About: Magic SysRq key

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The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem. Its effect is similar to the computer's hardware reset button (or power switch) but with many more options and much more control. The magic SysRq key cannot work under certain conditions, such as a kernel panic or a hardware failure preventing the kernel from running properly.

Attributes	Values
rdf:type	drug
rdfs:label	Magic SysRq key (en)
rdfs:comment	The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem. Its effect is similar to the computer's hardware reset button (or power switch) but with many more options and much more control. The magic SysRq key cannot work under certain conditions, such as a kernel panic or a hardware failure preventing the kernel from running properly. (en)
sameAs	Magic SysRq key Magic SysRq key
dbp:wikiPageUsesTemplate	dbt:Citation_needed dbt:Cite_web dbt:Code dbt:Commonscat dbt:Math dbt:Mvar dbt:Reflist dbt:Section_link dbt:Short_description dbt:Tt dbt:Wikibooks dbt:Manual dbt:Key
Subject	Out-of-band management System administration Linux kernel features Mnemonics
gold:hypernym	Combination
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Magic_SysRq_key?oldid=1063593659&ns=0
Wikipage page ID	2449993 (xsd:integer)
page length (characters) of wiki page	17294 (xsd:nonNegativeInteger)
Wikipage revision ID	1063593659 (xsd:integer)
Link from a Wikipage to another Wikipage	Fn key Load (computing) Lock (computer science) Print Screen Process identifier Procfs Sun Microsystems X Window System AZERTY Alt key Booting Universal asynchronous receiver-transmitter Xen Out-of-band management System administration KVM switch Linux kernel features Mnemonics Direct Rendering Manager QWERTY Secure attention key Chromebook Linux kernel Terminal server Colemak Computer display standard Dvorak keyboard layout Nice (Unix) Open Firmware Out of memory SVGALib File system Fsck IBM IBM 3270 IBM Developer IBM Hardware Management Console IBM Power Systems Kernel.org Kernel panic Mnemonic S Sysctl System console System request File-system permissions Hang (computing) Init Text mode Escape sequence Mask (computing) Real-time computing Reset (computing) Reset button Signal (IPC) dbr:XLATE dbr:Wikt:compile
has abstract	The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem. Its effect is similar to the computer's hardware reset button (or power switch) but with many more options and much more control. This key combination provides access to powerful features for software development and disaster recovery. In this sense, it can be considered a form of escape sequence. Principal among the offered commands are means to forcibly unmount file systems, kill processes, recover keyboard state, and write unwritten data to disk. With respect to these tasks, this feature serves as a tool of last resort. The magic SysRq key cannot work under certain conditions, such as a kernel panic or a hardware failure preventing the kernel from running properly. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Magic_SysRq_key
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