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Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

  • 1.  Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Sep 18, 2020 05:34 AM

    I just upgraded to VMWare Workstation 16.  The program install without any problems.  However, when I try to load a virtual machine, I get the following error Messages:

    1. 

    Could not open /dev/vmmon: No such file or directory.

    Please make sure that the kernel module `vmmon' is loaded.

    2. 

    Failed to initialize monitor device.

    3.

    Unable to change virtual machine power state: Transport (VMDB) error -14: Pipe connection has been broken.

    I did a search on the Internet and found the following tutorial to fix this problem:  VMware Knowledge Base

    The problem is that the tutorial does not work on openSUSE Leap 15.2 because there seems not to exist a 'linux-headers' command. 

    Does anyone know a possible fix that works on openSUSE Leap 15.2?



  • 2.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Sep 18, 2020 06:47 AM

    The command is sign-file not linux-headers

    I am not familar with OpenSUSE and I am an Ubuntu noob.

    Suggest you try the sign-file command and maybe it will suggest the zypper installation required.



  • 3.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Sep 18, 2020 05:02 PM

    I tried the sign-file command and this is what I got:

    % sign-file

    If 'sign-file' is not a typo you can use command-not-found to lookup the package that contains it, like this:

        cnf sign-file

    I tried running the 'cnf sign-file" command and this was the result:

    % cnf sign-file

    sign-file: command not found      

    Any ideas?



  • 4.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Sep 18, 2020 05:29 PM

    I was able to locate the 'sign-file' command.  It is located in the following directory:  /usr/src/linux-5.3.18-lp152.41-obj/x86_64/default/scripts

    I entered the following commands:

    # /usr/src/linux-5.3.18-lp152.41-obj/x86_64/default/scripts/sign-file sha256 ./MOK.priv ./MOK.der $(modinfo -n vmmon)

    # /usr/src/linux-5.3.18-lp152.41-obj/x86_64/default/scripts/sign-file sha256 ./MOK.priv ./MOK.der $(modinfo -n vmnet)

    # mokutil --import MOK.der

    I rebooted my computer and had to authorize the modification to the kernel.  However, it still has the same problem.  Is there anything else that I need to do?

    Again thanks for all your help on this issue.



  • 5.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted May 19, 2021 07:08 AM

    I have tried the suggestion on https://kb.vmware.com/s/article/2146460 but with no success.

    My system:- Operating System: openSUSE Leap 15.2
    KDE Plasma Version: 5.18.6
    KDE Frameworks Version: 5.71.0
    Qt Version: 5.12.7
    Kernel Version: 5.3.18-lp152.75-default
    OS Type: 64-bit
    Processors: 16 × AMD Ryzen 7 2700X Eight-Core Processor
    Memory: 15.6 GiB of RAM

    System is dual boot with Windows 10

    Secure boot is enabled.

    ( $ mokutil --sb-state
    SecureBoot enabled

    )

    Everything was working perfectly on this same hardware when running SuSE leap 15.1 with VmWare Pro 14 (although though without secure boot which is wanted for an alternative boot of Windows 10 - I did a clean install of SuSE leap 15.2 and dual boot Windows 10)

    I then installed VmWare 16 following suggestions on https://kb.vmware.com/s/article/2146460

    # Created signing info
    openssl req -new -x509 -newkey rsa:2048 -keyout MokKey.priv -outform DER -out MokKey.der -nodes -days 36500 -subj "/CN=VMware/"

    # Signed vmmon and vmnet as per descriptions:-
    /usr/src/linux-5.3.18-lp152.75-obj/x86_64/default/scripts/sign-file sha256 ./MokKey.priv ./MokKey.der $(modinfo -n vmmon)
    /usr/src/linux-5.3.18-lp152.75-obj/x86_64/default/scripts/sign-file sha256 ./MokKey.priv ./MokKey.der $(modinfo -n vmnet)

    mokutil --import MokKey.der

    # Shut down and rebooted Suse system, Answered the "Enroll MOK", Confirmed and entered password from previous step then rebooted.

