Linux Manuals session 8

lvm2-activation-generator – generator for systemd units to activate LVM volumes on boot Synopsis /lib/systemd/system-generators/lvm2-activation-generator Description The lvm2-activation-generator is called by systemd(1) on boot to generate systemd units at runtime to activate LVM Logical Volumes (LVs) when global/event_activation=0 is set in lvm.conf(5). These units use vgchange -ay to activate LVs. If event_activation=1, the lvm2-activation-generator exits immediately…

lvm — LVM2 tools Synopsis lvm [command|file] Description The Logical Volume Manager (LVM) provides tools to create virtual block devices from physical devices. Virtual devices may be easier to manage than physical devices, and can have capabilities beyond what the physical devices provide themselves. A Volume Group (VG) is a collection of one or more…

lvm lvpoll – Continue already initiated poll operation on a logical volume Synopsis lvm lvpoll option_args position_args     [ option_args ] Description lvm lvpoll is an internal command used by lvmpolld(8) to monitor and complete lvconvert(8) and pvmove(8) operations. lvpoll itself does not initiate these operations and should not normally need to be run directly. Usage lvm lvpoll…

lvm fullreport – Display full report Synopsis lvm fullreport     [ option_args ]     [ position_args ] Description lvm fullreport produces formatted output about PVs, PV segments, VGs, LVs and LV segments. The information is all gathered together for each VG (under a per-VG lock) so it is consistent. Information gathered from separate calls to vgs, pvs, and lvs can be…

lvmconfig – Display and manipulate configuration information Synopsis lvmconfig     [ option_args ]     [ position_args ] Description lvmconfig, lvm config, lvm dumpconfig (for compatibility reasons, to be phased out) produce formatted output from the LVM configuration tree. The sources of the configuration data include lvm.conf(5) and command line settings from –config. Usage lvmconfig [ -f|–file String ] [ -l|–list ]…

lvmconfig – Display and manipulate configuration information Synopsis lvmconfig     [ option_args ]     [ position_args ] Description lvmconfig, lvm config, lvm dumpconfig (for compatibility reasons, to be phased out) produce formatted output from the LVM configuration tree. The sources of the configuration data include lvm.conf(5) and command line settings from –config. Usage lvmconfig [ -f|–file String ] [ -l|–list ]…

lvextend – Add space to a logical volume Synopsis lvextend option_args position_args     [ option_args ]     [ position_args ]     –alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit  -A|–autobackup y|n     –commandprofile String     –config String  -d|–debug     –driverloaded y|n  -l|–extents [+]Number[PERCENT]  -f|–force  -h|–help     –lockopt String     –longhelp  -m|–mirrors Number  -n|–nofsck     –nolocking     –nosync     –noudevsync     –poolmetadatasize [+]Size[m|UNIT]     –profile String  -q|–quiet     –reportformat basic|json  -r|–resizefs  -L|–size [+]Size[m|UNIT]  -i|–stripes Number  -I|–stripesize Size[k|UNIT]  -t|–test     –type linear|striped|snapshot|mirror|raid|thin|cache|vdo|thin-pool|cache-pool|vdo-pool     –usepolicies  -v|–verbose     –version  -y|–yes Description lvextend extends the size of an LV. This requires allocating…

lvdisplay – Display information about a logical volume Synopsis lvdisplay     [ option_args ]     [ position_args ] Description lvdisplay shows the attributes of LVs, like size, read/write status, snapshot information, etc. lvs(8) is a preferred alternative that shows the same information and more, using a more compact and configurable output format. Usage lvdisplay [ -a|–all ] [ -c|–colon ] […

lvcreate – Create a logical volume Synopsis lvcreate option_args position_args     [ option_args ]     [ position_args ]  -a|–activate y|n|ay     –addtag Tag     –alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit  -A|–autobackup y|n  -H|–cache     –cachemetadataformat auto|1|2     –cachemode writethrough|writeback|passthrough     –cachepolicy String     –cachepool LV     –cachesettings String  -c|–chunksize Size[k|UNIT]     –commandprofile String     –compression y|n     –config String  -C|–contiguous y|n  -d|–debug     –deduplication y|n     –discards passdown|nopassdown|ignore     –driverloaded y|n     –errorwhenfull y|n  -l|–extents Number[PERCENT]  -h|–help  -K|–ignoreactivationskip     –ignoremonitoring     –lockopt String     –longhelp  -j|–major Number     –[raid]maxrecoveryrate Size[k|UNIT]     –metadataprofile String     –minor Number     –[raid]minrecoveryrate Size[k|UNIT]     –mirrorlog core|disk  -m|–mirrors Number     –monitor y|n  -n|–name String     –nolocking     –nosync     –noudevsync  -p|–permission rw|r  -M|–persistent y|n     –poolmetadatasize Size[m|UNIT]     –poolmetadataspare y|n     –profile String…

