Update - with Imac8,1 booting linux now with 4GB RAM,
the linux load video settings shown for 4GB RAM (with blank boot linux video
screen) are now
Video mode 1920x1200 - 3...@60
Video frame buffer: d052( was 0x9052 for 2GB RAM )
The VFB value needs changing again, when I have the sour
1. Initially - With 2GB RAM
Imac8,1 has 256MB VRAM Radeon HD2600 1920x1200
MBP4,1 has 512MB VRAM Nvidia 8600 1920x1200
Imac8,1 grub boot linux shows Video frame buffer at 9052 and blank
screen.
MBP4,1 gives 9000 and scrambled video.
2. By overriding video_base to set it at 2GB
grub_l
On Tue, Feb 17, 2009 at 10:56 AM, Peter Cros wrote:
> There is also a problem with Apple 64 bit grub.efi booting ubuntu 2.6.27
> linux in which the kernel is booted and starting but all video is lost after
> the boot command. I don't know if there may be a connection.
> A temporary fix is to chan
There is also a problem with Apple 64 bit grub.efi booting ubuntu 2.6.27
linux in which the kernel is booted and starting but all video is lost after
the boot command. I don't know if there may be a connection.
A temporary fix is to change Video frame buufer settings in
/loader/i386/efi/linux.c:
Remark 1: when loading OS grub has to call grub_efi_exit_boot_services
which unloads efi nearly completely. On the other hand it shouldn't be
called when returning with exit command. Perhaps we should split
grub_machine_fini in two: one for preparing for OS and other for
exiting. But then when
Hello. I found a serious problem which may be the cause of linux not
booting on some efi systems. grub_machine_fini is called before
grub_linux_boot. grub_machine_fini returns all memory allocated by grub2
to efi. This includes all memory used to load modules. So actually efi
can rightfully des
