Can you install Yellow Dog Linux on the Rasberry Pi?

The numbers are different for an Alpha AXP Linux box. I am a composer, and one of the biggest hurdles for me in switching to exclusively Free Software was my sheet music typesetting software. The IDE subsystem registers IDE controllers and not disks with the Linux kernel. A common sector …

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How to evaluate error messages with bzless

Absolute paths specify a location (file or directory) in relation to the root directory. A 100Mhz processor will receive 100,000,000 clock ticks every second. Background processes that attempt to read from (write to) the terminal are sent a SIGTTIN (SIGTTOU) signal by the terminal driver, which, unless caught …

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Getting a mail server up and running on Qimo 4 Kids

They will not begin with a slash. In general, failing to agree with the standards is considered a bug. Not all four entries in the partition table have to be used. None other than the system call handler!

Scan the results of parameter expansion

The list goes on. To address …

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Getting up and running with Lumina

These common interfaces mean that the kernel can treat often very different devices and their device drivers absolutely the same. In order to be accessed, a file must first be opened. It has the same rights and responsibilities as any kernel code; in other words, Linux kernel modules can crash …

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File formats and conventions

Because Linux has such a large number of contributors from across multiple decades of development, contacting each individual author and getting them to agree to a new license is virtually impossible, so that Linux remaining licensed under the GPLv2 in perpetuity is all but assured. They prefer the term open …

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Actionable tips for mastering babeltrace

federal government. A pipe (its two file data structures, its VFS inode and the shared data page) is created in one go whereas a FIFO already exists and is opened and closed by its users. Another disadvantage of Open Source is the support service. If the expiry time for an …

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Does mklost+found sometimes make you feel stupid?

If the process has not blocked the signal and is waiting but interruptible (in state Interruptible) then it is woken up by changing its state to Running and making sure that it is in the run queue. In addition to implementing the standard C library, glibc provides wrappers for system …

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Starting the ypbind daemon at boot time

Approaching open source contributions without a strategy can tarnish a company's reputation in the open source community and incur legal risks. If the program is a file beginning with #!, the remainder of the first line specifies an interpreter for the program. What happens if you load a module built for …

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A simple mistake with rwall could cause many problems

If you find a bug, report it! The format most common in Linux is called Executable and Linkable Format (ELF). But all things come to an end eventually. You would want that file access to be strictly coordinated.

How much do you know about the Linux rlogin command?

Each process …

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Configuration management under BioKnoppix

The same good practices and understanding of the underlying system inform and benefit all forms of programming. That way you can still change the GRUB 2 bootloader image without having to worry about the digitally signed shim.efi file. Because your server will be probably Linux-based as well, it will …

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Getting the best out of tr when using Ubuntu

When the writer wants to write to the pipe it uses the standard write library functions. Yet throughout many school systems, the software in use on computers is closed and locked, making educators partners in the censorship of the foundational information of this new age. While an AWS-like service isn't …

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Create your own video streaming server with DamnSmallLinux

Aliases are expanded when a command is read, not when it is executed. Commands run as a result of command substitu- tion ignore the keyboard-generated job control signals SIGTTIN, SIGTTOU, and SIGTSTP. People who are completely new to open source software often wonder how a group of random people can …

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Are you making these mistakes with cupsd

Most of the malware are propagated through the Internet. You might also wonder whether ext4 is still in active development at all, given the flurries of news coverage of alternate filesystems such as btrfs, xfs, and zfs. It is sad to see that people today actually have to use the …

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Redirecting output with G2Linx

Yes, the house is ruining the sacred area, but nobody informed the homeowner in question about this problem before the purchase, so the shame should be placed elsewhere. This is also in sharp contrast to Microsoft Windows, for which modification of the software is generally not permitted. Mounting other filesystems …

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Running Gnome on Pinguy OS

Linux protects against this by maintaining lists of adjustments to the semaphore arrays. There are three types of partition supported by fdisk, primary, extended and logical. The first filesystem mounted is located in the root of the namespace, /, and is called the root filesystem. It doesn't take long to realize …

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Who wants to know the mystery behind import

The new vm_area_struct structure is put into the list of vm_area_struct pointed at by the shmid_ds. Internally, the quality assurance department runs rigorous regression test suites on each new pass of the operating system, and reports any bugs. It then restores the state of the new process (again this is …

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Automating builds using PHP on Arch Linux

After moving the Linux I've noticed a dramatic improvement in the speed and performance of my work flow, with the exact same tools I used on Windows. What does this mean to you? Each individual semaphore operation may request that an adjustment be maintained. The Free Software Movement would be …

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Getting up and running with the Raspberry Pi

The world economy will not collapse if creators of software choose to share their work with the world. When adding a user to a system you will be asked for your root i.d. In all of the cases above, the synergy created between the pairs has only gone to …

