Slackware Install -probable Grub problem- boot OK from Flashdrive
Thought I'd give Slackware a try, Ubuntu is causing me samba problems.
Install went easily, using Grub to multi-boot,
however, when I boot from flash drive Slackware install created, everything OK. When I boot from HD, after initial decompression, screen black out.
I believe that the boot continues to Login.
I can login, and issue startx, which gets a lot of drive activity but no display still. I can also login blind, and shutdown the system.
Been reading up on grub2, not sure where to look for config problem - guessing something like vga settings?
The files on the flashdrive are so simple compared to what grub apparently does, I am lost.
When you first boot Slackware after installing, it stays in text console mode. I think the problem you have is the frame buffer graphics mode is not compatible with your video card.
You can try adding these kernel parameters in the grub menu entry for Slackware on the line that has "/boot/vmlinuz".
The menu entry for Slackware will look similar to this. Your GRUB 2 menu entry may look different and there may be a few more options on the line with "/boot/vmlinuz". Add the "vga" and "video" options to the end of that line. If the "vga" or "video" option is already there, then change the existing options.
Create a text file in the Slackware partition named "/etc/modprobe.d/disable-nouveau.conf". The file should contain this to disable Noveau.
If that does not solve the problem, please post information about your graphics card. Use this command on a version of Linux that does boot and post the results here.
blacklist worked, why?
Thank you Erik_FL.
Blacklisting was the immediate solution, the other things did not succeed.
The card reports as: nVidia Corporation g98 [GeForce 8400 GS] (rev a1)
it is a PNY GeForce 8400 GS pci-e card
So with nouveau disabled, I get low res from flashdrive boot and / or HD boot.
With nouveau enabled. I only can see a a display after nouveau goes active from the flashdrive.
(I see it start in the flashdrive boot) as the text goes hi-res.
What is happening differently to this "driver"?
Obviously, a lot more is going on with grub than with the flash drive boot....
I tried mkinitrd from running slackware boot, but that did not succeed.
I don't know a lot about GRUB 2 but there is a way to set the graphics resolution before booting Linux.
In the Slackware menu entry add this line to set the graphics resolution.
To make sure that GRUB can tell the kernel the correct video resolution, you should have these modules loaded at the beginning of your "grub.cfg" file.
For a computer with a BIOS.
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