Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

udisksctl(1)


NAME

   udisksctl - The udisks command line tool

SYNOPSIS

   udisksctl status

   udisksctl info {--object-path OBJECT | --block-device DEVICE}

   udisksctl mount {--object-path OBJECT | --block-device DEVICE}
             [--filesystem-type TYPE] [--options OPTIONS...]
             [--no-user-interaction]

   udisksctl unmount {--object-path OBJECT | --block-device DEVICE}
             [--force] [--no-user-interaction]

   udisksctl unlock {--object-path OBJECT | --block-device DEVICE}
             [--no-user-interaction]

   udisksctl lock {--object-path OBJECT | --block-device DEVICE}
             [--no-user-interaction]

   udisksctl loop-setup --file PATH [--read-only] [--offset OFFSET]
             [--size SIZE] [--no-user-interaction]

   udisksctl loop-delete {--object-path OBJECT | --block-device DEVICE}
             [--no-user-interaction]

   udisksctl power-off {--object-path OBJECT | --block-device DEVICE}
             [--no-user-interaction]

   udisksctl smart-simulate --file PATH {--object-path OBJECT |
             --block-device DEVICE} [--no-user-interaction]

   udisksctl monitor

   udisksctl dump

   udisksctl help

DESCRIPTION

   udisksctl is a command-line program used to interact with the
   udisksd(8) daemon process.

COMMANDS

   status
       Shows high-level information about disk drives and block devices.

   info
       Shows detailed information about OBJECT or DEVICE.

   mount
       Mounts a device. The device will be mounted in a subdirectory in
       the /media hierarchy - upon successful completion, the mount point
       will be printed to standard output.

       The device will be mounted with a safe set of default options. You
       can influence the options passed to the mount(8) command with
       --options. Note that only safe options are allowed - requests with
       inherently unsafe options such as suid or dev that would allow the
       caller to gain additional privileges, are rejected.

   unmount
       Unmounts a device. This only works if the device is mounted. The
       option --force can be used to request that the device is unmounted
       even if active references exists.

   unlock
       Unlocks an encrypted device. The passphrase will be requested from
       the controlling terminal and upon successful completion, the
       cleartext device will be printed to standard output.

   lock
       Locks a device. This only works if the device is a cleartext device
       backed by a cryptotext device.

   loop-setup
       Sets up a loop device backed by FILE.

   loop-delete
       Tears down a loop device.

   power-off
       Arranges for the drive to be safely removed and powered off. On the
       OS side this includes ensuring that no process is using the drive,
       then requesting that in-flight buffers and caches are committed to
       stable storage. The exact steps for powering off the drive depends
       on the drive itself and the interconnect used. For drives connected
       through USB, the effect is that the USB device will be deconfigured
       followed by disabling the upstream hub port it is connected to.

       Note that as some physical devices contain multiple drives (for
       example 4-in-1 flash card reader USB devices) powering off one
       drive may affect other drives. As such there are not a lot of
       guarantees associated with performing this action. Usually the
       effect is that the drive disappears as if it was unplugged.

   smart-simulate
       Sets SMART data from the libatasmart blob given by FILE - see
       /usr/share/doc/libatasmart-devel-VERSION/ for blobs shipped with
       libatasmart. This is a debugging feature used to check that
       applications act correctly when a disk is failing.

   monitor
       Monitors the daemon for events.

   dump
       Prints the current state of the daemon.

   help
       Prints help and exit.

COMMON OPTIONS

   The option --no-user-interaction can be used to request that no
   interaction (such as the user being presented with an authentication
   dialog) must occur when checking with polkit(8) whether the caller is
   authorized to perform the requested action.

AUDIENCE

   This program does not assume that the caller is the super user - it is
   intended to be used by unprivileged users and authorizations are
   checked by the udisks daemon using polkit(8). Additionally, this
   program is not intended to be used by scripts or other programs -
   options/commands may change in incompatible ways in the future even in
   maintenance releases. See the "API STABILITY" section of udisks(8) for
   more information.

BASH COMPLETION

   udisksctl ships with a bash completion script to complete commands,
   objects, block devices and some options.

AUTHOR

   Written by David Zeuthen <zeuthen@gmail.com> with a lot of help from
   many others.

BUGS

   Please send bug reports to either the distribution bug tracker or the
   upstream bug tracker at
   http://bugs.freedesktop.org/enter_bug.cgi?product=udisks.

SEE ALSO

   udisks(8), udisksd(8), umount.udisks2(8), polkit(8)



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner