Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 322 — #348

. Device is already initialized and will be skipped.

* Hotplug event will be created for the device.

W Device is not on the whitelist and will be skipped.

B Device is on the blacklist and will be skipped.

14.8 Error Analysis

14.8.1 Log Files

Unless otherwise speciﬁed, hotplug only sends a few important mes-

sages to syslog. To obtain more information, set HOTPLUG_DEBUG=yes.

If you set this variable to the value max, every shell command is logged

for all hotplug scripts. This means that /var/log/messages in which

syslog stores all the messages will be much larger. As syslog is not

launched during the boot process until after hotplug and coldplug,

it is possible, however, for the ﬁrst messages not to be logged. If these

messages are important to you, specify a different log ﬁle via the vari-

able HOTPLUG_SYSLOG. Information about this topic is contained in

/etc/sysconfig/hotplug.

14.8.2 Boot Problems

If a computer hangs during the boot process, disable hotplug or

coldplug by entering NOHOTPLUG=yes or NOCOLDPLUG=yes, respec-

tively, at the boot prompt. When the system is up and running, reenable

hotplug by entering the command rchotplug start.

To ﬁnd out whether a particular module loaded by hotplug is responsi-

ble for the problem, enter HOTPLUG_TRACE=<N> at the boot prompt. The

names of all the modules are then output one after another on the screen

until after N seconds they are actually loaded. You cannot intervene while

this is going on.

14.8.3 The Event Recorder

The script /sbin/hotplugeventrecorder is called for each event by

/sbin/hotplug and sbin/hotplug-stopped. If a directory /events

exists, all hotplug events are stored as individual ﬁles in this directory.

322 14.8. Error Analysis