# Catalina 10.15.2 and Etcher 1.5.71

**URL:** <https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989>\
**Category:** balenaEtcher\
**Created:** [January 17, 2020, 10:16pm UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989 "2020-01-17T22:16:47Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![rj17](https://avatars.discourse-cdn.com/v4/letter/r/45deac/32.png) [@rj17](https://forums.balena.io/u/rj17)\
**Post date:** [January 17, 2020, 10:16pm UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989/1 "2020-01-17T22:16:47Z")

</div>

Hi,

I’m on MacOsX Catalina 10.15.2 and Etcher 1.5.71. When I try to flash my USB to install Ubuntu, there is this message :

the writer process ended unexpectedly. Please try again, …

I try this Terminal command but it doesn’t work :

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

Thank you for your help

RJ17

---

<div class="post-metadata">

**Author:** ![garethtdavies](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/garethtdavies/32/2669_2.png) [@garethtdavies](https://forums.balena.io/u/garethtdavies)\
**Post date:** [January 17, 2020, 10:27pm UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989/2 "2020-01-17T22:27:33Z")

</div>

Hi rj17, and welcome to the forums.

To give us more information, can you paste the logs from the application? You can see them by opening the DevTools Console with cmd + opt + i.

Additionally, you could also try with another image to rule out an issue with the image itself.

---

<div class="post-metadata">

**Author:** ![rj17](https://avatars.discourse-cdn.com/v4/letter/r/45deac/32.png) [@rj17](https://forums.balena.io/u/rj17)\
**Post date:** [January 17, 2020, 10:34pm UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989/3 "2020-01-17T22:34:23Z")

</div>

Thank you for your help

> Devices: /dev/disk2  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Umount on success: true  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Validate on success: true  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Trim: false  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Fri Jan 17 2020 23:32:29 GMT+0100 (heure normale d’Europe centrale) Flash error ({“error”:{“name”:“Error”,“message”:“EPERM: operation not permitted, open ‘/dev/rdisk2’”,“stack”:“Error: EPERM: operation not permitted, open ‘/dev/rdisk2’”,“code”:“EPERM”,“syscall”:“open”,“errno”:-1},“applicationSessionUuid”:“8bebe5b1-2d05-4965-8893-5102a06b7202”,“flashingWorkflowUuid”:“5fb261ae-9e09-4d2f-8105-8ae944cf3a40”,“flashInstanceUuid”:“25c19402-6c6c-400e-af39-3789655cd594”,“image”:“/Users/rj17/Downloads/ubuntu-18.04.3-desktop-amd64.iso”,“drives”:[{“size”:8006926336,“isVirtual”:false,“enumerator”:“DiskArbitration”,“logicalBlockSize”:512,“raw”:“/dev/rdisk2”,“error”:null,“isReadOnly”:false,“displayName”:“/dev/disk2”,“blockSize”:512,“isSCSI”:false,“isRemovable”:true,“device”:“/dev/disk2”,“busVersion”:null,“isSystem”:false,“busType”:“USB”,“isCard”:false,“isUSB”:true,“devicePath”:“IODeviceTree:/PCI0@0/XHC1@14”,“mountpoints”:,“description”:“Integral Splash Pink Media”,“isUAS”:null}],“driveCount”:1,“uuid”:“25c19402-6c6c-400e-af39-3789655cd594”,“unmountOnSuccess”:true,“validateWriteOnSuccess”:true,“trim”:false,“sample”:0.1})  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Finish: 0  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Flash results {results: {…}, cancelled: false}  
> /Applications/balenaEtcher.app/Contents/Resources/app/node\_modules/raven-js/dist/raven.js:58 Terminating IPC server  
> /Applications/balenaEtcher.app/Contents/Resources/app/lib/assets/icon.png:1 GET file:///Applications/balenaEtcher.app/Contents/Resources/app/lib/assets/icon.png net::ERR\_FILE\_NOT\_FOUND

---

<div class="post-metadata">

**Author:** ![garethtdavies](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/garethtdavies/32/2669_2.png) [@garethtdavies](https://forums.balena.io/u/garethtdavies)\
**Post date:** [January 17, 2020, 10:49pm UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989/4 "2020-01-17T22:49:44Z")

</div>

Thanks for that. This looks similar to this issue [https://github.com/balena-io/etcher/issues/2833](https://github.com/balena-io/etcher/issues/2833) - could you try that workaround and see if that resolves your issue?

---

<div class="post-metadata">

**Author:** ![rj17](https://avatars.discourse-cdn.com/v4/letter/r/45deac/32.png) [@rj17](https://forums.balena.io/u/rj17)\
**Post date:** [January 18, 2020, 6:21am UTC](https://forums.balena.io/t/catalina-10-15-2-and-etcher-1-5-71/57989/6 "2020-01-18T06:21:11Z")

</div>

It works !

Under Catalina one must add the application to the security exceptions:  
Go to “ **System Preferences** ” -\> “ **Security & Privacy** ” -\> “ **Privacy** “.  
Add the application to the list of “ **Full Disk Access** “ items, and you should be good to go.  
No need to run as sudo.

Thank you so much !