I also have this issue but with flash drives instead. Log below:
13:11:13.661 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Download the React DevTools for a better development experience: https://fb.me/react-devtools
You might need to use a local HTTP server (instead of file://): https://fb.me/react-devtools-faq
13:11:14.443 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 _____ _ _
| ___| | | |
| |__ | |_ ___| |__ ___ _ __
| __|| __/ __| '_ \ / _ \ '__|
| |___| || (__| | | | __/ |
\____/ \__\___|_| |_|\___|_|
Interested in joining the Etcher team?
Drop us a line at join+etcher@balena.io
Version = 1.5.47, Type = appimage
13:11:14.444 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:14 GMT-0400 (EDT) Application start ({"packageType":"appimage","version":"1.5.47","applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","sample":0.1})
13:11:16.649 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:16 GMT-0400 (EDT) SafeWebview loaded ({"event":{"fromCache":false,"headers":{"Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8","Upgrade-Insecure-Requests":"1","User-Agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) balena-etcher-electron/1.5.47 Chrome/66.0.3359.181 Electron/3.1.9 Safari/537.36"},"id":11,"method":"GET","referrer":"","resourceType":"mainFrame","responseHeaders":{"Accept-Ranges":["bytes"],"Cache-Control":["public, max-age=0"],"Connection":["keep-alive"],"Content-Encoding":["gzip"],"Content-Type":["text/html; charset=UTF-8"],"Date":["Wed, 12 Jun 2019 17:11:16 GMT"],"Etag":["W/\"3a720-16b228bf8d8\""],"Last-Modified":["Tue, 04 Jun 2019 12:52:07 GMT"],"Server":["Cowboy"],"Transfer-Encoding":["chunked"],"Vary":["Accept-Encoding"],"Via":["1.1 vegur, 1.1 vegur"]},"statusCode":200,"statusLine":"HTTP/1.1 200 OK","timestamp":1560359476640.686,"url":"https://www.balena.io/etcher/success-banner/?etcher-version=1.5.47&api-version=2&optOutAnalytics=false"},"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:11:53.604 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:53 GMT-0400 (EDT) Open image selector ({"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:11:58.062 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:58 GMT-0400 (EDT) Select image ({"image":{"size":736100352,"name":"pmagic_2019_05_30.iso","hasMBR":true,"partitions":[{"offset":272384,"size":3379200,"type":239,"index":1}],"path":"/home/bacenote/Downloads/pmagic_2019_05_30.iso","extension":"iso","logo":false,"blockMap":false},"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:11:59.402 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:59 GMT-0400 (EDT) Flashing 0 devices, 0% at null MB/s (total null MB/s) eta in undefineds with 0 failed devices
13:11:59.405 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:59 GMT-0400 (EDT) Flash ({"image":"/home/bacenote/Downloads/pmagic_2019_05_30.iso","drives":[{"size":7803174912,"isVirtual":false,"enumerator":"lsblk:json","logicalBlockSize":512,"raw":"/dev/sdb","error":null,"isReadOnly":false,"displayName":"/dev/sdb","blockSize":512,"isSCSI":false,"isRemovable":true,"device":"/dev/sdb","busVersion":null,"isSystem":false,"busType":"USB","isCard":null,"isUSB":true,"devicePath":"/dev/disk/by-path/pci-0000:00:14.0-usb-0:2:1.0-scsi-0:0:0:0","mountpoints":[{"path":"/media/bacenote/Linux Mint 19.1 Cinnamon 64-bit","label":"Linux Mint 19.1 Cinnamon 64-bit"}],"description":"Linux Mint 19.1 Cinnamon 64-bit USB Flash Memory (Linux Mint 19.1 Cinnamon 64-bit)","isUAS":null}],"driveCount":1,"uuid":"3085509d-32f4-4df6-b03b-35e965b6d708","status":"started","flashInstanceUuid":"3085509d-32f4-4df6-b03b-35e965b6d708","unmountOnSuccess":true,"validateWriteOnSuccess":true,"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:11:59.414 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Elevating command: /run/user/1000/appimagelauncherfs/0000.AppImage -e require(`${process.env.APPDIR}/resources/app.asar`)
13:11:59.833 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:59 GMT-0400 (EDT) SafeWebview loaded ({"event":{"fromCache":false,"headers":{"Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8","Upgrade-Insecure-Requests":"1","User-Agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) balena-etcher-electron/1.5.47 Chrome/66.0.3359.181 Electron/3.1.9 Safari/537.36"},"id":209,"method":"GET","referrer":"","resourceType":"mainFrame","responseHeaders":{"access-control-allow-origin":["*"],"age":["367"],"cache-control":["max-age=600"],"cf-ray":["4e5d72766d9d993b-LAX"],"content-encoding":["br"],"content-type":["text/html; charset=utf-8"],"date":["Wed, 12 Jun 2019 17:11:59 GMT"],"expect-ct":["max-age=604800, report-uri=\"https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct\""],"expires":["Wed, 12 Jun 2019 16:43:01 GMT"],"last-modified":["Tue, 11 Jun 2019 16:14:07 GMT"],"server":["cloudflare"],"status":["200"],"vary":["Accept-Encoding"],"via":["1.1 varnish"],"x-cache":["HIT"],"x-cache-hits":["1"],"x-fastly-request-id":["297bf99e49475d92fb177be93e7e4366255b9216"],"x-github-request-id":["DFB8:40A7:15208B:16C024:5D012C96"],"x-served-by":["cache-lax8634-LAX"],"x-timer":["S1560359520.766254,VS0,VE1"]},"statusCode":200,"statusLine":"HTTP/1.1 200","timestamp":1560359519821.012,"url":"https://assets.balena.io/etcher-featured/index.html?etcher-version=1.5.47&api-version=2&optOutAnalytics=false"},"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:11:59.835 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:11:59 GMT-0400 (EDT) Flashing 0 devices, 0% at null MB/s (total null MB/s) eta in undefineds with 0 failed devices
13:12:03.365 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 error OperationalErrorcause: Error: User did not grant permission.
