I'm new to Linux, am using CentOS 6.3, and am attempting to install CentOS 5.8 ISO to a pen drive following instructions from here.
My pen drive is
/dev/sda and partition 1 is
vfat. It's mounted on
/mnt/usb. Here's what happens when I try to use
[root@localhost ~]# grub-install –root-directory=/mnt/usb /dev/sda More than one install_devices? Usage: grub-install [OPTION] install_device Install GRUB on your drive. -h, --help print this message and exit -v, --version print the version information and exit --root-directory=DIR install GRUB images under the directory DIR instead of the root directory --grub-shell=FILE use FILE as the grub shell --no-floppy do not probe any floppy drive --force-lba force GRUB to use LBA mode even for a buggy BIOS --recheck probe a device map even if it already exists This flag is unreliable and its use is strongly discouraged. INSTALL_DEVICE can be a GRUB device name or a system device filename. grub-install copies GRUB images into the DIR/boot directory specfied by --root-directory, and uses the grub shell to install grub into the boot sector.
I don't understand the error message in this context, What am I doing wrong?