Posts by aschuster


    Thank your for the extensive tutorial. I got everything working and was able to rebuild the patched image, as well as flash it and the WiFiDirect (P2P) connection is working as well.

    However, this does not enable the use case i am aiming for, as it does not change the fact, that iw list only lists the available modes mentioned in #1. What i originally thought to be a configuration/driver issue seems to be hardware related after all, as the mode ibss remains unavailable. WifiDirectmerely introduces as softAP, but no real, dynamically routed AdHoc Network. From my current understanding, using the PicoCore MX8MP Boards in an adhoc network is not possible without an additional, external network interface, as the on-board chip does not support ibss mode.

    If there is anything i am missing or misunderstanding i am very happy to do further testing.

    Thanks for the help nonetheless.


    thank you for you answer.
    I have not used the tutorial you mentioned in #2 from the get-go, but figured out my own way to install uap0:

    1. > iw dev mlan0 interface add uap0 type __ap

    This does work for the access point, which is not the issue, as i am trying to get ad-hoc mode (IBSS) to work. AP-mode works fine with all the imx8mp boards i have.

    To get IBSS-mode to work, I also tried the command mentioned in #3 before and did so again just now, but it gives the following error:

    1. > iw dev mlan0 ibss join test 2412
    2. command failed: Operation not supported (-95)

    This does not come as a surprise though, as ibss is not listed in the supported interface-modes i mentioned in #1.

    It looks to me like this is a kernel/driver configuration issue?

    I am trying to import F_S_Development_Machine-Fedora_27_V1.6.ova for 64-bit (i.MX8) into VirtualBox 6.1.26 and keep getting the following error:

    1. Failed to import appliance C:\Users\Alex\Downloads\F_S_Development_Machine-Fedora_27_V1.6.ova.
    2. Result Code: E_INVALIDARG (0x80070057)

    The logfile mentions the image being corrupted:

    1. 01:25:41.320265 createImport ERROR [COM]: aRC=VBOX_E_FILE_ERROR (0x80bb0004) aIID={ad47ad09-787b-44ab-b343-a082a3f2dfb1} aComponent={MediumWrap} aText={Could not create the imported medium 'C:\Users\Alex\VirtualBox VMs\F_S_Development_Machine-Fedora_27_V1.6\F_S_Development_Machine-Fedora_27_V1.6-disk001.vdi'.
    2. 01:25:41.320278 createImport VMDK: Compressed image is corrupted 'C:\Users\Alex\F_S_Development_Machine-Fedora_27_V1.6-disk001.vmdk' (VERR_ZIP_CORRUPTED)}, preserve=false aResultDetail=-22001

    I downloaded the .ova four times now to rule out other issues, but they keep coming up as corrupted. Two different images i tested worked perfectly on the first attempt.

    Has anyone had similar experiences? Is there a solution or work-around? Could the file be corrupted as provided online?

    Thanks for you help!

    I have 3 PicoCore MX8MP Starter Kits which i will be using for experiments with distributed databases.

    So far i have gotten two setups to work: a router-managed network to which the boards then connect, as well as using one of the boards as access point and connecting the others to the AP.

    The most realistic scenario, though, would be an ad-hoc network, which i would like to set up. iw list shows the following supported interfaces, with IBSS (ad-hoc) missing:

    1. Supported interface modes:
    2. * managed
    3. * AP
    4. * P2P-client
    5. * P2P-GO

    Is there any way to add this functionality? Is this a driver/configuration or hardware issue? Your help is much appreciated.