07-30-2008
Quote:
Originally Posted by
itik
[...] The apar instructions is to reboot on the ibm site. Is there's a way to update apar w/o reboot? I think I heard something before that it's possible.[...]
As long as you don't want to use the changed feature that comes with such an APAR which requires a reboot you don't have to reboot. I am not aware of any os update that would force you to reboot immediately. However if you want to use the updated kernel you will have to reboot.
Mind also that if you don't reboot the patched kernel on disk is not the same as the kernel in memory. Hence some things won't work. E.g it might be impossible to do any io or vm tuning till you reboot and you might get strange/silly error messages.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
Quick question.
Does anyone know what is the compination of buttons that I have to press to stop the start up so I can bring the system in a single user mode?
I use HP Vis 9000
Thanks alot (1 Reply)
Discussion started by: guest100
1 Replies
2. Solaris
Hi Guru's
Can any want here could explain to me the different between soft reboot and hard reboot .
Best Regards
Seelan (3 Replies)
Discussion started by: seelan3
3 Replies
3. Shell Programming and Scripting
Hi
What is the best way to reboot a Linux computer?
i) Press the power switch
ii) type 'init 6' as any user, then enter the root password when prompted
iii) Pour metal filings in the top of the computer.
iv) su to root then type 'init 6' (6 Replies)
Discussion started by: tjay83
6 Replies
4. Solaris
I want to update my solaris 10 server which is currently on update 3 stage.
A new application require it to be on update 6.
What is the best way to make it update 6.
should i just install the patch or should i go for the liveupgrade??
thanks for you help in advance (3 Replies)
Discussion started by: uxravi
3 Replies
5. Emergency UNIX and Linux Support
Hi guys,
thanks for your help. I recently did a yum update on my rhel6.4 server. After this update, user logins take for ever and the reboot command does not work. When I do a reboot, the server hangs. Nothing happens.
Any help with this will be appreciated.
Thank you (3 Replies)
Discussion started by: cjashu
3 Replies
6. Programming
Right I have a MYSQL database with table1 with 3 columns, colA, colB and colC. I want to combine the data in the 3 columns into a 4th column names col_comb. Here's the SQL command that works:
UPDATE table1 SET `col_comb` = CONCAT( `colA` , ' - ', `colB` , ', ', `colC` );
So now I want this... (5 Replies)
Discussion started by: barrydocks
5 Replies
7. Red Hat
Hi
i want to update the BASH because of the "shell shock" vulnerability.
my RedHat 5 is clean install with the default mirror site.
when im running the command: yum update bash
im getting a message saying there is no update. you can see in the attach picture...
what am i doing wrong? is... (4 Replies)
Discussion started by: guy3145
4 Replies
8. Red Hat
Hi
Is it a way ? When Linux kernel updated that don't want reboot it means without reboot the new kernel performances
Thanks (7 Replies)
Discussion started by: mnnn
7 Replies
9. Solaris
Hi friends,
We have a Solaris machine running 10 update 3
-bash-3.2# cat /etc/release
Solaris 10 11/06 s10s_u3wos_10 SPARC
Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
... (6 Replies)
Discussion started by: prvnrk
6 Replies
reboot(8) System Manager's Manual reboot(8)
NAME
reboot - Restarts the machine
SYNOPSIS
/usr/sbin/reboot [-dlnq]
DESCRIPTION
When the system is running and multiple users are logged in, use the shutdown -r command to perform a reboot operation. If no users are
logged in, use the reboot command.
The reboot command normally stops all running processes, syncs the disks, logs the reboot, and writes a shutdown entry in the login
accounting file, /var/adm/wtmp.
The reboot command uses the sync call to synchronize the disks, and to perform other shutdown activities such as resynchronizing the hard-
ware time-of-day clock. After these activities, the system reboots. By default, the system starts and the file systems are automatically
checked. If the start-up activities are successful, the system comes up in the default run-level.
You must have root privileges to use this command. Using the -n flag can result in file system damage.
FLAGS
Generates a crash dump of the system before halting it. Can be used with any of the other flags. Does not log the reboot using syslog
Does not sync the disks or log the reboot using syslog Performs a quick reboot without first shutting down running processes; does not log
the reboot using syslog
EXAMPLES
To enable the default reboot action, enter: reboot This command causes the system to stop all running processes, sync the disks, log the
shutdown, and perform other routine shutdown and reboot activities. To shut down the system without logging the reboot, enter: reboot -l
This command shuts down the system and performs all shutdown and reboot activities, except logging the shutdown. To reboot the system
abruptly, enter: reboot -q This command reboots the system abruptly without shutting down running processes.
FILES
Specifies the command path Specifies the login accounting file Specifies the path of the syslog daemon
RELATED INFORMATION
Commands: fsck(8), halt(8), init(8), savecore(8) shutdown(8), syslogd(8)
Functions: reboot(2), sync(2), syslog(3) delim off
reboot(8)