Bash history tips and tricks | tail -f findings.out - 0 views
GRUB tips and tricks - 0 views
GRUB tips and tricks - 0 views
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First, what exactly is GRUB? GRUB is a boot loader, which means it passes control of the boot process from the Power-On Self Test (POST) to the kernel of your GNU/Linux distribution. GRUB works in a modular, layered fashion so that any unneeded modules are not loaded. Not only does this reduce execution time, but it saves valuable resources when running from removable media. GRUB optionally loads its configuration file at run/boot time, so you don’t have to type in commands manually each time.
What is /dev/shm and its practical usage - 0 views
How to: Compile Linux kernel 2.6 - 0 views
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Configuring GRUB 2: Tweaking the boot procedure in Ubuntu Server 9.10 - 0 views
How the Linux kernel works | TuxRadar Linux - 0 views
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The kernel makes its services available to the application programs that run on it through a large collection of entry points, known technically as system calls.
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From a programmer's viewpoint, these look just like ordinary function calls, although in reality a system call involves a distinct switch in the operating mode of the processor from user space to kernel space. Together, the repertoire of system calls provides a 'Linux virtual machine', which can be thought of as an abstraction of the underlying hardware.
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An even less visible function of the kernel, even to programmers, is memory management. Each process runs under the illusion that it has an address space (a valid range of memory addresses) to call its own.
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