Raspbian flash to micro sd card on mac fails

I have been following this guide here:

  1. I have an 8gb unlocked micro sd card inserted in a sd card adapter that’s inserted my 2015 mbp running 10.12.6.

  2. I have formatted the card using disk utility as FAT32 with masterboot record and GUID format options (tried both)

  3. I have download RASPBIAN STRETCH WITH DESKTOP AND RECOMMENDED SOFTWARE from Raspberry Pi OS – Raspberry Pi

  4. I have installed Balena Etcher 1.4.8 for mac

  5. I start the flashing process by selecting the zip file, then selecting the sd card and pressing the flash button.

  6. There is very brief <500ms waiting screen that appears and the I assume the process has finished as there is no error message, nor any feedback to the user that anything has happened.

  7. This appears in the console:

    /Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 etcher:sdk:scanner stop +45s true
    /Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Sun Nov 25 2018 17:59:35 GMT+1100 (AEDT) Flashing 0 devices, 0% at 0 MB/s (total 0 MB/s) eta in undefineds with 0 failed devices

/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Sun Nov 25 2018 17:59:35 GMT+1100 (AEDT) Flash ({“image”:“/Users/simon/RasberryPiImages/2018-11-13-raspbian-stretch-full.img”,“drives”:[“/dev/disk2”],“driveCount”:1,“uuid”:“2549528d-d152-4204-8096-3827ad55829e”,“status”:“started”,“flashInstanceUuid”:“2549528d-d152-4204-8096-3827ad55829e”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“applicationSessionUuid”:“c660036f-211d-4c8b-b21d-7323b982489a”,“flashingWorkflowUuid”:“2487bef5-1163-4048-bb2b-e841a8538817”})
/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Elevating command: /Applications/balenaEtcher.app/Contents/Frameworks/balenaEtcher Helper.app/Contents/MacOS/balenaEtcher Helper /Applications/balenaEtcher.app/Contents/Resources/app.asar
/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Flash results Object {cancelled: true}
/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Terminating IPC server
/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 Sun Nov 25 2018 17:59:36 GMT+1100 (AEDT) Elevation cancelled ({“status”:“started”,“image”:“/Users/simon/RasberryPiImages/2018-11-13-raspbian-stretch-full.img”,“drives”:[“/dev/disk2”],“driveCount”:1,“uuid”:“2549528d-d152-4204-8096-3827ad55829e”,“flashInstanceUuid”:“2549528d-d152-4204-8096-3827ad55829e”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“applicationSessionUuid”:“c660036f-211d-4c8b-b21d-7323b982489a”,“flashingWorkflowUuid”:“2487bef5-1163-4048-bb2b-e841a8538817”})
/Applications/balenaEtcher.app/Contents/Resources/app.asar/node_modules/raven-js/dist/raven.js:58 etcher:sdk:scanner start +418ms true

I repeat the entire process with the disk image (2018-11-13-raspbian-stretch-full.img) by unzipping the raspbian download.

I am unable to proceed any further.

I check the contents of the card inside Disk Utility, and conclude that nothing has been written to the card.

What am I doing wrong? It’s a bit demoralising to be stuck so early into the process.

This is realtime:

Hi @proximity , from the log you attached I see that the elevation prompt gets a denial - do you see this when you click “flash”?


No prompt to elevate permissions is triggered.

@proximity Is the Mac user an admin or a restricted access user? Secondly: do you have any kind of security software that might deny Etcher writing permissions by default, preventing it to ask for them?