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[HowTo][OPO]Fix MTP driver permissions

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flo hacks
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    • F Offline
      flohack
      last edited by flohack 5 Apr 2018, 15:36 3 Mar 2018, 22:21

      Motivation
      Currently MTP access is broken on the OPO and users cannot access their files easily. While a fix has been pushed for 16.04 (OTA-4) already, current vivid needs to be fixed manually.

      How
      Warning: This fix needs to be applied carefully, it can damage your system files! You need to type those commands on your PC in a shell window, not on the phone itself:

      1. Reboot your phone into recovery: adb reboot recovery
      2. Open an adb shell into your phone: adb shell
      3. Create a temporary directory /a, and loop-mount the system image into it: mkdir /a && mount /data/system.img /a
      4. Create a temporary directory /b, and loop-mount the android image into it: mkdir /b && mount /a/var/lib/lxc/android/system.img /b
      5. exit adb shell by pressing CTRL-D
      6. Transfer the rules file to your PC: adb pull /b/ubuntu/usr/lib/lxc-android-config/70-bacon.rules
      7. edit the file with your favourite text editor and change the following: from ACTION=="add", KERNEL=="mtp_usb", OWNER="root", GROUP="mtp", MODE="0660" to ACTION=="add", KERNEL=="mtp_usb", OWNER="root", GROUP="plugdev", MODE="0660" (Note the changed group)
      8. Push back the changed file: adb push 70-bacon.rules /b/ubuntu/usr/lib/lxc-android-config
      9. To be safe, re-enter the adb shell: adb shell
      10. Force changes to disk: sync && umount /b && umount -l /a && sync
      11. exit adb shell by pressing CTRL-D
      12. reboot device and hope its working: adb reboot

      Hope that works for you!

      BR Florian

      My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

      A 1 Reply Last reply 9 Mar 2018, 18:37 Reply Quote 4
      • T Offline
        trainailleur
        last edited by trainailleur 3 Apr 2018, 02:15 4 Mar 2018, 02:15

        Florian, this works well. Thank you for the fix.

        /a would not umount, giving me the error umount: can't umount /a: Device or resource busy I couldn't see easily what was keeping it busy, so I just tossed umount the -l (lazy) flag, and it worked fine.

        I also had to issue a CTRL-D between steps 10 and 11.

        After reboot, MTP worked fine.

        Thanks again!

        Stephen

        F 1 Reply Last reply 4 Mar 2018, 08:36 Reply Quote 0
        • F Offline
          flohack @trainailleur
          last edited by 4 Mar 2018, 08:36

          @trainailleur Good I updated my guide!

          My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

          1 Reply Last reply Reply Quote 1
          • A Offline
            andybleaden
            last edited by 4 Mar 2018, 17:41

            Well this was really really easy to do.

            I take my hat off to you Florian for taking the time to sort this guide out and write it up.

            I followed it and ...yes it is idiot proof!

            It worked.

            The only change I would make is to insert the word "text" in 7 between favourite and editor

            Now my OPO rebooted and mounted automatically

            Yippeeeee

            I got my Nexus 4 then 5 then FP2 then one plus cooking on #UBUNTU via @ubports and have run it on Op3T Op6t OP5T Pinephone/Pro Pine Tab and Pinebook Pro and my favourite OnePlus One.

            1 Reply Last reply Reply Quote 1
            • R Offline
              rocky58
              last edited by 4 Mar 2018, 19:32

              After typed adb reboot recovery, I obtain this message:

              error: device offline

              Known OPO error never resolved

              1 Reply Last reply Reply Quote 0
              • G Offline
                GT
                last edited by 4 Mar 2018, 20:04

                Thanks @Flohack, your HowTo worked perfectly.

                Step 1 did not work on my OPO, so I had to put it manually into recovery mode (Powerbutton + volume down for a few seconds (while it is switched of)). Then steps 2 - 12 went smoothly. Thanks for the HowTo!!!

                @rocky58: If adb reports "device offline", then it sometimes helps to simply wait for a few seconds or to unplug and plug in again the USB cable. This worked for me.

                1 Reply Last reply Reply Quote 1
                • R Offline
                  rocky58
                  last edited by 4 Mar 2018, 20:30

                  Okkkkkkkkey... all worked fine. At last I can mount my OPO using my Ubuntu PC.
                  Thanks @Flohack for the job and also @GT for the suggest.

