R7 250X and Kernels 4.0.7 thru 4.1.20
Posted: Sun May 15, 2016 7:51 pm
Hi Christian,
Performing a 12.04 install with DVD and Kernel 4.0.7 led me to a riddle. I have tested this and determined repeatability. Know that this , at the least, gets Ubuntu 12.04 DVD loaded for an install. My finding using 4.0.7 on CF Card:
1st CFE> ramdisk -addr=0x24000000 -fs-iso atapi0.1:casper/powerpc64/initrd ( after pressing ENTER, hit up arrow to re-display statement and ENTER again, this time no error reading )
2nd CFE> setenv bootargs "root=/dev/ramdisk file-/cdrom/preseed/ubuntu.seed boot=casper - ( hit ENTER this forces verbose ) however, it seems that certain things are not started, but, it avoids the Ubuntu splash screen that locks up booting )
3rd CFE> boot -elf -noints -fatfs cf0:vmlinux-4.0.7
As stated, this method has given me successful and consistent boots with the DVD and at least provides the install capability. I am just puzzled that the Ubuntu splash screen will freeze booting everytime when booting with normal CFE Command line entries.
Booting my Ubuntu install on "sdc1", I have discovered the same thing.
1st CFE> setenv bootargs "root=/dev/sdc1 - ( ENTER ) goes into verbose
2nd CFE> boot -elf -noints -fatfs cf0:vmlinux-3.17 worked! 4.1.20 worked! Rasterizer graphics only. No SuperTuxKart, glxgears sloow, but, the updates work and this gives a Linux install as a base to get Ubuntu Mate 16.04 installed for those with an R7 250X.
Just wondering why it works like this. I guess is what puzzles me. Just reporting an interesting finding.
Cheers!!
John
Performing a 12.04 install with DVD and Kernel 4.0.7 led me to a riddle. I have tested this and determined repeatability. Know that this , at the least, gets Ubuntu 12.04 DVD loaded for an install. My finding using 4.0.7 on CF Card:
1st CFE> ramdisk -addr=0x24000000 -fs-iso atapi0.1:casper/powerpc64/initrd ( after pressing ENTER, hit up arrow to re-display statement and ENTER again, this time no error reading )
2nd CFE> setenv bootargs "root=/dev/ramdisk file-/cdrom/preseed/ubuntu.seed boot=casper - ( hit ENTER this forces verbose ) however, it seems that certain things are not started, but, it avoids the Ubuntu splash screen that locks up booting )
3rd CFE> boot -elf -noints -fatfs cf0:vmlinux-4.0.7
As stated, this method has given me successful and consistent boots with the DVD and at least provides the install capability. I am just puzzled that the Ubuntu splash screen will freeze booting everytime when booting with normal CFE Command line entries.
Booting my Ubuntu install on "sdc1", I have discovered the same thing.
1st CFE> setenv bootargs "root=/dev/sdc1 - ( ENTER ) goes into verbose
2nd CFE> boot -elf -noints -fatfs cf0:vmlinux-3.17 worked! 4.1.20 worked! Rasterizer graphics only. No SuperTuxKart, glxgears sloow, but, the updates work and this gives a Linux install as a base to get Ubuntu Mate 16.04 installed for those with an R7 250X.
Just wondering why it works like this. I guess is what puzzles me. Just reporting an interesting finding.
Cheers!!
John
