Failed to Write on Mac OS Big Sur

I didn’t receive any Mac error messages. Trying to flash Ubuntu on and external drive formatted MS-FAT with GUID Partition Map. Reformatted twice and tried to refills numerous times.
13" MacBook Pro 2015 running Mac OS Big Sur
“The writer process has failed unexpectedly. Please try again, and contact the Etcher team I the problem persists”

Hi,
Since Big Sur is still in beta, there can be issues with admin privileges, can you try running the following?

sudo /Applications/balenaEtcher.app/Contents/MacOS/balenaEtcher

let me know if the problem persists.

1 Like

hmm this probly happened due to a faulty or usb drive
try using a better usb or dvd
have you checked itf it was formated mac os extended?
if you are on catalina select apfs
to do this go to launch pad utillities
disk utillity
and select your drive and format it as mac os extended
on catalina do APFS apple file system

I was trying to do a similar thing and got the same error message. I am also using a 2015 MacBook Pro on Mac OS Big Sur, and this solved it for me. Thank you.

I am getting a similar issue on an older Mac, same error message, also trying to flash Ubuntu. I tried formatting Mac OS extended (rather than FAT as per Ubuntu instructions) but no luck.

I have have tried on 2 different USB drives.

Mid-2010 Mac Mini running 10.11.6 (El Capitan).

Thanks in advance.

Hi @cle20,
You mention you run Etcher on Mid-2010 Mac Mini running 10.11.6 (El Capitan).
I understand that the error you get is “The writer process has failed unexpectedly. Please try again, and contact the Etcher team I the problem persists” and that you’ve already tried to run sudo /Applications/balenaEtcher.app/Contents/MacOS/balenaEtcher to open Etcher and didn’t work for you.

To assist you further could you please let us know :

  • The Etcher version you’re running and if this is the latest version. You can find the latest release here: https://github.com/balena-io/etcher/releases
  • Relevant logging output, if any, from DevTools, which you can open by pressing Ctrl+Shift+I or Cmd+Alt+I depending on your platform.

Thanks,
Georgia

Hi Georgia,

Thank you. I tried with the latest build with the same result. I am not able to run from the Terminal as I am having some issues with that as well.

Here are the logs:

| |__ | |_ | | ___ _ __ | || / | ’ \ / _ \ '| | || || (| | | | / | _/ ____|| ||___|| Interested in joining the Etcher team? Drop us a line at join+etcher@balena.io Version = 1.5.102, Type = dmg

gui.js:79440 Mon Jul 27 2020 16:27:46 GMT-0700 (Pacific Daylight Time) Application start ({“packageType”:“dmg”,“version”:“1.5.102”,“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Mon Jul 27 2020 16:27:54 GMT-0700 (Pacific Daylight Time) Open image selector ({“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Mon Jul 27 2020 16:27:58 GMT-0700 (Pacific Daylight Time) Select image ({“image”:{“size”:2715254784,“name”:“ubuntu-20.04-desktop-amd64.iso”,“hasMBR”:true,“partitions”:[{“offset”:2161991680,“size”:4063232,“type”:239,“index”:1}],“path”:"/Users/lenoxpod/Desktop/ubuntu-20.04-desktop-amd64.iso",“extension”:“iso”,“logo”:false,“blockMap”:false},“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Mon Jul 27 2020 16:28:03 GMT-0700 (Pacific Daylight Time) Toggle drive ({“drive”:{“size”:4089446400,“isVirtual”:false,“enumerator”:“DiskArbitration”,“logicalBlockSize”:512,“raw”:"/dev/rdisk1",“error”:null,“isReadOnly”:false,“displayName”:"/dev/disk1",“blockSize”:512,“isSCSI”:false,“isRemovable”:true,“device”:"/dev/disk1",“busVersion”:null,“isSystem”:false,“busType”:“USB”,“isCard”:false,“isUSB”:true,“devicePath”:“IODeviceTree:/PCI0@0/EHC1@4,1”,“mountpoints”:,“description”:“Generic UDISK Media”,“isUAS”:null},“previouslySelected”:false,“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Mon Jul 27 2020 16:28:05 GMT-0700 (Pacific Daylight Time) Flash ({“image”:"/Users/lenoxpod/Desktop/ubuntu-20.04-desktop-amd64.iso",“drives”:[{“size”:4089446400,“isVirtual”:false,“enumerator”:“DiskArbitration”,“logicalBlockSize”:512,“raw”:"/dev/rdisk1",“error”:null,“isReadOnly”:false,“displayName”:"/dev/disk1",“blockSize”:512,“isSCSI”:false,“isRemovable”:true,“device”:"/dev/disk1",“busVersion”:null,“isSystem”:false,“busType”:“USB”,“isCard”:false,“isUSB”:true,“devicePath”:“IODeviceTree:/PCI0@0/EHC1@4,1”,“mountpoints”:,“description”:“Generic UDISK Media”,“isUAS”:null}],“driveCount”:1,“uuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“status”:“started”,“flashInstanceUuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Elevating command: /Applications/balenaEtcher.app/Contents/Frameworks/balenaEtcher Helper (Renderer).app/Contents/MacOS/balenaEtcher Helper (Renderer) /Applications/balenaEtcher.app/Contents/Resources/app/generated/child-writer.js

