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Diffstat (limited to 'extras/path_id/path_id.8')
| -rw-r--r-- | extras/path_id/path_id.8 | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/extras/path_id/path_id.8 b/extras/path_id/path_id.8 index e55914de31..9dc5965979 100644 --- a/extras/path_id/path_id.8 +++ b/extras/path_id/path_id.8 @@ -1,25 +1,14 @@ .TH PATH_ID 8 "April 2007" "" "Linux Administrator's Manual" .SH NAME -path_id \- udev callout to provide the shortest possible unique hardware path -to a device for the Linux Persistent Device Naming scheme +path_id \- udev callout to create a device path based unique name +for a device to implement the Linux Persistent Device Naming scheme .SH SYNOPSIS -DEVPATH=<devpath>; path_id - path_id <devpath> .SH "DESCRIPTION" .B path_id -is normally called from a udev rule, to provide udev a unique hardware path for -a device. Udev can use this information to create symlinks in /dev/ to the real -device node. -.SH EXAMPLES -For all block devices on a system: - -.nf -for i in `find /sys/class/block` -do - DEVPATH="`echo $i | sed -e 's@^/sys\|/dev@@g'`"; path_id -done -.fi +is normally called from a udev rule, to create a unique name, based on +the device properties along the chain of parent devices. Udev uses this +information to create a persistent symlink to the real device node. .SH SEE ALSO .BR udev (7) .SH AUTHORS |