# Alternative: Set Boot Order When CD-ROM Not Shown ## Problem CD/DVD drive is attached, but CD-ROM doesn't appear in Boot Order dropdown. ## Solution: Use Boot Order Text Field In Proxmox, you can set boot order by typing device names directly. ### Method 1: Edit Boot Order Field Directly 1. **Go to:** VM → **Options** tab 2. **Find:** "Boot Order" option 3. **Click:** "Edit" (or double-click) 4. **In the dialog, look for a text field** (not just dropdown) 5. **Type or enter:** `order=ide2;scsi0` - `ide2` = CD/DVD drive - `scsi0` = Hard disk - `;` separates devices (first = boot priority) 6. **Click:** "OK" ### Method 2: Use BIOS Boot Menu If boot order can't be set: 1. **Start the VM** 2. **Open Console** 3. **When VM starts, press F2 or Delete** (during boot) 4. **Enter BIOS/UEFI settings** 5. **Navigate to Boot menu** 6. **Set CD/DVD as first boot device** 7. **Save and exit** ### Method 3: Manual Boot Selection 1. **Start the VM** 2. **Open Console** 3. **When VM starts, press F12** (boot menu) 4. **Select CD/DVD drive** from boot menu 5. **Ubuntu installer should start** ### Method 4: Verify CD/DVD is Actually Attached 1. **Hardware tab** 2. **Look for:** "CD/DVD Drive (ide2)" 3. **Verify it shows:** `ubuntu-24.04.3-live-server-amd64.iso` 4. **If missing or shows "Do not use any media":** - Click on it → Edit - Select ISO image - Click OK ### Method 5: Check Proxmox Version Some Proxmox versions show boot order differently: - **Older versions:** Text field where you type `order=ide2;scsi0` - **Newer versions:** Drag-and-drop interface - **If neither works:** Use BIOS boot menu (Method 2) ## Quick Test 1. **Start VM** 2. **Open Console** 3. **Press F12** when VM boots 4. **Select CD/DVD** from boot menu 5. **If Ubuntu installer appears:** Boot order is working, just needs to be set as default ## Troubleshooting **CD-ROM still not in boot order:** - Verify CD/DVD drive exists in Hardware tab - Check it's not set to "Do not use any media" - Try removing and re-adding the CD/DVD drive - Refresh the Options tab **VM won't boot from CD even with F12:** - Verify ISO file isn't corrupted - Check CD/DVD drive is properly attached - Try a different ISO or re-upload it **Boot order field is read-only:** - You may need to stop the VM first - Or use BIOS boot menu method