                  1 Reply Last reply Reply Quote 1
                  • A Offline
                    advocatux @flohack
                    last edited by 9 Mar 2018, 18:37

                    @flohack helping a user in the UB Welcome & Install Group he thought he have to type all the commands on the phone screen. So maybe is a good idea to add the step Connect the PC or laptop to the phone using a USB cable or something like that.

                    Thank you for your guide!

                    F 1 Reply Last reply 11 Mar 2018, 08:21 Reply Quote 0
                    • F Offline
                      flohack @advocatux
                      last edited by 11 Mar 2018, 08:21

                      @advocatux OK thanks added a hint πŸ™‚

                      My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

                      1 Reply Last reply Reply Quote 0
                      • B Offline
                        BlueKenny
                        last edited by 1 May 2018, 13:10

                        Thank you for this fix πŸ™‚

                        Fairphone 5
                        PinePhone
                        Nexus 7 Flo

                        1 Reply Last reply Reply Quote 0
                        • A Offline
                          advocatux
                          last edited by 4 May 2018, 15:20

                          @Flohack this thread needs the "FLO HACKS" tag to find it easier.

                          F 1 Reply Last reply 4 May 2018, 15:36 Reply Quote 0
                          • F Offline
                            flohack @advocatux
                            last edited by 4 May 2018, 15:36

                            @advocatux Done xD

                            My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

                            1 Reply Last reply Reply Quote 1
                            • ? Offline
                              A Former User
                              last edited by A Former User 13 May 2018, 09:00

                              THX Flo @Flohack ! that worked like a charme !!
                              I hope to get some more knowledge about that fancy OPO with this keen support !
                              GREATGREATGREAT πŸ˜‰

                              1 Reply Last reply Reply Quote 0
                              • ? Offline
                                A Former User
                                last edited by 13 May 2018, 10:34

                                @Flohack please take the Note, I just learned, that you have to install the

                                [[HowTo] [OPO] Fix MTP driver permissions](link url)

                                before attemptig to update/upgrade with the ubports-installer , because this is mandatory.
                                the installer will not be successfull whatsoever before taking care for that solution at the
                                affected Devices !!

                                A F 2 Replies Last reply 13 May 2018, 10:44 Reply Quote 0
                                • A Offline
                                  advocatux @Guest
                                  last edited by 13 May 2018, 10:44

                                  @pet_hh don't leave us hanging! What do we need to install? ^_^

                                  1 Reply Last reply Reply Quote 0
                                  • F Offline
                                    flohack @Guest
                                    last edited by 16 May 2018, 14:18

                                    @pet_hh Hmm this is strange, adb should work, only MTP would be broken. We shall test!

                                    My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

                                    1 Reply Last reply Reply Quote 0
                                    • N Offline
                                      nutzernam
                                      last edited by 21 May 2018, 11:42

                                      I have a problem with this HowTo:
                                      When i start "abd reboot recovery" i come to the Recovery Screen.
                                      But what next?
                                      Choose one of the options? Which one? When i try to access the phone by "adb shell" the terminal shows "~ # " and not "...@phablet..."
                                      Since there is a warning ( it can damage your system files! ) i want to be sure what to do next:
                                      Choose an option or continue in the terminal?

                                      F A 3 Replies Last reply 21 May 2018, 11:56 Reply Quote 0
                                      • F Offline
                                        flohack @nutzernam
                                        last edited by 21 May 2018, 11:56

                                        @nutzernam Dont choose any options in recovery. Just let it sit there and type adb shell πŸ˜‰

                                        My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

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                                        • F Offline
                                          flohack @nutzernam
                                          last edited by 21 May 2018, 11:57

                                          @nutzernam And yes there is no phablet user, you are in recovery and are root user. Take care πŸ˜‰

                                          My languages: πŸ‡¦πŸ‡Ή πŸ‡©πŸ‡ͺ πŸ‡¬πŸ‡§ πŸ‡ΊπŸ‡Έ

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                                          • A Offline
                                            advocatux @nutzernam
                                            last edited by advocatux 21 May 2018, 11:59

                                            @nutzernam when your phone is on that recovery screen you don't have to select anything there, just use your terminal.

                                            When i try to access the phone by "adb shell" the terminal shows "~ # " and not "...@phablet..."

                                            With your phone connected, type first adb devices in your PC to see if adb recognizes your OPO. That command also starts the needed server if it isn't running already. If it does, follow the instructions carefully. If it doesn't maybe there's a problem with the usb cable, or the usb port you're using, etc

                                            Edit: @Flohack was quicker πŸ™‚

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