gui.js:72142 Mon Jul 27 2020 16:28:06 GMT-0700 (Pacific Daylight Time) SafeWebview loaded ({“event”:{“id”:1,“url”:“https://assets.balena.io/etcher-featured/index.html?borderRight=false&darkBackground=true&etcher-version=1.5.102&api-version=2&optOutAnalytics=false",“method”:“GET”,“timestamp”:1595892486156.7322,“resourceType”:“mainFrame”,“ip”:“104.31.83.157”,“fromCache”:false,“statusLine”:"HTTP/1.1 200”,“statusCode”:200,“responseHeaders”:{“access-control-allow-origin”:["*"],“age”:[“75”],“cache-control”:[“max-age=600”],“cf-cache-status”:[“DYNAMIC”],“cf-ray”:[“5b9a22863cbae825-LAX”],“cf-request-id”:[“043433e7e70000e825d3a7e200000001”],“content-encoding”:[“br”],“content-type”:[“text/html; charset=utf-8”],“date”:[“Mon, 27 Jul 2020 23:28:06 GMT”],“expect-ct”:[“max-age=604800, report-uri=“https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct””],“expires”:[“Mon, 27 Jul 2020 16:16:26 GMT”],“last-modified”:[“Wed, 22 Jul 2020 09:24:01 GMT”],“server”:[“cloudflare”],“status”:[“200”],“vary”:[“Accept-Encoding”],“via”:[“1.1 varnish”],“x-cache”:[“HIT”],“x-cache-hits”:[“1”],“x-fastly-request-id”:[“20e479b565b766fe0560aa638eab9eb390ab30b4”],“x-github-request-id”:[“14CA:6E0F:5CBC76:73FD34:5F1EFB82”],“x-origin-cache”:[“HIT”],“x-proxy-cache”:[“MISS”],“x-served-by”:[“cache-lax8638-LAX”],“x-timer”:[“S1595892486.134344,VS0,VE1”]},“referrer”:"",“error”:“net::OK”},“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:5981 0 devices, 0% at 0.00 MB/s (total 0.00 MB/s) with 0 failed devices

gui.js:72142 Successfully connected to IPC server: etcher-server-757, socket root /var/folders/59/vzrqtm950wl04kv8hl48wt940000gp/T/

gui.js:72142 Image: /Users/lenoxpod/Desktop/ubuntu-20.04-desktop-amd64.iso

gui.js:72142 Devices: /dev/disk1

gui.js:72142 Umount on success: true

gui.js:72142 Validate on success: true

gui.js:72142 Auto blockmapping: true

gui.js:72142 Decompress first: true

gui.js:72142 Mon Jul 27 2020 16:28:11 GMT-0700 (Pacific Daylight Time) Flash error ({“image”:"/Users/lenoxpod/Desktop/ubuntu-20.04-desktop-amd64.iso",“drives”:[{“size”:4089446400,“isVirtual”:false,“enumerator”:“DiskArbitration”,“logicalBlockSize”:512,“raw”:"/dev/rdisk1",“error”:null,“isReadOnly”:false,“displayName”:"/dev/disk1",“blockSize”:512,“isSCSI”:false,“isRemovable”:true,“device”:"/dev/disk1",“busVersion”:null,“isSystem”:false,“busType”:“USB”,“isCard”:false,“isUSB”:true,“devicePath”:“IODeviceTree:/PCI0@0/EHC1@4,1”,“mountpoints”:,“description”:“Generic UDISK Media”,“isUAS”:null}],“driveCount”:1,“uuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“flashInstanceUuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“error”:{“name”:“Error”,“message”:“EACCES: permission denied, open ‘/dev/rdisk1’”,“stack”:“Error: EACCES: permission denied, open ‘/dev/rdisk1’”,“code”:“EACCES”,“syscall”:“open”,“errno”:-13},“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:72142 Finish: 0

gui.js:72142 Terminating IPC server

gui.js:72142 Flash results

  1. {results: {…}, cancelled: false}

gui.js:72142 Mon Jul 27 2020 16:28:11 GMT-0700 (Pacific Daylight Time) Write failed ({“image”:"/Users/lenoxpod/Desktop/ubuntu-20.04-desktop-amd64.iso",“drives”:[{“size”:4089446400,“isVirtual”:false,“enumerator”:“DiskArbitration”,“logicalBlockSize”:512,“raw”:"/dev/rdisk1",“error”:null,“isReadOnly”:false,“displayName”:"/dev/disk1",“blockSize”:512,“isSCSI”:false,“isRemovable”:true,“device”:"/dev/disk1",“busVersion”:null,“isSystem”:false,“busType”:“USB”,“isCard”:false,“isUSB”:true,“devicePath”:“IODeviceTree:/PCI0@0/EHC1@4,1”,“mountpoints”:,“description”:“Generic UDISK Media”,“isUAS”:null}],“driveCount”:1,“uuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“status”:“failed”,“flashInstanceUuid”:“ba568d5f-4edf-4066-a79f-f7b5f3325ba0”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“error”:{“description”:“Please try again, and contact the Etcher team if the problem persists”,“report”:false,“code”:“ECHILDDIED”},“sample”:0.1,“applicationSessionUuid”:“bb3e35f0-7a4b-4aaf-9662-2196ee066b83”,“flashingWorkflowUuid”:“569e655c-96c0-4f62-81a2-aca5095bf68b”})

gui.js:5981 0 devices, 0% at 0.00 MB/s (total 0.00 MB/s) with 0 failed devices

Solved!

Permissions issue was causing both problems it appears.