    VmWare starts OK but when I try a Resume I always get "Could not open /dev/vmmon"

    I am new to secure boot complexities. Here is what I have seen so far:-

    $ mokutil --list-enrolled |grep ubject
    Subject: CN=openSUSE Secure Boot CA, C=DE, L=Nuremberg, O=openSUSE Project/emailAddress=build@opensuse.org
    Subject Public Key Info:
    X509v3 Subject Key Identifier:
    Subject: CN=Local build for nvidia-gfxG05 460.73.01 on 2021-05-11
    Subject Public Key Info:
    X509v3 Subject Key Identifier:
    Subject: CN=VMware
    Subject Public Key Info:
    X509v3 Subject Key Identifier:
    Subject: CN=Local build for nvidia-gfxG05 460.80 on 2021-05-16
    Subject Public Key Info:
    X509v3 Subject Key Identifier:
    Subject: CN=VMware
    Subject Public Key Info:
    X509v3 Subject Key Identifier:
    Subject: CN=VMware
    Subject Public Key Info:
    X509v3 Subject Key Identifier:

    # modinfo vmmon
    filename: /lib/modules/5.3.18-lp152.75-default/misc/vmmon.ko
    supported: external
    license: GPL v2
    description: VMware Virtual Machine Monitor.
    author: VMware, Inc.
    suserelease: openSUSE Leap 15.2
    srcversion: 4075357EA80969BA3F710D2
    depends:
    retpoline: Y
    name: vmmon
    vermagic: 5.3.18-lp152.75-default SMP mod_unload modversions
    sig_id: PKCS#7
    signer: VMware
    sig_key: 30:11:31:0F:30:0D:06:03:55:04:03:0C:06:56:4D:77:61:72:65:02:
    14:4C:FC:B4:5A:56:F1:64:C0:50:A8:E6:FD:1E:7B:E5:54:82:B1:59:
    4D
    sig_hashalgo: sha256
    signature: 2D:F2:8B:F0:62:56:73:3B:7D:4F:BC:0B:BE:93:7A:8D:9F:CF:3F:C8:
    16:5B:A8:3E:C2:54:CF:F1:6A:AC:C6:B5:C6:52:B9:1B:4E:B8:23:98:
    2C:74:E8:73:75:EC:B1:C3:61:C3:4C:20:1F:BB:DC:04:B2:71:1F:44:
    5C:2E:75:1A:77:BC:E5:E7:7D:AE:F2:F9:21:FE:AB:AB:D8:02:74:C8:
    6F:7F:25:EE:B7:A9:2A:A7:81:27:D7:BD:1D:3D:BE:99:EF:73:B1:35:
    A5:4B:27:B4:C5:57:6E:17:E8:A8:67:51:4A:36:66:65:2F:AD:AE:5F:
    41:EB:9B:69:5B:3A:D6:91:3E:08:0A:82:C7:0A:BA:7B:A4:C9:19:07:
    08:8A:A8:FB:19:94:5F:9F:ED:13:CE:05:63:ED:3E:9C:5F:EA:1C:E6:
    5A:B4:C8:E6:DD:79:A4:6B:22:C9:E2:C1:5B:78:FE:B4:2F:06:23:8C:
    A2:19:DF:63:ED:5D:E8:E4:3A:B7:2F:08:09:22:03:DD:C8:84:CE:FF:
    E6:8A:40:62:B4:B6:64:10:63:E5:25:99:19:8A:C3:85:C7:6A:1B:F9:
    49:DF:39:29:2B:F3:A6:1D:43:9C:76:AD:F5:15:5E:7D:5C:EA:FC:08:
    58:33:07:88:2F:A9:A5:B0:95:D1:19:95:B8:69:A6:B1


