Letux-OS

Discussion in 'Alternative OS' started by hns, Sep 17, 2017.

  1. Letalis Sonus

    Letalis Sonus Advanced Member

    Joined:
    Mar 5, 2009
    Messages:
    1,036
    The systemd journal is just yet another independent component that you may choose not to install - that's the best part about it.
     
  2. levi

    levi Still fresh, damnit!

    Joined:
    Oct 6, 2008
    Messages:
    10,563
    Location:
    Somewhere off the coast of the EU
    How do you read log messages without it? I wouldn't run any linux where I can't. Or do they get dumped to /var/log like the old init system used to?
     
  3. Letalis Sonus

    Letalis Sonus Advanced Member

    Joined:
    Mar 5, 2009
    Messages:
    1,036
    By doing what people have been done for decades prior to systemd: Using some other random-ass logger service like rsyslog or syslog-ng. Being a logger is not an init-system's job.

    I am seriously baffled that you even had to ask about that.
     
  4. levi

    levi Still fresh, damnit!

    Joined:
    Oct 6, 2008
    Messages:
    10,563
    Location:
    Somewhere off the coast of the EU
    Sorry, I've only been administering my own linux boxes for about twenty years now, and thus far I've always used prespun distributions which have always come with logging enabled, and have thus far always been satisfied that logs are getting generated and are accessible to me, and haven't felt the need to investigate further. I've never been trained as a systems administrator, I'm an applications coder by trade, and while bits and pieces of how the kernel and subsequent subsystems work have interested me, I've not gone into logging yet.
     
  5. sle85276

    sle85276 Still Fresh

    Joined:
    Aug 25, 2012
    Messages:
    29
    Short update about the USB-A interface of my Pandora: I dug out my ancient electrical knowledge, grabbed an old USB 2.0 cable, cut it in the middle and connected a voltage meter to the open end. The outcome is that the voltage meter shows 5V when running the SuperZaxxon Linux but 0V when running the letux Linux.
     
  6. levi

    levi Still fresh, damnit!

    Joined:
    Oct 6, 2008
    Messages:
    10,563
    Location:
    Somewhere off the coast of the EU
    Superzaxxon should disable that 5V line if nothing is using it. IIRC you can disable it from the pandora settings application. Maybe Letux doesn't enable it in the first place.
     
    Swordfish II likes this.
  7. sle85276

    sle85276 Still Fresh

    Joined:
    Aug 25, 2012
    Messages:
    29
    If the debugfs is not lying to me SuperZaxxon and Letux, both pulling the GPIO_164 up. This means that the switch (TPS2041B) for the USB_HOST_5V is on. This brings me to the conclusion that the power/voltage on the input of the switch is missing when running Letux. Reading the schematic further the problem might be the REGEN pin of the TWL4030 not enabling the TPS61029DRC to power the input of the TPS2041B
     
    levi likes this.
  8. sle85276

    sle85276 Still Fresh

    Joined:
    Aug 25, 2012
    Messages:
    29
    Below are some wild guesses. hns may, when he reads the text below, start laughing so loud that I will hear him (he is only 70 km away).

    Sadly there is not much usage of the regen feature of the twl4030 in the OMAP3 dts files or I was not able to find it. I found only a comment in the file omap3-ldp.dts [1]. Looking at the patch that introduced the comment [2] the only stuff that looks twl4030 related are are two twl_gpios (7, 15). The (twl_)gpio 7 is mentioned together with LEDA in the dtsi file of the pandora. So the gpio left is 15. Does the device tree of the pandora just need another regulator been enabled via twl_gpio 15?

    [1] https://git.kernel.org/pub/scm/linu...arch/arm/boot/dts/omap3-ldp.dts?h=v5.0.4#n192
    [2] https://git.kernel.org/pub/scm/linu...s?id=bc10f310e2856f7bb80875fd7d8386836df4c85e
     

Share This Page

Loading...