FrameBuffer:How to enable
hi
[I m using ubuntu,P4-512Mb Ram] I was trying to enable the Frame buffer ,for this I did the following steps 1-Install the Linux source-2.6.12 in /usr/src 2-make menucofig 3-make 4-make module_install 5-make install this created one image and I copied this image into /boot folder 6-I wrote the following line into my grub(menu.lst) title frame buffer enable kernel /boot/bzImage root=/hda/sda1 ro quiet splash 7-upgrdae the grub Now If I upgrade the grub watever changes I made in the grub does not come on the boot option and If I dont upgrade the grub the New added title comes into boot option If I select new option then Kernel Panic occur there is one more thing If I write vga=791 in the menu.lst file nothing come on the monitor Hope I explained the problem,Can anybody help 8-Once i wrote initrd /initrd.... in the menu.lst then it fatal errors started coming says that device is not present,Do i need to create a file related to frame buffer Thanx in advance |
Framebuffer support needs to be compiled into the kernel. Its not an option you put in your menu.lst. You don't need to upgrade grub everytime you compile a new kernel. You only need to update your menu.lst with the option to use your new kernel. If you write vga=791 either you monitor and/or hardware won't support that resolution or you've not written everything in everything you need or, finally, you've not written it in correctly.
|
Hi penguin of wonder
thanx for ur reply yeah to enable the FB I made the changes while make menuconfig My monitor is latest Dell and H/w is P4 How can I check wether my h/w or monitor supports the framebuffer On compliation I m getting the bzImage,Is it ok to use bzImage for booting Thanx n Regards |
Quote:
A non-functioning framebuffer should not cause a kernel panic. You should post the precise error message you get so we can see exactly what the problem is. Quote:
|
I have used the default configuration
the error was Kernel Panic:Not Syncing:unable to mount root fs on unknown-block(0,0) |
I am struggling with two types of error
(1)When I do not write initrd /initrd-2.6...... line in menu.lst this error is Kernel Panic error and the error message is Kernel Panic:Not Syncing:unable to mount root fs on unknown-block(0,0) (2)If i write the initrd option in menu.lst then I get fatal error the messae was FATAL:Could not load /lib/modules/2.6.12/modules.dep:No such file or directory FATAL:Could not load /lib/modules/2.6.12/modules.dep:No such file or directory Done Begin:Mounting root file system... Begin:Running /scripts/local-top.... Done. Alert! /dev/sda1 does not exist .Dropping to shell |
Post your fstab, and the parts of the menu.lst that are in question. Perhaps you've written something wrong?
|
/etc/fstab: static file system information.
# # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 /dev/sda1 / ext3 defaults,errors=remount-ro 0 1 /dev/sda6 /backup ext3 defaults 0 2 /dev/sda5 none swap sw 0 0 /dev/hdb /media/cdrom0 udf,iso9660 user,noauto 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto 0 0 ***************************************************** part of menu.lst title Framebuffer(5may bzImage2) root (hd0,0) #vga=0x317 kernel /boot/bzImage root=/dev/sda1 ro quiet splash vga=0x317 #initrd /boot/initrd.img-2.6.12-10-386 savedefault boot please note that when I hide initrd line then Kernel panic occurs when I unhide then Fatal error occurs as I mentioned in my previous mai,I tried vga-791 also insted of hex values |
All times are GMT -5. The time now is 04:59 PM. |