Re: how to boot a hard disk kernel from a live CD?
- From: Douglas Mayne <doug@xxxxxxxxxxxxxxxxxx>
- Date: Wed, 31 Jan 2007 12:54:55 -0700
On Wed, 31 Jan 2007 12:10:56 -0600, Cameron Fitzhugh wrote:
I have a CD that I can boot from and start up the Linux kernel from the CD.Your options are simple. (1) Either setup your hard disk as a dual boot,
Then I can mount and access Linux partitions on the hard disk.
The computer is not set up for dual booting -- if I just boot the computer,
it goes directly to XP.
The kernel on the CD doesn't have the right drivers for the X system on this
computer, so I can't start up X-Windows. But there's a kernel generated for
this computer in /boot on one of the Linux partitions, so if I could boot
it, I would be able to run KDE. The /boot directory also contains grub.
Is there a way, after I've booted the live CD, to tell it to re-boot using
the Linux kernel and the root directory on the hard disk?
Thanks,
Cameron
or else, (2) create a grub bootable floppy/CD. An external boot disk has
the advantage that it could be safer; you are less likely to break
something by changing the bootloader. BTW, grub setup isn't too difficult
if you're careful. A dual boot system has the advantage that the bootstrap
process will be slightly quicker using a magnetic disk.
Continuing this discussion, and assuming you want to continue to boot from
an external media, such as a CD or floppy, then you should be aware that
the grub loader is your friend. ;-) For one thing, grub is a very flexible
boot loader, and the examples below illustrate some of of its nice
features.
Grub has an interactive shell which can read files on filesystems to find
your kernel, etc. Here is one example, assuming you have booted using
grub, and have used 'c' to enter its shell:
You can specify a configfile (menu):
grub> root (hd0,2)
grub> configfile /boot/menu.lst
You can specifiy a kernel:
grub> root (hd0,2)
grub> kernel /boot/linux-26
You can chainload to your Windows setup:
grub> rootnoverify (hd0,0)
grub> makeactive
grub> chainloader +1
grub> boot
Caution: Substitute values which are appropriate for your system. Be
careful when making changes to your MBR and partitions, if applicable.
I write about grub quite often, and have a simple bootable grub CD for
download, as explained here:
http://groups.google.com/group/comp.os.linux.setup/msg/602040b59e1eac50
--
Ripley: And you let him in.
http://www.imdb.com/title/tt0078748/quotes
.
- References:
- how to boot a hard disk kernel from a live CD?
- From: Cameron Fitzhugh
- how to boot a hard disk kernel from a live CD?
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