[CentOS-docs] Correction to HowTos/InstallFromUSBkey

[Phil Schaffner]

Yves Bellefeuille wrote on 05/01/2012 10:07 PM:
> On Sunday 29 April 2012, Alan Bartlett<ajb at elrepo.org>  wrote:
>
>> Thank you, Yves. I've taken care of both of those points. Would you
>> like to check that it now reads correctly, please?
> There are a few more points that should be added. They should all appear
> after the end of the current list.
>
> During the installation process, the user is asked "What type of media
> contains the installation image?" The user should select the first
> partition on the USB key, which usually appears in the menu under "Hard
> drive", then "/dev/sdb1".
>
> After partitioning, the user is asked whether to install the Grub boot
> loader and where to install it. After booting from the USB key, the BIOS
> thinks that the USB key is the first drive. To install the Grub boot
> loader on the hard drive, which is the usual case, the user must change
> the order of the hard drives using the Grub installation options.
>
> After the Grub installation options, the following error message
> appears: "Missing ISO 9660 image: The installer has tried to mount image
> #1, but cannot find it on the hard drive". The installation program is
> looking for the ISO file on the first partition of the USB key, but it's
> on the second partition. The user should go to a terminal (Ctrl-Alt-F2),
> unmount the first partition of the USB key ("umount /mnt/isodir"), mount
> the second partition ("mount -t ext3 /dev/sdb2 /mnt/isodir"), return to
> the installation program (Ctrl-Alt-F6) and choose "Retry".
>
> (Unmounting /dev/sdb1 doesn't interfere with the installation process. I
> tried creating a link from /dev/sdb1 to the ISO image, but that didn't
> work, because /dev/sdb1 contains a VFAT or FAT32 flle system which
> doesn't support links.)
>

Thanks for the suggestions, and the help editing..  I will try to get to 
it soon.

Phil