BUG install hangs -- conflicting graphics drivers?

[rylen]

I am doing a new install of PiaF on a freshly formatted hard drive following these Nerd Vittles directions: http://nerdvittles.com/?p=9526

Everything runs fine* until I get past the step "./piaf3-install". Then the system reboots, shows a number of startup messages, and hangs. The last four lines are:

udev: starting version 147
[drm] Initialized drm 1.1.0 20060810
[drm] radeon kernel modesetting enabled.
fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver

I heard things process for a minute. Then it hung. I can reboot, reach that point, and it continues to hang.

I saw an older post by someone with the same problem and am wondering if there is a solution that does not turn off parts of the installation.

Interestingly, I now get two versions of CentOS to choose from. The default boot, 6.6 hangs. An alternative, 6.4 seems to work.

*The lines

sed -i 's|quiet|quiet net.ifnames=0 biosdevdame=0|'/etc/default/grub grub2-mkconfig -o /boot/grub2/grub.cfg

fail. I've read elsewhere that they do not apply to all installations and is not a concern.

 

[Bill Boyer]

I had to use the basic video driver option on my Centos install as the default install hangs on reboot with a scrambled screen and flashing caps lock and scroll lock lights on the keyboard. This is on the onboard video for the random motherboard the boss decided would work. I also had the same issue with the above sed command, and the grub2-mkconfig command is missing. I skipped over this and continued with the install.

 

[atsak]

Try edit grub and remove the vga=791 line or whatever it is at the end of the kernel command. That fixes video problems on Hyper V - wondering if something similar would work here like the article you mentioned. It's not turning off any part of the install to try that.

 

[rylen]

Thanks for the replies. I've been removing the "vga=791" line and it works.

 

[nickpl]

I just wanted to add that I also ran into this issue on Hyper-V (2008 R2). My fix was to change it to vga=773, honestly I don't know enough about Linux kernels/boot options to even know if setting it to anything is important, but I'm assuming their must be a reason PIAF is adding that so I didn't want to delete it altogether.