grub - boot live .iso from luks partition

[Nekomata3]

Hello,
is it possible to boot a .iso as alternative linux os (on grub) after I type my luks password? The iso would be located in the home folder, that is encrypted with luks in a lvm, only /boot is unencrypted but it is too small to allocate the .iso, or do I need a bigger /boot partition for that? tried google some boot parameters but none worked.

thank you any help.

[kiyop]

I am not familiar with luks, but I found crypto.mod and lvm.mod and so on in /boot/grub directory. Thus I wonder if grub2 can decrypt the encrypted luks. As you may know, grub2 can loop-mount an iso file by loopback.mod and use its contents.
https://bbs.archlinux.org/viewtopic.php?id=169492
But there is another problem. Even if grub2 can decrypt the luks and can use the contents in the decrypted luks, debian kernel and initramfs must decrypt the luks and use the iso file in the luks. I am not sure if there is such useful live debian iso. Of course, you can manually make such initramfs (and/or kernel) by yourself.
http://live.debian.net/manual/stable/index.en.html

[Nekomata3]

I am not familiar with luks, but I found crypto.mod and lvm.mod and so on in /boot/grub directory. Thus I wonder if grub2 can decrypt the encrypted luks. As you may know, grub2 can loop-mount an iso file by loopback.mod and use its contents.
https://bbs.archlinux.org/viewtopic.php?id=169492
But there is another problem. Even if grub2 can decrypt the luks and can use the contents in the decrypted luks, debian kernel and initramfs must decrypt the luks and use the iso file in the luks. I am not sure if there is such useful live debian iso. Of course, you can manually make such initramfs (and/or kernel) by yourself.
http://live.debian.net/manual/stable/index.en.html

Yes, I'm familiar with booting ISO with grub, I have not find a way to make it load one in an encrypted lvm volume, it may be asking too much of grub...

Thank you.

[Nekomata3]

bump

[kiyop]

If only you can deal with grub2 correctly, you may be able to make it deal the iso file in an encrypted lvm volume. But the second problem seems harder. Be clever!