I’m trying to create a bootable SD card for my Raspberry Pi. I tried using Balena Etcher to flash the ISO, but got the error “Missing Partition Table” when trying to create the media. At first I wondered if this was only an issue with the obscure ISO I had downloaded, so I didn’t do much to fix it. Then I needed to create a USB for Windows 10 to repair someone else’s computer and had the same issue. I don’t think it is an issue with the USB drive or SD card because it will give the error before I choose the drive to write to.
I am very willing to use a different program if Balena Etcher is the issue. I’m fairly new to Linux and don’t know what is available yet.
The file you downloaded should be a .img.xz file, a compressed disk image, not an ISO. You should use the manjaro-arm-flasher, I believe it is in the x86_64 repo.