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Applicable Environment
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- Topic: Make the boot sequence 'quiet'
- SDP: 6.5.0
- Target: Any supported target
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Solution________________________________________________________________________
To quiet or silence the booting process quiet, you will need to
customize the boot image and get rid of diskboot, which you should get
rid of anyway as its made for generic booting and your boot sequence
will likely be made much faster removing it.
Step 1. Remove the 'Press Esc' message.
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You can start with getting rid of the booting message: "Press Esc for alternate OS..........."
This can be done by using the dinit utility to replace the loader message. If you look at the dinit utility:
http://www.qnx.com/developers/docs/6.5.0/index.jsp?topic=/com.qnx.doc.neutrino_utilities/d/dinit.html
There is the '-m' option, where you can put your own message, for nothing just put a space.
Step 2. Silencing the rest of the boot sequence.
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The rest will a bit more involved. You will need to determine
what drivers you are running on your target once it is booted up
properly. Running 'pidin mem' will show you what is running and what
shared libs they loaded. Running 'pidin args' will show you how those
drivers and processes were started, the exception being anything that
may have been mounted into a running process (i.e. io-pkt). With that
information you will need to start to create your own boot image.
http://www.qnx.com/developers/docs/6.5.0/index.jsp?topic=/com.qnx.doc.neutrino_building/building_nto.html
For each driver that you launch, you can re-direct the output to /dev/null if you'd like.
E.g. my_app 2>/dev/null
The above redirects the output from stderr to /dev/null, however
most of what you see on the screen is from diskboot anyway so it is not
likely you will need to re-direct anything.
This is a time consuming process and it will easily take a day or more to fine tune.
