The following procedure will remove MPI from the system manually.

1. Remove the Device Drivers
   cd /etc/conf/bin
   • If ISA or EISA Xi or Xe cards were installed:
     ./idinstall -d pcxx
./idinstall -d pcx1
   • If Microchannel Xi or Xe cards were installed:
     ./idinstall -d mcxx
./idinstall -d mcx1
   • If Xr cards were installed:
     ./idinstall -d pcxr
./idinstall -d pcr1
   • If EPC/X C/X or X/em were installed:
     ./idinstall -d epca [epc(b-h) may exist on some systems]
./idinstall -d epc1
   • If digiScreen was installed:
     ./idinstall -d dscr
     
2. Remove the parts of MPI
   
   cd /usr/bin
rm ./mpi ./dpa.Z ./dscreen ./ditty
cd /etc
rm ./dsinfo ./epcadl ./pcxrdl ./pcxxdl
rm ./digi/*
   • For SVR4
     
     cd /usr/include/sys
rm ./stdigi.h rm ./dgdscr.h
cd /usr/share/man
rm ./man1/ditty.1
rm ./man4/dsinfo.4
   • For SCO OpenServer
     
     rm /usr/include/sys/digi.h
rm /usr/spool/lp/model/dumb.dg
3. Relink the kernel
   
   cd /etc/conf/bin
./idbuild