Will the executable of a small, extremely simple program, such as the one shown below, that is compiled on one flavor of Linux run on a different flavor? Or would it need to be recompiled?
Pasted below this question is a sample of a /etc/hosts file from a Linux (CentOS) and a Windows machine. The Linux file has two tabbed entries after the IP address (that is localhost.localdomain localhost) and Windows has only one. If I want to edit the hosts file in Windows to have the machine name (etest) instead of localhost, I simply replace the word localhost with the machine name I want. The machine need not be part of a domain.
When I dump a large MySQL database (its dump weighs around 10GB)
– it appears on the disk almost immediately, but then, later, when the kernel
decides to flush it to the disk, the server almost stalls and other IO requests
take a lot more time to complete even though mysqldump is run with ionice -c3,
so the use of ionice has no real effect.
So when i try to use the Xorg command as a normal user, this is the error that it gives me :
Recently saw a question that sparked this thought. Couldn’t really find an answer here or via the Google machine. Basically, I’m interested in knowing how the kernel I/O architecture is layered. For example, does kjournald dispatch to pdflush or the other way around? My assumption is that pdflush (being more generic to mass storage I/O) would sit at a lower level and trigger the SCSI/ATA/whatever commands necessary to actually perform the writes, and kjournald handles higher level filesystem data structures before writing. I could see it the other way around as well, though, with kjournald directly interfacing with the filesystem data structures and pdflush waking up every now and then to write dirty pagecache pages to the device through kjournald. It’s also possible that the two don’t interact at all for some other reason.
I have done some research about this on Google, but the results were cloudy. Why is the / sign used to denote the root directory. Are there any solid reasons behind it?
Say I plug in several USB drives which don’t get automatically mounted. How can I find out which device file belongs to which physical device, so I can mount it for example?
I am looking for a way to mount a ZIP archive as a filesystem so that I can transparently access files within the archive. I only need read access — the ZIP will not be modified. RAM consumption is important since this is for a (resource constrained) embedded system. What are the available options?
I want to be able to start zsh with a custom rc file similar to the command: bash --rc-file /path/to/file
I have device file that appears in /dev when a specific board is plugged in. The read and write operations to it work just fine, but in order to open the device file the program needs to be executed with root priveledges. Is there any way I can all a non-root user to open this one specific device file without having to use sudo?