====== grub shell ======
===== Grub Menue aufrufen =====
<code>
set prefix=(hd0,1)/boot/grub
set root=(hd0,2)

insmod linux
insmod normal
normal
</code>

===== Linux starten =====
<code>
set pager=1

ls
 -> (hd0,gpt1) (hd0,gpt2) ...

ls (hd0,gpt1)/

set root=(hd0,gpt1)

linux /boot/vmlinuz root=/dev/sda1
initrd /boot/initrd.img

boot
</code>

====== os-prober edit ======
<code>
vi /etc/default/grub 
...
GRUB_DISABLE_OS_PROBER=false
</code>

<code>
vi /etc/grub.d/30_os-prober
...
      for LINUX in ${LINUXPROBED} ; do
        LROOT="`echo ${LINUX} | cut -d ':' -f 1`"
        LBOOT="`echo ${LINUX} | cut -d ':' -f 2`"
        LLABEL="`echo ${LINUX} | cut -d ':' -f 3 | tr '^' ' '`"
        LKERNEL="`echo ${LINUX} | cut -d ':' -f 4`"
        LINITRD="`echo ${LINUX} | cut -d ':' -f 5 | tr '^' ' '`"
        LPARAMS="`echo ${LINUX} | cut -d ':' -f 6- | tr '^' ' '` consoleblank=180"
...
</code>