已装win8.1系统,怎么用grub2引导debian和arch的iso镜像实现硬盘安装？

[aocif32]

硬盘分区情况
EFI，C盘，D盘，空闲空间

C盘安装的是win8.1，EFI分区已经安装了GRUB2，debian，arch的iso放在D盘，网上找的硬盘安装ubuntu的方法是成功了，但debian/arch不行，求解。

目前的grub2配置

ubuntu的正常安装

代码： 全选

menuentry "Ubuntu ISO" --class ubuntu --class os {
    insmod ntfs
    insmod loopback
    set root='(hd0,gpt3)'
    set isofile=/ubuntu-22.04-desktop-amd64.iso
    loopback loop $isofile
    linux    (loop)/casper/vmlinuz  boot=casper iso-scan/filename=$isofile
    initrd    (loop)/casper/initrd
}

debian的虽然能成功引导，前几步选择语言都正常，但检测不到安装介质，导致安装不了

代码： 全选

menuentry "Debian ISO" --class ubuntu --class os {
    insmod ntfs
    insmod loopback
    set root='(hd0,gpt3)'
    set isofile='/debian-live-11.3.0-amd64-kde.iso'
    loopback loop $isofile
    linux    (loop)/d-i/vmlinuz  findiso=$isofile
    initrd    (loop)/d-i/initrd.gz
}

更新一下，已经解决
vmlinuz和initrd.gz要从下面连接下载，不能用iso里的
ftp.debian.org/debian/dists/stable/main/installer-amd64/current/images/hd-media/
放iso的分区要ext4格式等等，ntfs格式不行，检测不出iso

我的情况是这样，vmlinuz和initrd.gz放在了第一个fat32分区(EFI分区)的db目录里，硬盘是GPT分区的
grub2配置

代码： 全选

menuentry "Debian ISO" {
    insmod loopback
    set root='(hd0,gpt1)'
    loopback loop
    linux    /db/vmlinuz
    initrd    /db/initrd.gz
}

[astolia]

引用自 https://wiki.debian.org/DebianInstaller ... e_on_a_hdd_...

Q: Running the installer from an iso file on a hdd ...

... requires a kernel, such as vmlinuz, and initrd RAM disk, such as initrd.gz. Can the vmlinuz and initrd.gz in the iso file be extracted and used as in many old examples?

A: No. The vmlinuz and initrd.gz in the iso file serve when booting from an optical drive. When an iso file is used directly from a HDD, "hd-media" vmlinuz and initrd.gz are required. For the Debian stable release the files are in the "hd-media" directory.

另外你可能想尝试一下ventoy。https://www.ventoy.net/cn/index.html

[aocif32]

引用自 https://wiki.debian.org/DebianInstaller ... e_on_a_hdd_...

Q: Running the installer from an iso file on a hdd ...

... requires a kernel, such as vmlinuz, and initrd RAM disk, such as initrd.gz. Can the vmlinuz and initrd.gz in the iso file be extracted and used as in many old examples?

A: No. The vmlinuz and initrd.gz in the iso file serve when booting from an optical drive. When an iso file is used directly from a HDD, "hd-media" vmlinuz and initrd.gz are required. For the Debian stable release the files are in the "hd-media" directory.

另外你可能想尝试一下ventoy。https://www.ventoy.net/cn/index.html

成功，下载了hd-media的2个文件，专门分了个区sda5(NTFS格式)来放ISO镜像，选择介质时选了sda5还是检测不出ISO文件，试了一下在ubuntu livecd下把sda5格式化成ext4格式，再把ISO放进去就检测了，可以正常安装。

谢谢推荐ventoy。