The dreaded root mount error - no fix found

[tamtap]

so, i have a watchguard box. pulled the drive from it and plugged into a desktop. booted from pfsense cd and installed pfsense onto the hard drive.

put hard drive back into the watchguard box and now when it boots I get the root mount error and cant find a fix. All the google links talk about usb which isn't relevant.

Help!!!!

[tamtap]

just in case anyone else stumbles across this here is the fix.

type ? and press enter, this will give the real drive partition number.

then type

ufs:/dev/adxs1a where x is the number from above.

boot.

shell into pfsense and edit \etc\fstab and make it match what you entered.