Thread Title: Graphics issue while loading BT5 GUI
I am new to BackTrack and am simply trying to load into the BT5 GUI from a live USB. I downloaded the 64-bit BT5 KDE ISO and checked the hash MD5, which checked out fine. I then followed the guide listed on the following page:
Once finished, I restarted the computer and booted into the USB. On the first screen, I selected the 'text' option. Once on the command screen, I tried to initialize the GUI by typing startx. The following screen had multiple lines rapidly flashing, but I am able to make out some lines with 'radeon' in them. Eventually the screen would go blank temporarily and then reappear as vertical white and red lines, or it would simply get stuck on the previous screen until I would power it off.
How I have tried to resolve the issue:
Following up on the possible graphics issue, I booted into my normal OS (Windows 7 64-bit), and updated my graphics drivers. After trying again and getting the same result, I did some searching around online and found this page:
Once booted into the USB, I pressed tab on the text option. Changed
text splash vga = 791--
and pressed enter. From there once I reached the command screen, I entered
text splash nomodeset vga=791 radeon.modeset=0
scrolled to the line
and changed it to
GRUB_CMDLINE_LINUX_DEFAULT="text splash nomodeset vga=791"
Hit esc, held shift and pressed :, pressed x and enter, and finally "update-grub".
GRUB_CMDLINE_LINUX_DEFAULT="text splash nomodeset vga=791 radeon.modeset=0"
When I try to use update-grub, I receive the following error:
Regardless of this I still tried to then use startx. I did get further than usual and I was able to see a screen with the red backtrack background, and it had a black box in the center which said loading and also had four chinese (japanese?) characters. After roughly 20-30 seconds the screen would go blank and hang until I eventually would turn off the computer.
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
I have additionally tried using DVDs where I burned the ISO files using roxio creater on slow speed (using the same MD5-checked files). I have tried using 64 bit KDE and Gnome, both ending in the same errors. I have also tried unplugging all peripherals from my laptop (external mouse, keyboard, dual monitors, headset, usb hub, ethernet) and again, still had the same problems.
System Specs (Dell Studio XPS 1645):
64-bit Windows 7 SP1
Intel i7 Q820 1.73 GHz (3.06 w/ turbo boost)
AMD Radeon HD 5700M
Intel Centrino Advanced-N 6250 AGN Wireless
Please let me know if there is anymore information I can provide and I am looking forward to any help I can get. Thanks ahead of time and I can't wait to get this working. BT5 looks like some amazing software!