VirtualBox – No Bootable medium found. System halted.
Resolution of the error observed while running VirtualBox the first time, "No Bootable medium found. System halted".
Resolution of the error observed while running VirtualBox the first time, "No Bootable medium found. System halted".
systemd is the system and service manager under the Linux operating system. It is an init system for managing user processes. It also provides various daemons for device management, user…
The vmstat command prints the system virtual memory statistics for Linux and Unix systems. vmstat prints information about system processes, memory, swap, I/O blocks, interrupts and context switches and the…
Using the free command, the free and used memory in a Linux or Unix system can be found. The free command can be given from the command line as, free…
The ps command gives information about processes on a Linux or Unix system. Our programs run as processes in the system. Also, for each installed package, there might be one…
Execution time A process has an execution time associated with it. The execution time comprises of two parts, the user time and the system time. The user time is the…
If you have a program that communicates over the network interface, say, eth0 and you wish to start the program automatically after the system startup, you need to ensure that…
X - Window system is a network-transparent window system. X11 server is the display server that manages the output on the bit-mapped display hardware. An application (or client) does the…