Red Hat 6.5 - takes an hour to reboot
Apart from boot.log (which has no times in) and /var/log/messages, what can I look at to determine why this server is taking so long to reboot?
|
Code:
Mar 10 06:30:35 server1 kernel: Kernel logging (proc) stopped. |
It's not so much log level but you're waiting for the new logging to start.
|
Quote:
|
Quote:
|
Quote:
Its scheduled to reboot once a week at 6-30am. |
Do you have a similar system for practice?
Has this slow boot problem only appeared recently? |
is "bootchart" installed ?
http://www.bootchart.org/ use that to get a log and a SVG image you can look at in more newer OS's this is built in ( RHEL7) systemd-analyze |
Quote:
|
Quote:
BUT, I wont get authorisation to install this on a live server unfortunately. Is there any way to check whats going on without installing additional tools? |
Quote:
|
What are specs of this system and what is the usage environment?
One of the members of my LUG is an accomplished Linux sysadmin who has recently acquired (within the past year) some very brawny servers that run RHEL (I forget the manufacturer). It's been a while since he demonstrated them at a LUG meeting, but they have 64 GB RAM and serve about 150 users in a thin-client environment. They take 20 minutes to boot to login from power on. That is their normal. |
Quote:
|
Somebody needs to sit in front of it to see what takes it so long. It's pretty likely that there's an automated fsck going on (look in /etc/fstab to see). Larger servers take up to ~20 minutes to test RAM, engage and test RAIDs, but many servers need to fsck one filesystem or another at boot-time, and that could take quite a bit of time.
You really won't know until someone hooks a console up to it and reports back to you. |
You said you only have ssh access? Does the server have a BMC? iLo, Drac etc. Redirect serial out to the Virtual Serial Port linking the BMC and server. You can then ssh to the BMC and view everything as if you were sitting at a console. Also remove "rhgb quiet" from the kernel boot parameter if you haven't already. /etc/grub/grub.conf
Red Hat has some nice articles on the VSP thing. Step by step even for the Dell/HP side. |
All times are GMT -5. The time now is 10:42 PM. |