Monday, April 23, 2012

System Time Issue on Dual Boot Win7 and BT5R2

I've been running a dual boot setup of Window 7 and BT5R2 and noticed the system time on each kept changing. I'd boot into Windows from BT5R2 and the system time would be way off. Did a little research and found the fix.

Open the /etc/default/rcS file:

nano /etc/default/rcS (file name is case-sensitive as usual under Linux)

Make sure the line containing UTC is set to no:

UTC=no

Save the file and exit.

Now make sure to set the correct time zone/clock settings for you location and when you reboot each operating system should reflect the correct time.

Time zone can be changed with the following command:

dpkg-reconfigure tzdata

You'll need to use sudo -i or just sudo in order to execute the command.

Saturday, April 7, 2012

BACKTRACK 5 R2 or BT5R2 Blank Screen Issue

I've been working with BackTrack for a bit and needed to install the BT5R2 variant on a Lenovo T410s. What I found is that it boots fine, but once I tried to load the GUI or xwindows I was greeted with a blank or black screen and a blinking caps lock; strange. Here's what I did to get BT5R2 installed:

Boot normally and login as the root user.

DO NOT execute the startx command yet.

Execute the following command below exactly as listed:

modprobe i915 modeset=1

The modprobe command will load the Intel video drivers and allow xwindows to load.

Now you can use the startx command to load the GUI or xwindows, whatever you want to call it.

Once in the GUI you can run the Install BackTrack script to load BT5R2 on to the hard drive.

Once BT5R2 is installed you'll need to make the following modifications to GRUB so the Intel video drivers will load on each subsequent reboot.

Execute the following command:

nano /etc/default/grub

Once the file is open, search for the following line:

GRUB_CMDLINE_LINUX_DEFAULT="text splash vga=791"

Change the above line to the following:

GRUB_CMDLINE_LINUX_DEFAULT="text splash vga=791 i915.modeset=1"

Now save and close the grub config file. Should be Ctrl + O, then Ctrl + X

Now execute the following command:

update-grub

Reboot and startx should work fine.

The solutions above were discovered/developed by others, although, in some cases, the direct solution path was not always obvious. If anything, I organized a collection of solutions and they worked for me. I hope this helps someone out.