...ntation/admin-guide/initrd.rst (or Documentation/initrd.txt before Linux 4.10) as well as pivot_root (2) and pivot_root (8) for information on the modern method of changing the …system memory, kernel memory and system ports NAME mem, kmem, port - system memory, kernel memory and system ports DESCRIPTION /dev/mem is a character device file that is an image …system memory, kernel memory and system ports NAME mem, kmem, port - system memory, kernel memory and system ports DESCRIPTION /dev/mem is a character device file that is an image …system memory, kernel memory and system ports NAME mem, kmem, port - system memory, kernel memory and system ports DESCRIPTION /dev/mem is a character device file that is an image …always full device NAME full - always full device CONFIGURATION If your system does not have /dev/full created already, it can be created with the following commands: mknod -m 666 …data sink NAME null, zero - data sink DESCRIPTION Data written to the /dev/null and /dev/zero special files is discarded. Reads from /dev/null always return end of file (i.e., read…data sink NAME null, zero - data sink DESCRIPTION Data written to the /dev/null and /dev/zero special files is discarded. Reads from /dev/null always return end of file (i.e., read…x86 CPU MSR access device NAME msr - x86 CPU MSR access device DESCRIPTION /dev/cpu/CPUNUM/msr provides an interface to read and write the model-specific registers (MSRs) of an x86…virtual console memory NAME vcs, vcsa - virtual console memory DESCRIPTION /dev/vcs0 is a character device with major number 7 and minor number 0, usually with mode 0644 and owners…virtual console memory NAME vcs, vcsa - virtual console memory DESCRIPTION /dev/vcs0 is a character device with major number 7 and minor number 0, usually with mode 0644 and owners…x86 CPUID access device NAME cpuid - x86 CPUID access device DESCRIPTION CPUID provides an interface for querying information about the x86 CPU. This device is accessed by lseek (2…HP Smart Array block driver NAME cciss - HP Smart Array block driver SYNOPSIS modprobe cciss [ cciss_allow_hpsa=1 ] DESCRIPTION Note : This obsolete driver was removed in Linux 4.1…pseudoterminal master and slave NAME ptmx, pts - pseudoterminal master and slave DESCRIPTION The file /dev/ptmx (the pseudoterminal multiplexor device) is a character file with maj…pseudoterminal master and slave NAME ptmx, pts - pseudoterminal master and slave DESCRIPTION The file /dev/ptmx (the pseudoterminal multiplexor device) is a character file with maj…ram disk device NAME ram - ram disk device DESCRIPTION The ram device is a block device to access the ram disk in raw mode. It is typically created by: mknod -m 660 /dev/ram b 1 1 …serial terminal lines NAME ttyS - serial terminal lines DESCRIPTION ttyS[0-3] are character devices for the serial terminal lines. They are typically created by: mknod -m 660 /dev/…controlling terminal NAME tty - controlling terminal DESCRIPTION The file /dev/tty is a character file with major number 5 and minor number 0, usually with mode 0666 and ownership …kernel random number source devices NAME random, urandom - kernel random number source devices SYNOPSIS #include <linux/random.h> int ioctl( fd , RND request , param ); DESCRIPTION…kernel random number source devices NAME random, urandom - kernel random number source devices SYNOPSIS #include <linux/random.h> int ioctl( fd , RND request , param ); DESCRIPTION…MFM/IDE hard disk devices NAME hd - MFM/IDE hard disk devices DESCRIPTION The hd* devices are block devices to access MFM/IDE hard disk drives in raw mode. The master drive on the …