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Succeed with zmore on Linux

This, in turn, allows for the use of the pathnames with which all Unix users are familiar-for example, /home/blackbeard/concorde.png. Figure 5.1 shows that each file data structure contains pointers to different file operation routine vectors; one for writing to the pipe, the other for reading from …

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Installing valgrind

How these modes are supported by the underlying hardware differs but generally there is a secure mechanism for getting from user mode into system mode and back again. Given that Linus was using several GNU tools (e.g., the GNU Compiler Collection, or GCC), the marriage of the GNU tools …

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Get rid of aplaymidi once and for all

It is as old as computers themselves. As the information age went on, though, corporations became progressively more obsessed with controlling the spread of knowledge. The boom in interest around the Internet of Things (IoT), the notion of a network of devices, big and small, that can "talk" to each …

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Unwrapping perl

This modest computer's official Raspbian OS comes loaded with tons of programming tools, connector pins, and other useful ports. We are not done with hardware vulnerabilities, and speculative-execution vulnerabilities in particular. Alternatively, the process may have specfied its own signal handler. But imagine that if you can delete this system …

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How to get more from logout

A server is a computer with an operating system that is configured to allow other computers to connect to it from across a network. This is one of those arguments that sounds good superficially but which is not borne out by the evidence. If you plan to incorporate such software …

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Can a distro make the difference?

Physical filesystems reside on block storage devices, such as CDs, floppy disks, compact flash cards, or hard drives. Today open source software has become critical for almost every organization. If you love the rolling Linux distributions (here are some fixed vs rolling release differences), then you don't need to look …

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Create your own video streaming server with BackTrack

The Linux kernel, supporting both preemptive multitasking and virtual memory, provides every process both a virtualized processor and a virtualized view of memory. This is true even if the device is a modem being used by the PPP daemon to connect a Linux system onto a network. Therefore Linux adds …

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How to evaluate error messages with route

But it starts at the top. For Linux, a vendor can create a device driver for a specific hardware device and expect that, within reason, it will operate across most distributions. When Corporations are happy with the used software they donate money to the communities in order to be able …

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Succeed with dirname on Linux

To do this the IDE subsystem uses the minor device number from the device special identifier, this contains information that allows it to direct the request to the correct partition of the correct disk. Both of these flags are used for demand loaded modules. Unix and Linux are similar in …

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Using more to view text files at the BeatrIX command line

There are several web sites that provide drivers and assistance for configuring WinModem based devices. Often, the users who identify the bugs can fix the problem because they have the source code, or they can provide detailed descriptions of their problems so that other developers can fix them. A good …

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Here's what no-one tells you about minfo

The UEFI boot manager boots the mini-bootloader, then, in turn, it boots the standard Linux bootloader image. The exact wording of a recipe as it is written by its author is protected under copyright law, but the information itself (i.e., the names of the ingredients, their quantities and the …

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My experience with Nova

By opening the code to widespread examination, more people take part in finding its bugs and security flaws, in testing for broad compatibility across platforms, and in providing new ideas. This means that when the next process that attempts to access this memory gets a page fault, the shared memory …

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Sick and tired of using paste the same way?

Why make it easier for them. However, in most cases it is closed source (i.e., the source code is kept secret), and there are often restrictions on the use of the executable version. If all of the semaphore operations would have succeeded and the current process does not need …

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Getting your Widget engine up and running on Linux

Perhaps the most confusing thing about installing Linux for new users is the large number of options that are available to choose from. The early popularity of distributions like Slackware and then Red Hat gave the "common PC user" of the 1990s access to the Linux operating system and, with …

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Never mess with e2fsck and here's the reason why

The job of cache coherency is done partially by the hardware and partially by the operating system. One side note is that the popularity of the macOS hardware and operating system as a platform for development that mainly targets Linux may be attributed to the BSD-like macOS operating system. There …

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Fall in love with join

Processes that are started at boot time usually run as root or nobody. As a Linux user today you have all the means of getting to know your system inside out, but it is no longer necessary to have that knowledge in order to make the system comply to your …

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Who wants to know the mystery behind esdcat

Whenever we refer to a file or directory we are using one of these paths. Popular distributions include Debian, Fedora, Mint, and Ubuntu, but there are many others. The CPU can access both the system space memory and the I/O space memory, whereas the controllers themselves can only access …

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How to get more from popd

All of the read/write heads are attached together, they all move across the surfaces of the platters together. A common sector size is 512 bytes and the sector size was set when the disk was formatted, usually when the disk is manufactured. There is yet one other weakness: if …

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Getting to grips with e2fsprogs on the terminal

Therefore, mastering Linux for configuring and maintaining servers is a must to have skill for any technological entrepreneur who operates end-to-end applications. The scalability and flexibility of Linux enable many of these massive deployments to actually work, while the significantly reduced cost barriers of Linux make them more financially feasible …

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