    Root@huena:/Data/Software/SuSE/Addons/VmWare>modinfo vmnet
    filename: /lib/modules/5.3.18-lp152.75-default/misc/vmnet.ko
    supported: external
    license: GPL v2
    description: VMware Virtual Networking Driver.
    author: VMware, Inc.
    suserelease: openSUSE Leap 15.2
    srcversion: 29F7924E33074A865934EE3
    depends:
    retpoline: Y
    name: vmnet
    vermagic: 5.3.18-lp152.75-default SMP mod_unload modversions
    sig_id: PKCS#7
    signer: VMware
    sig_key: 30:11:31:0F:30:0D:06:03:55:04:03:0C:06:56:4D:77:61:72:65:02:
    14:4C:FC:B4:5A:56:F1:64:C0:50:A8:E6:FD:1E:7B:E5:54:82:B1:59:
    4D
    sig_hashalgo: sha256
    signature: 6B:F0:5E:20:BB:0E:1C:11:16:26:99:22:F8:C5:ED:88:72:F2:CE:88:
    A9:A0:C3:63:5E:D6:06:50:B3:1C:F7:31:05:D8:AC:CD:D0:9B:CC:5E:
    E3:54:84:3F:00:E3:30:0C:8F:DA:FC:B7:C1:85:EF:A4:8D:43:05:50:
    C0:DC:F3:06:F8:6D:42:E0:42:B5:07:3C:79:26:E1:07:6A:E6:C5:7F:
    53:E2:01:A1:6F:76:30:6E:CC:E9:71:BD:77:2F:C6:E6:AE:D8:1A:41:
    65:93:11:34:D6:D3:D7:20:76:3E:5B:B6:A8:2E:74:D0:24:C7:4D:52:
    CC:52:FE:68:3A:33:78:02:B0:5F:93:C6:41:7B:73:2D:7A:1C:4B:10:
    91:70:DC:85:2E:06:15:6E:3E:3B:24:E9:B1:F8:00:6F:C7:89:7E:A1:
    6E:79:F2:FA:2D:19:4C:FA:D9:CD:BB:00:B4:7C:93:7D:E9:3D:23:80:
    B6:B5:35:D1:DD:92:17:B3:8E:E1:D8:DB:A3:D5:A2:55:A3:D2:8F:B3:
    46:C1:7E:8D:1B:40:2F:FC:B7:3B:50:F1:15:78:93:88:3F:87:DA:F7:
    FF:7B:92:02:50:2F:03:AB:9A:52:41:63:3B:8A:E8:01:C9:45:89:CF:
    F5:EE:64:49:A8:3E:E8:61:8A:86:CE:7C:F7:7B:DF:3A
    parm: vnet_max_qlen:Maximum queue length of the vmnet, default is 1024, maximum is 1024 (uint)

    Would be grateful for info on how to get VmWare back into a usable state again.



  • 6.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Sep 14, 2021 09:37 PM

    Any luck to make it work? I'm stuck too.



  • 7.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Oct 26, 2021 07:06 AM

    This guy's video on solving this issue works on Opensuse 15.3, and VMware Workstation 16 Player Version 16.2.0 build-18760230

    https://www.youtube.com/watch?v=nKPALgwyDG4

    Just make sure you change the comands to the version of workstation you are using

     

    Good luck



  • 8.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Oct 27, 2021 06:48 AM

    Ok so the above fix I posted yesterday works to start and run your VM. However after restarting your host machine the error comes up again and the above steps have to be repeated to run the VM.

    Anybody know how to make the solution permanent?

    For reference: 

    Host is Opensuse 15.3 Guest is Windows 7

    The steps taken as follows:

    wget https://github.com/mkubecek/vmware-host-modules/archive/workstation-16.2.0.tar.gz

    tar -xzf workstation-16.2.0.tar.gz

    cd vmware-host-modules-workstation-16.2.0

    tar -cf vmmon.tar vmmon-only

    sudo cp -v vmmon.tar vmnet.tar /usr/lib/vmware/modules/source/

    sudo vmware-modconfig --console --install-all

    exit



  • 9.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Dec 14, 2021 09:13 PM

    Maybe this helps: sudo /etc/init.d/vmware start:

    sudo /etc/init.d/vmware start
    [sudo] password for root:  
    Starting VMware services:
      Virtual machine monitor                                             done
      Virtual machine communication interface                             done
      VM communication interface socket family                            done
      Virtual ethernet                                                    done
      VMware Authentication Daemon                                        done
      Shared Memory Available                                             done

    If you place it at startup then you don't have to run it manually.



  • 10.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Feb 23, 2022 05:01 PM

    Hello to everybody, I have same problem, but when I try:

    # /etc/init.d/vmware restart
    Stopping VMware services:
    VMware Authentication Daemon done
    Virtual machine monitor done
    Starting VMware services:
    Virtual machine monitor failed
    Virtual machine communication interface done
    VM communication interface socket family done
    Virtual ethernet failed
    VMware Authentication Daemon done

     

    Anyone could solve it?

