-x86_64.iso'
        loopback loop $isofile
        linux (loop)/arch/boot/x86_64/vmlinuz-linux img_dev=$imgdevpath img_loop=$isofile earlymodules=loop
        initrd (loop)/arch/boot/intel-ucode.img (loop)/arch/boot/amd-ucode.img (loop)/arch/boot/x86_64/initramfs-linux.img
}

:::

需要说明的是我把 archiso 放在了/boot/iso/目录下, 除了 iso 的版本或存放路径可能不一样, 其他地方如果不出意外的话无需特别修改.

修改完后重新grub-mkconfig -o /boot/grub/grub.cfg即可

::: info iso 可从 archlinux - tuna 下载 :::