When in the grub prompt, these two commands provide good situational awareness:
- run the 'set' command to see what the current boot and network variables are.
- run the 'ls' command to see what devices and partitions are available
Then something like 'ls (hd0,gpt1)/boot' can show files in that partition
When running manual boot operations in the grub menu on a Dell Wyse 3040, something along the lines of the following might be used:
grub> linux (hd0,gpt2)/vmliunz root=/dev/mmcblk0p2 ro grub> initrd (hd0,gpt2)/initrd.img grub> boot
At Grub not loading config file or booting into linux automatically shows the trick of starting the grub menu:
grub> configfile (hd0,gpt4)/boot/grub/grub.cfg