    I followed  https://kb.vmware.com/s/article/2146460 but it did not help

     

    Thanks beforehand, Francisco.

     



  • 11.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Aug 18, 2022 02:19 PM

    same exact issue...

    In addition, when i try to run the sign-file, i am getting the following error:

     sudo /usr/src/linux-5.14.21-150400.24.18-obj/x86_64/default/scripts/sign-file  sha256 ./MOK.priv ./MOK.der $(modinfo -n vmmon)

    modinfo: command not found

    [sudo] password for root: 

    Usage: scripts/sign-file [-dp] <hash algo> <key> <x509> <module> [<dest>]

           scripts/sign-file -s <raw sig> <hash algo> <x509> <module> [<dest>]

    i am running suse 15.4 and vmplayer 16.2.4

    I had it running with redhat 9 and kernel 5.14 (note: to get the patch to work, you have to modify the netif.c file under vmmnet).

     

    Bob

     



  • 12.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Aug 18, 2022 02:36 PM

     

     

     

    in my opensuse 15.4 I did:

    sudo openssl req -new -x509 -newkey rsa:2048 -keyout vmware.priv -outform DER -out vmware.der -nodes -days 36500 -subj "/CN=VMware/" -addext "extendedKeyUsage=codeSigning"
    sudo /lib/modules/$(uname -r)/build/scripts/sign-file sha256 ./vmware.priv ./vmware.der $(/sbin/modinfo -n vmmon)
    sudo /lib/modules/$(uname -r)/build/scripts/sign-file sha256 ./vmware.priv ./vmware.der $(/sbin/modinfo -n vmnet)
    sudo mokutil --import vmware.der

     

    restarted and enrolled modules in uefi bios automatically after confirming

    launched vmware and worked!



  • 13.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Aug 18, 2022 03:48 PM

    ok,,, so little joy....

    followed you instructions..  

    No Joy

    Manually started vmware services:

    sudo /etc/init.d/vmware start

    Everything loaded--> VM started...  -- great joy...

    now,  what do i need to do so that vmware services start automatically?  I do not have a rc.d

    ?? systemctl vmware enable???

    thank you,

    Bob

     



  • 14.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Mar 19, 2024 03:40 PM

    Thank you so much  elNicolo !!! worked for me in OpenSUSE  15 SP5 EFI SECURE BOOT :

    -------------------------------------------------

    OPENSUSE 15 SP5:

    sudo openssl req -new -x509 -newkey rsa:2048 -keyout vmware.priv -outform DER -out vmware.der -nodes -days 36500 -subj "/CN=VMware/" -addext "extendedKeyUsage=codeSigning"


    sudo /lib/modules/$(uname -r)/build/scripts/sign-file sha256 ./vmware.priv ./vmware.der $(/sbin/modinfo -n vmmon)


    sudo /lib/modules/$(uname -r)/build/scripts/sign-file sha256 ./vmware.priv ./vmware.der $(/sbin/modinfo -n vmnet)


    sudo mokutil --import vmware.der

    password

    sudo reboot

     

    Darkprincex_1-1710863206531.png

    YES > password > REBOOT

     

     

     

     



  • 15.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Mar 30, 2024 01:30 AM

    Worked for me, thanks a lot!
    Version: 17.5.0



  • 16.  RE: Workstation 16 "Could not open /dev/vmmon" on OpenSUSE Leap 15.2 using secure boot

    Posted Jul 01, 2025 03:08 PM
    Edited by RobRawson Jul 01, 2025 03:12 PM

    I tore my hair out on this for 9 months. I got through the cert minting and signing and all but had that annoying issue that every time I booted I needed to recompile the VMxxx kernel modules. Eventually I created a script and put it in sudo so I could run it as my login user which would run the commands to make and sign the file.

    But I never gave up. Nothing worked until I stumbled upon the answer in an unrelated place:

    • zypper in systemd-sysvcompat
    • zypper in insserv-compat (not certain this was necessary)

    Installing this module finally allowed me to boot vmware in peace and harmony. My blood pressure is lower and I sleep better now.