Unusual Unix environment rejects standard instructions
Unusual Unix environment rejects standard instructions
I purchased a VIPER-400-M64-F32 at an auction. It's a fast microcontroller based on ARM, intended for programming. The device came with RedBoot OS, but connecting via serial doesn't work as expected. It appears to be a Unix-based system, yet most standard commands fail. I searched for QNX Neutrino but found no useful guidance. So far, only basic commands like cd, exit, export, shutdown, reset, sh, pwd function. Commands that don’t work include ls, login, mount, mnt, help, ?, basename, echo, env, sudo, id, mkdir, tty, bash, etc. I tried resetting the path variable with export, but it still doesn’t resolve. When the device restarts, the path reverts and export displays PATH=/proc/boot:/bin:./:/ SYSNAME=nto. Shutting down the device shows confusing output. All these names appear in the terminal but don’t seem to operate. I’d really appreciate any suggestions on getting this working or troubleshooting further. This hardware could be interesting for certain projects, but I’m currently unable to use it. If you have any commands or tests you’d like me to run, I’m open to helping!
QNX was created for specialized embedded systems such as those in cars. Long ago, they developed a real-time operating system intended for desktop environments, but it never really took off. It runs on Unix, though with some limitations—you might need to revert to older Unix commands similar to those from SGI. The design was meant to be adaptable, so the hardware could have had its core components removed.
Explore the documentation at https://www.qnx.com/developers/docs/6.3....about.html for more details.
It was genuinely useful. I discovered a command called fesh that lets me execute certain commands that were previously inaccessible.