Re: Which device did I boot from?

[Gregg Levine]

On 6/23/07, Dallas Clement <address@hidden> wrote:
> On Fri, 2007-06-22 at 05:41 -0500, Dallas Clement wrote:
> > Can anyone tell me how to determine which device Linux booted from.  I
> > am using GRUB to boot Linux.  My menu.lst config is this:
> >
> > title           GNU/Linux, kernel 2.6.21.1
> > root            (hd0,0)
> > kernel          /boot/kernels/bzImage
> >
> > Once booted from Linux, I would like to be able to tell which Linux
> > device, i.e. /dev/hdx or /dev/sdx corresponds to hd0.
> >
> > Is there a way to determine this?
> >
> > Thanks!
>
> For the benefit of anyone who cares, I found the answer to my problem.
> It has been solved by some engineers over at Dell.  They created a
> project called Enhanced Disk Drive services a.k.a EDD, which has been
> incorporated into the 2.6 Linux kernel as the CONFIG_EDD option.
>
> It worked marvelously for me.  You have to load the edd.ko module for it
> to work.  It will then collect the BIOS drive info into
> the /sys/firmware/edd folder.  The info concerning the boot device is
> found in the int13_dev80 folder.  You can simply compare the cylinders
> with the output of "fdisk -l" to determine the Linux partition name of
> your boot device.
>
> Regards,
> Dallas
>
>
>
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Hello!
Great news! I should also mention that it is available also in the
later 2.4 kernels as well, but a lot of users of Linux have reason to
believe that the 2.4 kernel family is essentially old news.

It's not. For some machines its the only way to go. When you get
around to it, please post someplace exactly what you did do.

--
Gregg C Levine address@hidden
"This signature was once found posting rude
messages in English in the Moscow subway."