I was upgrading some ESXi hosts today, from 6.0 and to 6.7 Update, and afterward i found that they had en vShield File Introspection driver installed, so i tried to remove it from command line with:
esxcli software vib remove -n epsec-mux
But it did not work, I got a error back that looks a little like this.
Error in running rm /tardisks/epsec_mu.v00: Return code: 1 Output: rm: can’t remove ‘/tardisks/epsec_mu.v00’: Device or resource busy
The solution is to use the same command but with some extra options:
esxcli software vib remove -f -n epsec-mux --no-live-install