Can't mount read-only ISOs

[winterqt]

Describe the issue

When creating a VM, and the selected ISO is read-only, the VM fails to start, saying that it can't open the file. The image is by nature read-only anyways, so it doesn't make much sense to enforce that the file is writable (unless it's a QEMU thing).

Configuration

• UTM Version: 4.0.9
• macOS Version: 13.1
• Mac Chip (Intel, M1, ...): M1

To reproduce:

1. chmod -r path/to/iso
2. Try to create a new VM and run it, using path/to/iso as the ISO image

[HarryVasanth]

👍 Bump:
I have the same issue as well while mounting the .iso image from a read-only NFS share.

[vaynewoo]

utm