Hi,
I have had erratic results with recent Fedora 20 kernels and a Beagle
Bone Black, with some kernels failing to even boot. The latest kernel -
3.14.2-200.fc20.armv7hl - seems to be in generally good shape. Ethernet,
USB and the XFCE desktop all seem to be working well. However, one
regression seems to have occurred. With older kernels I got the following:
modprobe cpufreq-cpu0
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
300000 600000 800000 1000000
which I think is the correct set of frequencies for this board. Certainly the highest speed should be 1GHz. With3.14.2-200.fc20.armv7hl I get the following:
modprobe cpufreq-cpu0
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
275000 500000 600000 720000
If a kernel fails to boot is there a simple way to be able to boot the previous kernel? So far I haven't found the right procedure, and I have been restoring from a backup copy of the SD card each time.
Regards,
Steve
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