How to check Server reboot reason

9 More Discussions You Might Find Interesting

1. Red Hat

Server reboot

Hi, The server got rebooted and below messages can be seen in /var/log/messages Sep 7 10:49:12 minersville kernel: Call Trace: <IRQ> <ffffffff80167420>{__alloc_pages+796} Sep 7 10:49:12 minersville kernel: <ffffffff80182814>{kmem_getpages+106} <ffffffff80183c16>{fallback_alloc+304}...

2. Solaris

How to check last unexpected reboot time Solaris 10?

Dear all can you give me command to show me last unexpected reboot time the date, month, and the year on solaris 10 i've tried uptime who-b last reboot but nothing give me the year last reboot only the date , month and time

3. Solaris

Validate mountpoints on solaris server after server reboot

Hi, anyone please let us know how to write shell script to find the missing mountpoints after server reboot. i want to take the mountpount information before server reboot, and validate the mountpoints after server reboot if any missing.please let us know the shell script from begining to end as...

4. Shell Programming and Scripting

Help to check uptime post 30 min or so after every reboot

Hi, Please help me to cross verify the post reboot time. I want to execute some script after every reboot, which will happen only post 20-30 mins of reboot. If uptime is >24hrs, script should not execute. I tried with below command, but seems no luck. >> uptime | sed 's/^.*up//' | awk -F,...

5. Red Hat

Server usually restart not reason

Hi everyone, - I have CentOs server 5.4 , I usually remote by ssh. - My problem is server usually restart but I don't reason. I check log in file /var/log/messages: I don't see "signal 15" which kernel have to receive before restart. Everyone can see in attach. - I try to restart with command...

6. AIX

How to check who/which id perform a system reboot?

Hi Guys, I would like to know is there a way to find out who or which id performed the system reboot?Uptime only shows the last date the system was reboot but no userid or ip add.Need to investigate something due to some reboot issues. Thanks Giri

7. UNIX for Advanced & Expert Users

server reboot

hi all, :) for a reboot of sun box for patch installation i would like to know where do the reboot logs apart from /var/adm/messages and patch run messages would be available, i would like to know the sequence of messages logged in the file like requesting the users to log out sending a...

8. Shell Programming and Scripting

Server Reboot Alert

I want to get an email alert from a cronjob when a server got rebooted unexpectedly. Please help. Thanks! :confused:

9. UNIX for Advanced & Expert Users

mount: failed, reason given by server: Permission denied

Hi , I have a filesystem on AIX 4.3.3 which i need to share with other clients who use Windows NT and Redhat linux 7.3. I use samba to share this with Windows NT Clients. Now i was to share this with Linux clients. When i try to nfs mount this on Linux i get "mount: failed, reason given by...

LEARN ABOUT OSF1

reboot

reboot(2)							System Calls Manual							 reboot(2)

NAME

       reboot - Reboots system or halts processor

SYNOPSIS

       #include <sys/reboot.h>
       void reboot(	 int howto );

PARAMETERS

       Specifies a mask of options.

DESCRIPTION

       The reboot() function restarts the system.  The startup is automatic and brings up /vmunix in the normal, nonmaintenance mode.  The calling
       process must have superuser privilege to run this function successfully.  However, a reboot is invoked automatically in the event of  unre-
       coverable system failures.

       The  following options, defined in the sys/reboot.h include file are passed to the new kernel or the new bootstrap and init programs.  They
       are supplied as values to the howto parameter.  The default, causing the system to reboot in its usual fashion.	Dump kernel memory  before
       rebooting; see the savecore command for more information.  The processor is simply halted; no reboot takes place.  The disks are not sync'd
       before the processor is halted or rebooted.  Normally, the disks are sync'd (see the sync() command) before  the  processor  is	halted	or
       rebooted.  Because the disks are not sync'd with the RB_NOSYNC option, loss of data may result from using it.

       When  no options are given (that is, RB_AUTOBOOT is used), the system is rebooted from file vmunix in the root file system of unit 0 (zero)
       of a disk chosen in a processor-specific way.  (see the fsck command).

RETURN VALUES

       If successful, this call does not return.  Otherwise, a -1 is returned and errno is set to indicate the error.

ERRORS

       If the reboot() function fails, errno may be set to the following value: The calling process does not have appropriate privilege.

RELATED INFORMATION

       Commands: crashdc(8),

       halt(8), init(8), reboot(8), savecore(8) delim off

																	 reboot(2)

SuSE