Sponsored Content
Full Discussion: Red Hat or CentOS CMD
Operating Systems Linux Red Hat Red Hat or CentOS CMD Post 302546653 by alister on Thursday 11th of August 2011 07:22:18 PM
Old 08-11-2011
Disclaimer: It has been approximately 7 years since I used Linux regularly. However, I would be surprised if any of what follows is no longer applicable.

You should be aware that dmesg simply prints out the contents of a kernel log buffer. It is a ring buffer and it's not very large. New messages overwrite older ones once the buffer has been filled. If your kernel is feeling chatty, you could very well miss messages if you depend on dmesg.

dmesg can be convenient to check the latest kernel messages, but I would not consider it a comprehensive reporting tool in and of itself. For that you need to look elsewhere.

For example, soon after booting a linux machine, dmesg will print out all the startup messages spat out by the kernel during its initialization and hardware detection routines. Try dmesg a day later (or a minute later if the kernel has encountered some issue) and it's possible that the boot messages are now gone (they should still be available in a log file, even if they've been overwritten in the kernel buffer read by dmesg).

Regards,
Alister
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Red Hat 7.2.....

I just installed red hat 7.2 on my laptop. it's dual booted with xp and red hat. when i boot in to linux it boots up to the screen to ask me my name and pass....i put in root and my password. after this it goes to a blue screen and sits there. the after about 2 minutes it comes up with a fatal... (1 Reply)
Discussion started by: muzscman
1 Replies

2. Linux

Red Hat?

I have a Red Hat upgrade disk. I installed it and it corrupted my entire hard drive! I had gotten the disks out of a Dummy's book at my local library. Trying to install 'Red Hat', has cost me $100.00 in damages. (The cool part is my friend gave me that $100.00 part) Ah...A 120gig Hard Drive. Just... (3 Replies)
Discussion started by: hdk_mkr
3 Replies

3. UNIX for Dummies Questions & Answers

Red Hat 9 help

please help me how to install softwares in linux.i have a ethernet internet connection.i try to open the site on LAN to download internet client.but i cannot as our lan supports only internet explorer....i downloaded the linux client by booting thru XP......but i cannot c my NTFS partition thru... (0 Replies)
Discussion started by: shobhit143
0 Replies

4. Linux

red hat ee 2.6.9-42

hello. I would be greatfull if someone could tell me how will i see what dns server and gateway my red hat server uses. I tryied to find out by typing ifconfig command but i got : -bash: ifconfig: command not found , although man ifonconfig gives output with info about using that command. Is... (3 Replies)
Discussion started by: tonijel
3 Replies

5. Shell Programming and Scripting

telnet shell script on red hat 9 cmd line only

i would like to make a shell script (red hat 9 cmd line only) to telnet to my local isp's webmail server on port 25 and send it commands such as helo :) help would be much appreciated, and i found no posts similar that answered my question... the closest i've gotten to an answer from about 8... (3 Replies)
Discussion started by: kypeswith
3 Replies

6. Red Hat

Red Hat E 3

I'm am working with a Red Hat Enterprise 3 server. This is a dedicated server that is supposedly dedicated to one domain, but I have been tasked with trying to figure out if there are files on this system that are being accessed by other IP's. Does anyone know if how I would go about finding... (0 Replies)
Discussion started by: chrisPlusPlus
0 Replies

7. Red Hat

Red-hat

Hello, How do I see what IP addresses are connected to my machine? thanks (2 Replies)
Discussion started by: sonomao
2 Replies

8. Linux

Red Hat cluster

hi... I'm new to clustering concept, there was a issue in redhat clustering as "unable to load cluster.xml no such file or directory".. this issue restrict me from starting the cluster services and too execution of clustat command .. myself using vmware work station for the cluster setup with... (4 Replies)
Discussion started by: sriniv666
4 Replies

9. UNIX for Dummies Questions & Answers

how to know if i use "Red Hat Enterprise Linux" or "Red Hat Desktop" ?

how to know if i use "Red Hat Enterprise Linux" or "Red Hat Desktop" ? (2 Replies)
Discussion started by: ahmedamer12
2 Replies
lx(5)							Standards, Environments, and Macros						     lx(5)

NAME
lx - Linux branded zone DESCRIPTION
The lx brand uses the branded zones framework described in brands(5) to enable Linux binary applications to run unmodified on a machine with a Solaris Operating System kernel. The lx brand includes the tools necessary to install a CentOS 3.x or Red Hat Enterprise Linux 3.x distribution inside a non-global zone. The brand supports the execution of 32-bit Linux applications on x86/x64 machines running the Solaris system in either 32-bit or 64-bit mode. Supported Linux Distributions The lx brand emulates the system call interfaces provided by the Linux 2.4.21 kernel, as modified by Red Hat in the RHEL 3.x distributions. This kernel provides the system call interfaces consumed by the glibc version 2.3.2 released by Red Hat. In addition, the lx brand partially emulates the Linux /dev and /proc interfaces. Configuration and Administration The lx brand supports the whole root non-global zone model. All of the required linux packages are installed into the private file systems of the zone. The zonecfg(1M) utility is used to configure an lx branded zone. Once a branded zone has been installed, that zone's brand cannot be changed or removed. The zoneadm(1M) utility is used to report the zone's brand type and administer the zone. The zlogin(1) utility is used to log in to the zone. Application Support The lx zone only supports user-level Linux applications. You cannot use Linux device drivers, Linux kernel modules, or Linux file systems from inside an lx zone. You cannot add any non-standard Solaris devices to a Linux zone. Any attempt to do so will result in a zone that zonecfg(1M) will refuse to verify. You cannot run Solaris applications inside an lx zone. Solaris debugging tools such as DTrace (see dtrace(1M)) and mdb (see mdb(1)) can be applied to Linux processes executing inside the zone, but the tools themselves must be running in the global zone. Any core files generated are produced in the Solaris format, and such files can only be debugged with Solaris tools. ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWlxr, SUNWlxu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
mdb(1), zlogin(1), zonename(1), dtrace(1M), zoneadm(1M), zonecfg(1M), brands(5), zones(5), lx_systrace(7D) SunOS 5.11 19 Sep 2006 lx(5)
All times are GMT -4. The time now is 02:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy