Questions tagged [qnx]

QNX is a proprietary, real-time UNIX-like operating system used in embedded systems.

7 questions with no upvoted or accepted answers
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perform a read only if file is closed

I am facing an issue where I have to write a shell script to read a file only if it is not used or under write by any other program. I cannot use lsof as this script is going to run on the embedded ...
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3k views

why is df update slow?

When I remove large files, then use df to check the disk usage, often it takes a noticeable amount of time to update the disk usage percentage appropriately. This affects several data management ...
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0answers
1k views

New harddrive does not show up in /dev

I am trying to add a second (unformatted) IDE hard drive to a QNX 6.4.1 VM (hosted through vmware's vSphere). Unfortunately, there is no entry for the drive in /dev (I think this is called an ...
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0answers
7 views

QNX throws an error as login: -sh: cant access shared libraries

When I am trying to login with non root user the QNX throws an error as login: -sh: cant access shared libraries. Why is it so? I have already checked the permissions they are as below: /lib (...
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0answers
9 views

QNX 4 Scheduling Algorithms

Can we have one of the experts explain how the QNX 4 adaptive scheduling algorithm works? I am looking for a particular case where we have multiple tasks of the same priority in READY state waiting ...
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0answers
350 views

Ubuntu mount image file from VM virtualbox

I have Ubuntu 17.10 on USB Flash drive and in VM VirtualBox. I have a QNX4 image file on an external hard drive that I can mount on the computer running from the Ubuntu 17.10 USB flash drive. I ...
0
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2answers
120 views

Grub Recovery at Boot

So I'm not exactly sure what happened but when I went to start my computer today, it failed to boot and the only thing on the screen is a command line with "Grub recovery". I tried to repair what ...