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Old 07-01-2008, 09:58 AM   #1
ROMM
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Registered: Sep 2006
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Need help writing custom kernel to an iso I can boot from


Hello all,
I'm trying to create a custom kernel which I can later create a Live-CD of. While i've managed to create my custom kernel based on the 2.4.31 kernel from kernel.org, i'm really at a loss with how i can create a bootable CD image of the newly compiled kernel. Now i know there are already a few responses for the same on the slackware forum and quite a few other how-tos/guides on the net, most of them either pass over my head (*way* over it!) or don't seem to match what i'm trying to do with references to scripts i can't find . I'm doing all my custom-compiling on an RHEL3 2.4.21-47 GOS. Here's what i've done so far -

1)Downloaded kernel from ftp.kernel.org and unpacked it in the root home (as the readme suggests in the unpacked source)

2)make mrproper followed by make xconfig

3)Customized my kernel and then ran make bzImage (make zImage reported too big a size so had to use bzImage)

Now here's where i'm stuck. I don't need any additional modules so i don't need to run make modules and make modules_install. Now that i have my kernel compiled i would like to create a bootable Live-CD image of the bzImage which i can use to install my custom kernel on virtual machines or burn the iso onto a CD to install on usual desktops.

It would be much appreciated if somebody could provide me some clues


Thank you!!
 
Old 07-01-2008, 11:25 PM   #2
Swagata Paul
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Registered: Jun 2008
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OK,
U can read the following. This may help u.

http://www.ugrad.physics.mcgill.ca/w..._a_bootable_CD

Do u know how to create bootable USB Live-image ?

Try: http://linuxadminzone.blogspot.com/2...usb-flash.html
 
Old 07-02-2008, 04:27 AM   #3
Swagata Paul
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Registered: Jun 2008
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OK,
U can read the following. This may help u.

http://www.ugrad.physics.mcgill.ca/w..._a_bootable_CD

Do u know how to create bootable USB Live-image ?

Try: http://linuxadminzone.blogspot.com/2...usb-flash.html
 
Old 07-02-2008, 05:28 AM   #4
resetreset
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I just want to say this:

You obviously have more than *just* the kernel on the CD you wish to make, yes? I think mkisofs can help you. Please "man" it.
 
Old 07-03-2008, 02:13 PM   #5
knudfl
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This is a very good example of creating a custom iso :
http://www.asylumnation.com/blogs/am...post-2775.html

Works every time.

The boot loader used for cdrom is "isolinux" with a config file
easily to be edited (like /boot/grub/menu.lst can be edited)

Good luck !

Last edited by knudfl; 07-03-2008 at 02:20 PM.
 
Old 07-08-2008, 01:52 AM   #6
ROMM
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Registered: Sep 2006
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Thank You!

@Swagata - Thank you! The links are very informative!

@resetreset - Yes, you have that right Found an informative tutorial on mkisofs - http://www.ibm.com/developerworks/li...g-lnxw16BurnCD

Hope it helps others who might get as lost as me
 
  


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