"Error: attempt to read or write outside of hd0" After Update

[Astronomer]

I bumped my server (HP ML350 G5) to 20Gb ECC RAM from 16 Gb this morning and it rebooted just fine and all was well. I saw that there were some updates, so I applied them, and could not access the server from the web interface afterward. I went down to the server, turned on a screen, and saw this Grub error: "Error attempt to read or write outside of hd0".

The boot drive is a 16Gb Sandisk USB stick.

Any thoughts on what to do? This is a new one for me, and a search turned up precious little.

 

[Astronomer]

EDIT: Nope. I can't get to the boot menu.

Will see if the thread fixes the issue:
Workaround/Semi-Fix for Mountroot Issues with 9.3!

 

[joeschmuck]

I'm not familiar with this error however it should be easy enough to just remove the USB Flash drive, take it to another computer and reformat it (do a FULL reformat, not quick reformat to ensure it's not physically damaged). Now reinstall FreeNAS to your USB device. Or just install FreeNAS to a new/different USB flash drive.

 

[Astronomer]

I have a spare USB stick that I'm installing FreeNAS on now. Idiotically, I don't have a recent backup config. Having never done it before, is it hard to remount my pools so I can access my data?

Oddly, I can boot the original USB stick on my laptop, but I can't get it to do so on the server. Very strange, that. The replacement stick boots just fine on the server.

 

[Astronomer]

Success! I downloaded an ISO of the latest build. I booted from that and plugged in the original USB drive. I booted and ran the installer, and chose the option to upgrade the existing installation and keep the original configuration. I booted from that and all works well. I just made a backup of the configuration, and I'll pick up a couple of new 16Gb drives tomorrow.

 

[joeschmuck]

Glad yo figured it out. Yes, everyone should make a backup of the config file.