lvconvert – Change logical volume layout Synopsis lvconvert option_args position_args     [ option_args ]     [ position_args ]     –alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit  -b|–background  -H|–cache     –cachemetadataformat auto|1|2     –cachemode writethrough|writeback|passthrough     –cachepolicy String     –cachepool LV     –cachesettings String     –cachevol LV  -c|–chunksize Size[k|UNIT]     –commandprofile String     –compression y|n     –config String  -d|–debug     –deduplication y|n     –discards passdown|nopassdown|ignore     –driverloaded y|n  -f|–force  -h|–help  -i|–interval Number     –lockopt String     –longhelp     –merge     –mergemirrors     –mergesnapshot     –mergethin     –metadataprofile String     –mirrorlog core|disk  -m|–mirrors [+|–]Number  -n|–name String     –nolocking     –noudevsync     –originname LV     –poolmetadata LV     –poolmetadatasize Size[m|UNIT]     –poolmetadataspare y|n     –profile String  -q|–quiet  -r|–readahead auto|none|Number  -R|–regionsize Size[m|UNIT]     –repair     –replace PV  -s|–snapshot…

lvchange – Change the attributes of logical volume(s) Synopsis lvchange option_args position_args     [ option_args ]  -a|–activate y|n|ay     –activationmode partial|degraded|complete     –addtag Tag     –alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit  -A|–autobackup y|n     –cachemode writethrough|writeback|passthrough     –cachepolicy String     –cachesettings String     –commandprofile String     –compression y|n     –config String  -C|–contiguous y|n  -d|–debug     –deduplication y|n     –deltag Tag     –detachprofile     –discards passdown|nopassdown|ignore     –driverloaded y|n     –errorwhenfull y|n  -f|–force  -h|–help  -K|–ignoreactivationskip     –ignorelockingfailure     –ignoremonitoring     –lockopt String     –longhelp  -j|–major Number     –[raid]maxrecoveryrate Size[k|UNIT]     –metadataprofile String     –minor Number     –[raid]minrecoveryrate Size[k|UNIT]     –monitor y|n     –nolocking     –noudevsync  -P|–partial  -p|–permission rw|r  -M|–persistent y|n     –poll y|n     –profile String  -q|–quiet  -r|–readahead auto|none|Number     –readonly…

luksformat – Create and format an encrypted LUKS device Synopsis luksformat [-t fstype] device [ mkfs options ] Description luksformat is a wrapper around cryptsetup and mkfs which provides an easy interface for creating an encrypted device that follows the LUKS standard and for putting a file system onto the encrypted device. The default file…

lttng_sessiond_selinux – Security Enhanced Linux Policy for the lttng_sessiond processes Description Security-Enhanced Linux secures the lttng_sessiond processes via flexible mandatory access control. The lttng_sessiond processes execute with the lttng_sessiond_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

lttng-sessiond — LTTng 2.x central tracing registry session daemon. Synopsis lttng-sessiond [OPTIONS] Description The LTTng project aims at providing highly efficient tracing tools for Linux. It’s tracers help tracking down performance issues and debugging problems involving multiple concurrent processes and threads. Tracing across multiple systems is also possible. The session daemon, acting as a tracing…

lttng-relayd — LTTng remote trace collection daemon Synopsis lttng-relayd [OPTIONS] Description The LTTng project aims at providing highly efficient tracing tools for Linux. It’s tracers help tracking down performance issues and debugging problems involving multiple concurrent processes and threads. Tracing across multiple systems is also possible. The relay daemon listens by default on all network…

lsusb – list USB devices Synopsis lsusb [ options ] Description lsusb is a utility for displaying information about USB buses in the system and the devices connected to them. It uses udev’s hardware database to associate a full human-readable name to the vendor ID and the product ID. Options -v, –verbose Tells lsusb to…

lsscsi – list SCSI devices (or hosts) and their attributes Synopsis lsscsi [–classic] [–device] [–generic] [–help] [–hosts] [–kname] [–list] [–lunhex] [–long] [–protection] [–protmode] [–scsi_id] [–size] [–sysfsroot=PATH] [–transport] [–unit] [–verbose] [–version] [–wwn] [H:C:T:L] Description Uses information in sysfs (Linux kernel series 2.6 and later) to list SCSI devices (or hosts) currently attached to the system. Options…

pccardctl – PCMCIA card control utility lspcmcia – display extended PCMCIA debugging information Synopsis pccardctl [-V] [-v …] command [socket] lspcmcia [-V] [-v …] [socket] Description pccardctl is used to monitor and control the state of PCMCIA sockets. If a socket number is specified, the command will be applied to just one socket; otherwise, all…

lspci – list all PCI devices Synopsis lspci [options] Description lspci is a utility for displaying information about PCI buses in the system and devices connected to them. By default, it shows a brief list of devices. Use the options described below to request either a more verbose output or output intended for parsing by…

lsof – list open files Synopsis lsof [ -?abChlnNOPRtUvVX ] [ -A A ] [ -c c ] [ +c c ] [ +|-d d ] [ +|-D D ] [ +|-e s ] [ +|-E ] [ +|-f [cfgGn] ] [ -F [f] ] [ -g [s] ] [ -i [i] ] [ -k…