at /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/sudo-prompt/index.js:111:23
at ChildProcess.exithandler (child_process.js:310:5)
at ChildProcess.emit (events.js:182:13)
at maybeClose (internal/child_process.js:961:16)
at Socket.stream.socket.on (internal/child_process.js:380:11)
at Socket.emit (events.js:182:13)
at Pipe._handle.close [as _onclose] (net.js:596:12)message: "User did not grant permission."stack: "Error: User did not grant permission.↵ at /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/sudo-prompt/index.js:111:23↵ at ChildProcess.exithandler (child_process.js:310:5)↵ at ChildProcess.emit (events.js:182:13)↵ at maybeClose (internal/child_process.js:961:16)↵ at Socket.stream.socket.on (internal/child_process.js:380:11)↵ at Socket.emit (events.js:182:13)↵ at Pipe._handle.close [as _onclose] (net.js:596:12)"__proto__: constructor: ƒ Error()message: ""name: "Error"toString: ƒ toString()__proto__: ObjectisOperational: truemessage: "User did not grant permission."name: "Error"stack: "Error: User did not grant permission.↵ at /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/sudo-prompt/index.js:111:23↵ at ChildProcess.exithandler (child_process.js:310:5)↵ at ChildProcess.emit (events.js:182:13)↵ at maybeClose (internal/child_process.js:961:16)↵ at Socket.stream.socket.on (internal/child_process.js:380:11)↵ at Socket.emit (events.js:182:13)↵ at Pipe._handle.close [as _onclose] (net.js:596:12)"__proto__: Errorconstructor: ƒ OperationalError(message)constructor$: ƒ Error()__proto__: Object
13:12:03.367 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Flash results Object
13:12:03.368 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Wed Jun 12 2019 13:12:03 GMT-0400 (EDT) Elevation cancelled ({"status":"started","image":"/home/bacenote/Downloads/pmagic_2019_05_30.iso","drives":[{"size":7803174912,"isVirtual":false,"enumerator":"lsblk:json","logicalBlockSize":512,"raw":"/dev/sdb","error":null,"isReadOnly":false,"displayName":"/dev/sdb","blockSize":512,"isSCSI":false,"isRemovable":true,"device":"/dev/sdb","busVersion":null,"isSystem":false,"busType":"USB","isCard":null,"isUSB":true,"devicePath":"/dev/disk/by-path/pci-0000:00:14.0-usb-0:2:1.0-scsi-0:0:0:0","mountpoints":[{"path":"/media/bacenote/Linux Mint 19.1 Cinnamon 64-bit","label":"Linux Mint 19.1 Cinnamon 64-bit"}],"description":"Linux Mint 19.1 Cinnamon 64-bit USB Flash Memory (Linux Mint 19.1 Cinnamon 64-bit)","isUAS":null}],"driveCount":1,"uuid":"3085509d-32f4-4df6-b03b-35e965b6d708","flashInstanceUuid":"3085509d-32f4-4df6-b03b-35e965b6d708","unmountOnSuccess":true,"validateWriteOnSuccess":true,"applicationSessionUuid":"425177cf-be3e-45a1-a617-91b31cc5b705","flashingWorkflowUuid":"ef86f946-9eee-4b4a-a60d-e6612bf3edef","sample":0.1})
13:12:03.380 /tmp/.mount_balenamIeCMk/resources/app.asar/node_modules/raven-js/dist/raven.js:58 Terminating IPC server
It says i didnt grant permissions but i did, i am running Zorin OS 15 so i dont know if something changed with authentication.