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    SymbiosisSystems reacted to ShadowDance in Helios64 - freeze whatever the kernel is.   
    @jbergler I recently noticed the armbian-hardware-optimization script for Helios64 changes the IO scheduler to `bfq` for spinning disks, however, for ZFS we should be using `none` because it has it's own scheduler. Normally ZFS would change the scheduler itself, but that would only happen if you're using raw disks (not partitions) and if you import the zpool _after_ the hardware optimization script has run.
    You can try changing it (e.g. `echo none >/sys/block/sda/queue/scheduler`) for each ZFS disk and see if anything changes. I still haven't figured out if this is a cause for any problems, but it's worth a shot.
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    SymbiosisSystems reacted to FloBaoti in Unable to boot   
    On an up-to-date Helios64, around 50% of boots are stuck at "Starting kernel ...".
    As device is having kernel panics every day, it reboots and then sometimes can't start, stuck on this.
    When will we have a stable device ? I can't understand selling devices which just can't run !
  3. Like
    SymbiosisSystems reacted to ShadowDance in How-to start fans during early boot   
    If you want the fans of your Helios64 to start spinning earlier, look no further. This will allow the fans to spin at a constant speed from the earliest stage of initrd until fancontrol is started by the system. My use-case is for full disk encryption and recovery in initramfs, sometimes I can have the machine powered on for quite a while before fancontrol starts. Or, if the boot process encounters an error the fans may never start, this prevents that.
    Step 1: Tell initramfs to include the pwm-fan module
    echo pwm-fan | sudo tee -a /etc/initramfs-tools/modules  
    Step 2: Create a new file at /etc/initramfs-tools/scripts/init-top/fan with the following contents:
    #!/bin/sh PREREQ="" prereqs() { echo "$PREREQ" } case $1 in prereqs) prereqs exit 0 ;; esac . /scripts/functions modprobe pwm-fan for pwm in /sys/devices/platform/p*-fan/hwmon/hwmon*/pwm1; do echo 150 >$pwm done exit 0 Feel free to change the value 150 anywhere between 1-255, it decides how fast the fans will spin.
    Step 3: Enable the fan script for inclusion in initramfs and update the initramfs image:
    sudo chmod +x /etc/initramfs-tools/scripts/init-top/fan sudo update-initramfs -u -k all  
    Step 4: Reboot and ejoy the cool breeze.
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