[BACKTRACK 5 R3] Blackscreen after installation on HD ( netbook )

[omegear]

Hello Everyone,
I recently tryied to install BT5 R3 on my new Asus EEE X101CH without sucess. ( USB unetbootin live )

The problem :
The VGA screen driver 791 seems to fail. The screen turns black if I boot in this mode. "Unbuntu 10.0.4" then * black screen *

Pre-Solution :
I sucessfully entered into Backtrack5r3 when I edit the default launch option from "vga=791--" to "vga=0x315" in the grub.

Basically I fixed the problem but not entierly because I want a persistent copy on the Hardisk.

So here is the second problem, which I'm currently stuck at. With the R3 version of Bactrack I don't have acess to the grub once it's installed on hard-disk and it seems to install it with default settings (vga=791) so basically I'm stuck because when it boots, it load everything, no login, no startx requiered and no grub acess so I can't edit anything.

Questions :
1. Is it possible to modify the boot option before it launch startx automatically with a hotkey or something ?
2. If not, is it possible to modify the boot option from the ISO directly ?

Thank you for your time

[D4rkH4nd8]

This is the same promblem i have also.
Were do i change once installed, I need to change it to 'xforcevesa" it allows the live to work with no issues.
So i know there has to be some were i can change when i use live to acces the HD and edit it.
Thank you for any help you can give.

[happyPancake]

Hello Everyone too,

I had the same problem on my Acer Aspire One, the screen went black after the Ubuntu 10.04 screen, the most appearing solution is to edit the grub.cfg file. Your problem with editing the grub.cfg sounds similar to mine, so thats what I did:

Make sure you are editing the right file ! The file in /boot/grub/grub.cfg only have reading access so all you´re going to edit on this file will be lost after the next reboot. ( I edited this file about 5 times) Edit the file in /etc/default/grub/grub.cfg ,because there you also have writing access ( as root for sure), then you can save your changes without loosing them by rebooting. Don´t forget to update grub with "update-grub" , otherwise your changes don´t become operative.

I hope it will help you !

happyPancake

[D4rkH4nd8]

I did the same thing lol. Oddly i dont have a grub folder in /etc/defualt/NOGRUNB .... theres a grub.d but it has no grub file.

I did the same thing lol. Oddly i dont have a grub folder in /etc/defualt/NOGRUNB .... theres a grub.d but it has no grub file.

(UPDATE) I have some how gotten to boot from HD by spamming the E key when it goes to the black screen. It just starts right up. If i dont it just sits at a black screen with blinking white curser/bar what ever.
SO thats 1/2 of the issue lol. Now if i can fix it so i dont have to spam the button. Cause some times it wont work and i have to power down 3 ~4 times and try again.

[gilm0079]

I'm having the same problem with my BT5R3 install. After POST I tell it to boot to the USB drive and it just sits at a black screen with a blinking cursor. I tried spamming e like you said and it doesn't work for me. Wondering if you found a fix.

[arg39fy]

select recovery mode at boot and then go down to the last option and open a root terminal

login
then

startx

nano /etc/default/grub

then
go to where it says "VGA=791"
edit to your liking (i used "VESA=315")
and then

update-grub


solved it for me and I am now typing on my asus running backtrack

[jvlavl]

I also had that problem after installing Backtrack 5 R3
changed the grub to vega=0x315 runs perfectly now.

But i dont get my resolution higher then 800x600 would like to change that to 1024x768

anybody?

[miraeau]

I have the same issue with my aspire one. After hd boot i see a purple ubuntu 10.4 splash screen and after that screen goes black. I dont have a clueon what to do, I cant get the terminal open in anyway... Anybody ?