Linux - GeneralThis Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.
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 have such task:
Server with 8G ram must boot over network ( dhcp+tftp ).
root fs should be loaded to ram. I created some images for testing and found following:
if image size is about 500m it works, but even 600m is not working.
Boot process stops at: RAMDISK: Compressed image found at block 0
no error,warnings.... it simply freeze.
I found some threads with similar questions, but i found no answers.
So question is: How to load large initrd image ( about 2-4 G ).
PS: Here is my init string:
APPEND initrd=cent.gz ramdisk_size=6291456 ramdisk_blocksize=1024 root=/dev/ram rw
it is unable to find / root. it loads the kernel then loads the image but it stops when it cant find root. tell it where root is at. sence it will neve stop looking for the root. freezes. tell it root =/dev/ram0 see if that helps.
Last edited by Drakeo; 02-10-2008 at 12:33 AM.
Reason: miss speeled and typo
Not sure if this will help, but IIRC the kernel makes the ram disk for the initrd a default size and if your initrd is bigger than that, it won't be loaded fully and will not mount or will mount with missing data. However, you can control the size the kernel will use for the initrd with the ramdisk_size command line option. You'll need to put this into the pxelinux config file for the host in the append configuration line (where you specify command line options to pass to the kernel). I believe the number you give has to be in kilobytes. I've used this top load big ramdisks before, but never one as big as yours... good luck!
Big thanks for answers.
2Drakeo: I`ll try on monday to set /dev/ram0 in fstab, may be I forgot about it.
2btmiller: As you see, I wrote in my first post, that I set ramdisk_size=6291456.
2all: My some other solution exist for my task ?
I found a lot of questions, but no answers....
Nowdays I is new type of servers. If I have about 10-20 Gb of ram, I don`t need hdd at all.