Grub Rescue

[kommgroup]

Greetings, all. I have two FreeNAS boxes, both were running FreeNAS-11.1-U4. I did an update via the GUI and one completed successfully and is happy but the other never came back. I thought perhaps it was a malfunctioning USB drive but that doesn't appear to be it. It seems no matter what I do to fix this, I end up in grub rescue with an unknown filesystem error. I tried:

• doing a manual update with install media (with and without formatting)
• doing a fresh install of U6
• doing a fresh install of U4
• doing a fresh install of 10 (corral)

I have used both cd/dvd and usb install media and i have tried to install to different usb sticks, usb-mounted ssd drives, usb-mounted spindle drives... doesn't matter. grub rescue every time. i can't boot from sata. there doesn't seem to be a way to tell the bios to do that. i can only boot from usb or the raid controller (which is full).

i can boot to a ubuntu live cd, so there's that...

is there a way for me to repair grub? i can't seem to do anything in grub rescue because the filesystem is unknown. i can't even list the directory contents.

hardware:
HP ML310 Gen8, 16GB RAM, B120i controller

thanks for any help you might be able to provide.

 

[pro lamer]

Is your controller on the compatible hardware list?

What are your results for ls and ls with params? (I can't find what helped me with linux but I had to start with sth like this ls ROOT@ or ls ROOT/tankname@... Guess more Google-foo around grub ls might be needed...

Ps. Have you searched our forums for "grub rescue"?

Sent from my mobile phone

 

[kommgroup]

i updated the BIOS of the server and voila, it's back up and running.