Re: [Freedos-kernel] Can the Kernel start my program instead of command.com?
>>From the point of view of protecting this system from counterfeiting & > unauthorised access, is it possible to interrupt processing config.sys? I > had read about pressing F5 to bypass config.sys and autoexec.bat. Also that > this can be disabled in config.sys. modify kernel.sys by using sys config kernel.sys SKIPCONFIGSECONDS=-1 to disable F5/F8 completely. OTOH, removing command.com will also completely disable tinkering with the system. > Another thought I have - what would the behaviour of the kernel be if my > program (as the command processor) does terminate? Does it reboot, restart > the command processor, or just hang? most likely just hang. test yourself. Tom -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi ___ Freedos-kernel mailing list Freedos-kernel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-kernel
Re: [Freedos-kernel] Can the Kernel start my program instead of command.com?
Thanks! It looks like the shell directive does exactly what I want. It defines what the kernel loads as the command processor. I'm in a funny situation where I only have just over 6 months total experience with DOS, and yet I'm writing DOS software for machinery which is 200 miles away... Not ideal, but it is what it is. >From the point of view of protecting this system from counterfeiting & unauthorised access, is it possible to interrupt processing config.sys? I had read about pressing F5 to bypass config.sys and autoexec.bat. Also that this can be disabled in config.sys. That seemed like a chicken and egg situation to me - disabling processing of config.sys by executing config.sys ? What if F5 is pressed before config.sys is loaded? The system doesn't have a keyboard plugged in, but it's not impossible to plug one in if you're interested in poking around the system. However, if I completely removed command.com and all other commands then the kernel wouldn't be able to load anything. Another thought I have - what would the behaviour of the kernel be if my program (as the command processor) does terminate? Does it reboot, restart the command processor, or just hang? -- View this message in context: http://freedos.10956.n7.nabble.com/Can-the-Kernel-start-my-program-instead-of-command-com-tp25676p25679.html Sent from the FreeDOS - Kernel mailing list archive at Nabble.com. -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi ___ Freedos-kernel mailing list Freedos-kernel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-kernel
Re: [Freedos-kernel] Can the Kernel start my program instead of command.com?
On Fri, 09 Dec 2016 02:07:24 -0700, David Kay wrote: > Is it possible to get the kernel to load my program directly instead of > via autoexec.bat? Then my system would just be composed of the kernel > and my program? Have you tried to declare your program in CONFIG.SYS using the SHELL= directive ? Seems like an easy test that would provide you with the answer you look for. Renaming your program to COMMAND.COM is also a possible test, albeit perhaps less elegant. I wouldn't expect troubles, but as usual, testing it out is the only way to be sure. cheers, Mateusz -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi ___ Freedos-kernel mailing list Freedos-kernel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-kernel
