Apple Event: May 7th at 7 am PT
Every ISO i attempt to "Burn to Disk Image" using finder (under Catalina) fails with the following message:
Could not burn "whaver.iso". The disk image is invalid.
For what it's worth, the ISO is a valid disk image, but Catalina doesn't seem to understand that.
How is this supposed to work?
It does work, but for some reason the process has become very unntuitive.
Use the finder and double click on the iso file to mount it.
From the file menu within the finder you will find an option to burn. Select it.
I'm a very lazy person and I try not to use the terminal so much to change the OS. Try using the free UNetbootin app to mount or burn to CD/USBstick.
"Next, download and launch the UNetbottin utility. Select the “Diskimage” radio button, click “…” to select a bootable ISO image."
and just follow the instructions from there.
"hdiutil burn whatever.iso"
Yes- I found that this solution did work for non-bootable CDs/ DVDs.
However, I was trying to create a bootable media, actually a Linux installer, and I found that hdiutil did not write the initial boot tracks. Thus, the resultant DVD would not boot, but the rest of the data on it was ok.
I have not yet tried Firewall0010's solution above. Hopefully, it does write the boot tracks!
Please rectify this, Apple!
It is a sad day when I had to reside to MS Windows to simply write a bootable DVD !!
I would love to have the answer to this issue. I almost thought it was only me while researching the problem. If you have found the answer or workaround please share
If your iso. file won't mount then you may have another issue and i would recommend reinstalling your OS.
Doesn't work for me. I can mount the ISO no problem. I can play it from VLC, too. But when I select the Burn option the dialogue box never opens and nothing burns.
To think I had to use Windows 10 to burn a DVD.. what on earth has Apple come to....
For me.. when I double click on the ISO image (in Finder), I receive the following message:
No mountable file systems
Seems pretty terminal to me...
That’s exactly what I was trying to do. I can’t even open images I’ve downloaded months/years ago. They won’t mount in diskutil either.
The issue is a bug in Catalina. There are several of us seeing this same message.
You mean a bug in Catalina, right? In Mojave it worked.
Yes, Catalina.
A few of us have submitted feedback to Apple using the Feedback Assistant to let them know of the bug.
This worked for me! Thanks for your help.
Apple software has gotten really buggy lately!
I have used a 3rd party app for mounting Linux file Sustems. Seamless.
This worked for me, Thanks!
This worked for me. Thanks so much! I thought Compressor was failing to write the blu ray disk image because of Catalina.
how to burn iso to cd under Catalina with Finder???
