1993 Chevy 6.5 turbo diesel Transmission problem

I have a 1993 Chevy Crew Cab with a 6.5td. This morning when I left for work the E-brake light came on when I hit 30mph and the tranny would
not shift out of 1st gear. I limped it home and tried turning the engine off then back on. Tried it again same thing happens. Are the two problems related? I verified that the E-brake was not set, the light does not come on until I get to at least 30mph. Any ideas are much appreciated.
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