Small fixes to the ubuntu packer build and remove snap script

Ubuntu-22/ubuntu-22.pkr.hcl

@@ -21,10 +21,7 @@ source "proxmox-iso" "ubuntu-22" {
     # Go to the end of the boot command
     "<down><down><down><down><left> <wait>",
 
-    # Add kernel command-line and start install
-    "linux ",
-    "/casper/vmlinuz ",
-    "--- ",
+    # Add kernel command-line to start autoinstall
     "autoinstall ",
     "ds=\"nocloud-net;seedfrom=http://{{ .HTTPIP }}:{{ .HTTPPort }}/ubuntu-22/\"",
     "<leftCtrlOn>x<leftCtrlOff><wait>"

scripts/remove-snap.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-apt purge -y snapd
+sudo apt purge -y snapd
 
-rm -rf /var/lib/snap
-rm -rf /root/snap
+sudo rm -rf /var/lib/snap
+sudo rm -rf /root/snap