Running CHKFSYS qnx2

QNX USERS QNX2 and QNX4
1

I would like to run CHKFSYS on my QNX2 install. How do you insure there are no open files , Idle system?

2

I believe that QNX2 has a program

$ fopen

That will show you which files are open, and in what mode. I believe it is perfectly safe to run chkfsys if you only have file open for read.

3

Thanks maschoen, yes there is FOPEN and DOPEN. Can a clean boot disk be created that dosen’t open anything?

4

On the contrary, you have to go out of your way to boot the system and have it open something. By default the OS will look for /config/sysinitXXX files to execute. If one is not there, then it will be executed, but it doesn’t have to open anything else. If it is not there, then a CTRL-Z on a terminal should bring up a login. That would be either the main console or a serial tty.