diff options
Diffstat (limited to 'extras/scsi_id/scsi_id.8')
| -rw-r--r-- | extras/scsi_id/scsi_id.8 | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/extras/scsi_id/scsi_id.8 b/extras/scsi_id/scsi_id.8 index 591bb79366..68d4a1c041 100644 --- a/extras/scsi_id/scsi_id.8 +++ b/extras/scsi_id/scsi_id.8 @@ -53,9 +53,10 @@ identifier starts with the NAA value of 6): .SH OPTIONS .TP .BI subsystem -When called with only a single argument without a leading \-, runs in a hotplug -mode, and expects the environment variable DEVPATH to specify the -corresponding sysfs device. See section below on usage with \fBudev\fP. +Deprecated method: when called with only a single argument without a +leading \-, runs in a hotplug mode, and expects the environment variable +DEVPATH to specify the corresponding sysfs device. See section below on +usage with \fBudev\fP. .TP .BI \-b The default behaviour \- treat the device as black listed, and do nothing @@ -66,6 +67,8 @@ Instead of determining and creating a device node based on a sysfs dev entry as done for the \fB\-s\fP, send SG_IO commands to \fBdevice\fP, such as \fB/dev/sdc\fP. +This argument should also be used when invoked via udev to avoid problems +with creation of temporary files on not-yet writable directories. .TP .BI \-f "\| config\-file" Read configuration and black/white list entries from @@ -106,15 +109,15 @@ Display version number and exit. .RE .SH USAGE WITH UDEV + If \fBscsi_id\fP is invoked with one argument without a leading \-, it assumes it is called for a hotplug event, and looks for the sysfs device -in the DEVPATH environment variable. - -This mode is used when run via the \fBudev\fP PROGRAM key. Passing any -arguments or options as part of the PROGRAM rule breaks this assumption, -and the results will likely not be as expected. +in the DEVPATH environment variable. This mode is deprecated, but +available for backwards compatibility. -When in this mode, all errors and warnings are sent via syslog. +If the DEVPATH environment variable is set, scsi_id assumes it has been +invoked via udev (or some other hotplug program), and all errors or +warnings are sent using syslog. To determine the specific value needed in a RESULT key, use the \-s option, for example: @@ -131,7 +134,7 @@ of 312345: .sp .nf -BUS="scsi", PROGRAM="/sbin/scsi_id", RESULT="312345", NAME="disk%n" +BUS="scsi", PROGRAM="/sbin/scsi_id -d %N -s %p", RESULT="312345", NAME="disk%n" .fi .P |