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Description of problem:
For a closed VM, open "Add disk" dialog, then select "Custom path" to attach the disk. Then select "Device" to "CD/DVD disc" first, after that input a raw disk, then click "Add" of the dialog. The format of the disk is qcow2, not raw.

Version-Release number of selected components (if applicable):
cockpit-machines-292-1.el8.noarch
cockpit-292-1.el8.x86_64
libvirt-dbus-1.3.0-2.module+el8.8.0+16781+9f4724c2.x86_64

How reproducible:
100%

Steps to Reproduce:
1 Create a closed VM, then enter the VM detail page
2 Click "Add disk", then select "Custom path"
3 Select "Device" to "CD/DVD disc"
4 Input a raw disk path
5 Click "Add" on the dialog
6 Check the format of the disk attached above

Actual results:
1 The format of the disk is qcow2

Expected results:
1 The format of the disk should be raw

Additional info:

PR: https://github.com/cockpit-project/cockpit-machines/pull/1124

Test Versions:
cockpit-machines-296-1.el8.noarch
cockpit-296-1.el8.x86_64
libvirt-dbus-1.3.0-2.module+el8.9.0+18724+20190c23.x86_64

Test Steps:
1 Create a closed VM, then enter the VM detail page
2 Click "Add disk", then select "Custom path"
3 Select "Device" to "CD/DVD disc"
4 Input a raw disk path
5 Click "Add" on the dialog
6 Check the format of the disk attached above

Test Results:
1 The format of the disk is raw

According to the results, move status to VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (cockpit-appstream bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:6924