[PLUG] boot from USB, run on RAID?
Robert Citek
robert.citek at gmail.com
Mon Jun 16 23:28:47 UTC 2008
On Mon, Jun 16, 2008 at 12:07 PM, Kurt Sussman <plug at merlot.com> wrote:
> Robert Citek (robert.citek at gmail.com) typed this ...
>> A USB key is just like any other disk in that it'll have an MBR, a
>> boot loader, and partitions. They key is that your MoBo needs to know
>> how to recognize the USB stick and boot from it. That may require
>> some adjustment in you BIOS and some BIOSes do a better job than
>> others.
>
> This is useful for things like booting an installer (one-time USB boot).
> For a permanent USB boot device, I've learned that I have to build a
> custom initrd file with a linuxrc script that mounts the non-boot disks
> and uses pivot_root to make them the boot disk.
I don't follow. What's a one-time USB boot? What's a permanent USB
boot device? What distro are you using?
FWIW, I boot my laptop from my external USB drive for all my Linux
work. That way the internal Windows drive remains untouched. Some
photos:
http://www.flickr.com/photos/rwcitek/tags/usb/
In the photos you'll see that I use Grub to choose from among eight
(8) OS installs on a single USB drive, including Debian, Ubuntu, and
CentOS. I created that drive using instructions almost identical to
the one's I wrote in the previous post.
Regards,
- Robert
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