Sir , leave this problem for the time being, i will try this later . Let me tell u the story of real problem. During a Linux slc6.2 install to my usb hard drive, GRUB was automatically installed to the wrong MBR (master boot record). The files were on the /boot of the Linux drive, but the Windows 7’ drive’s MBR was used. This meant without both drives, I could not boot either operating system. I have tried grub-install /dev/sdb which is usb disk and grub-install /dev/sda also which is main disk. but problem is as it is. Linux is there on my usb disk i just want to boot it independently on any system. Please help.. regards Vivek Chalotra GRID Project Associate, High Energy Physics Group, Department of Physics & Electronics, University of Jammu, Jammu 180006, INDIA. On Mon, May 14, 2012 at 4:45 PM, Bluejay Adametz <[log in to unmask]>wrote: > > 04:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n > > Wireless LAN Controller (rev 01) > > Looks like this may be helpful: > http://elrepo.org/tiki/wl-kmod > > - Bluejay Adametz > > You manage things; you lead people. - Adm. Grace Murray Hopper > > -- > > > NOTICE: This message, including any attachments, is only for the use of > the intended recipient(s) and may contain confidential and privileged > information, or information otherwise protected from disclosure by law. If > the reader of this message is not the intended recipient, you are hereby > notified that any use, disclosure, copying, dissemination or distribution > of this message or any of its attachments is strictly prohibited. If you > received this message in error, please contact the sender immediately by > reply email and destroy this message, including all attachments, and any > copies thereof. >