etcher: Error when creating Linux boot images.

I have the same issue on the Latest MacOS Catalina 10.15. The solution is to run balenaEtcher.app/Contents/MacOS/balenaEtcher as sudo.

Have you tried this solution? #2833 https://github.com/balena-io/etcher/issues/2833#issuecomment-505145234 This lazy steps work for me.

Workaround: Moving your image inside balenaEtcher.app seems to do the trick. You can do this by selecting “Show Package Contents” on balenaEtcher.app and dragging your image inside of it. Then you can select your image as usual from Finder and the flashing will go ahead. Make sure you select the image inside balenaEtcher.app

As of March 2020, this is still not fixed in Linux. It asks for the root password, then fails.

Apparently the issue with Catalina is already fixed in the latest versions of Etcher #2833 (comment) No need for the sudo workaround any more.

As of Sept 16, 2020, the latest release is still 1.5.109 (from the pre-made installer) for macOS and I’m on Catalina. I tried sudo opening it and still got the “Something went wrong. If it is a compressed image, please check that the archive is not corrupted” error.

The solution would be this comment in issue #2833

For a detailed step-by-step:

First you right click on Etcher to select “Show Package Content”

Then you drag and drop your iso image inside

Go back to Etcher and select this iso image from within the Etcher package folder

…et voila 😃

To add further details for those landing here (likely Mac users who have upgraded to Catalina), run this in your terminal

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

then you will be prompted to grant permission, then when you open Balena it should work.

So I am now using the newest edition of Balena Etcher 1.5.51 and everything appears to be back to normal. Thank you for all your help and attention on this matter!

In case it helps anyone with V1.5.109 on OS/X Big Sur v11.0.1 the solution that worked for me was to (after installing Etcher into Applications).

sudo su -
cd /Applications/balenaEtcher.app/Contents/MacOS/
./balenaEtcher

Then choose the downloaded ISO from my Downloads directory (/Users/$USER/Downloads) and flash that.

As documented above for Catalina.

Install packege repository https://github.com/balena-io/etcher#debian-and-ubuntu-based-package-repository-gnulinux-x86x64 for linux

This problem still exists on macOS Big Sur and 1.5.111 version of Etcher. However, either copying the image inside balenaEtcher.app/Contents/ or running it with sudo as a workaround works without any issue.

Apparently the issue with Catalina is already fixed in the latest versions of Etcher https://github.com/balena-io/etcher/issues/2833#issuecomment-550109402 No need for the sudo workaround any more.

For issues with Etcher on macOS Catalina, see #2833

more info- I was able to get this to work with a different ISO, and after updating Etcher to 1.5.51 and allowing Etcher full access in System preferences/ Security & Privacy. Sorry I don’t know if it was the ISO that was the problem Worked- 2018-03-13-raspbian-stretch.zip Did not work- 2019-04-11-rpd-x86-stretch.iso

I may have more time to diagnose tomorrow. Also note one of these was compressed, the other not…