User Mode Linux

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u command in sysrq

-u switch for tunctl 2nd

ubd devices

     advantages of

     for filesystem access

     image backup for

     partitioning

ubd option

ubd0 file

ubda switch for COW files

ubdb file

     for copying data into instances

     for swap space

udb option

UID root

UIDs (user IDs)

     in filesystem extensions

     in ownership

umid (unique machine ID)

umid directory

     in small server setup

     process IDs in

     with jails

umid option

uml.ctl socket

uml_dir option

uml_mconsole

uml_mconsole command 2nd [See also Management Console (MConsole).]

     for bridging

     for copying data into instances

     for devices

     for host ports

     for hosts 2nd

     for network devices

     for TUN/TAP device connectivity

     for virtual serial lines

     reference

uml_moo

uml_moo tool

     for merging COW files

     reference

UML_NET options

uml_net utility 2nd 3rd

UML_RANDOM option

UML_REAL_TIME_CLOCK option

uml_switch

uml_switch process

     configuring

     example

     for isolated networks

     reference

UML_WATCHDOG option 2nd

uname command

Unique machine ID (umid)

Unique machine id (umid) directory

     in small server setup

     process IDs in

     with jails

UNIX sockets

     in MConsole

     with hostfs

     with humfs

     with uml_switch

-unix switch for uml_switch

Unplugging devices

Unprivileged contexts

untar command 2nd

User IDs (UIDs)

     in filesystem extensions

     in ownership

User mode vs. kernel mode

User notifications

Utilities reference

     humfsify