Linux - EnterpriseThis forum is for all items relating to using Linux in the Enterprise.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I've installed RHEL 5 for my server and configured kernel 2.6.18-8.el5 as a Monolithic kernel (loadable modules aren't supported). Now I need to create a rescue CD. I put the new CD to the driver and use this command: cp /boot/vmlinux-2.6.18-8.el5 /dev/cdrom
But it announces that: Cannot create a file in /dev/cdrom, it is a read-only file system.
Could you please give me the way to create a rescue CD?
Yes, but it's a good place to start by telling someone they need to burn the CD when they're trying to copy a file to a CD device using the cp command. And pull my head in? I never said anything about your posts.
Yes, I need a rescue CD to reboot the machine with my configured kernel in emergency cases.
There are three utilities I've used, with great success. Check out the mkcdrec, systemimager, and mondoarchive utilities. All of them can make bootable images, suitable for either network or DVD/CD booting and recovery from a 'bare metal' situation.
IMHO, it's best to make a bootable CD with a kernel, custom-suited to your hardware. That way, if you boot from it, you know you'll have all the hardware modules needed to get disk drives/network adapters/video, etc., working right off the bat. From there, you can (at least with mondoarchive), pull an ISO from a network resource. That'll let you have an aged recovery CD in the drive, with a current 'snapshot' (created with CRON or other scheduled job), on a network resource elsewhere.