kernel panic after update-initramfs -u -k all

[keiser1080]

Hi,

i followed this tutorial to do Igpu passthrough.
But after update-initramfs -u -k all proxmox do kernel panic
can't open /script/zfs



I have booted using proxmox install usb drive, and chrooted to proxmox

zpool import -f -R /mnt rpool
mount -o rbind /proc /mnt/proc
mount -o rbind /sys /mnt/sys
mount -o rbind /dev /mnt/dev
mount -o rbind /run /mnt/run
chroot /mnt /bin/bash

# reverted all change done in the tutorial
# rootdelay=10 to /etc/kernel/cmdline
# formated again the efi
proxmox-boot-tool format /dev/nvme0n1p2 --force
proxmox-boot-tool init /dev/nvme0n1p2
proxmox-boot-tool refresh
proxmox-boot-tool clean
update-initramfs -u -k all

Is there a way to repair that ?
Is there a guide to cp all vm & config to an external storage from a chroot ?