Disk label changes when system is rebooted while setting up Fedora CoreOS 39

I am installing a Fedora CoreOS v39.2024030 on a bare metal system (PowerEdge server) through a iDRac interface. It's a two-step process: 1. Here it's needed to boot the system into a LiveISO (virtual cd-rom) and perform the install step:

coreos-installer install /dev/sda --ignition-url http://filepath.ign 

Once file system is copied, it reboots to perform the installation. 2. Reboot and perform automated installation based on ignition file instructions. My issue is that when I first boot the system with liveCD, it shows my two disks (block storage names) **sda and sdb**, but when the system reboots for the second phase, those disk names change to **sdb and sdc**. The reason is that step 1 creates some temporary disk of 0B which sits at sda. Because of this, the setup fails with the error "Problem opening /dev/sda". How can I make sure the disk label does not change on reboot? References: Official Documentation