What were you trying to do that didn't work?

Boot a CVM on Azure with UKI. There's a failure message like below:
 
...
Apr 11 06:44:58 localhost kernel: sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
Apr 11 06:44:58 localhost kernel: sda: sda1 sda2 sda3
Apr 11 06:44:58 localhost kernel: sd 1:0:0:0: [sda] Attached SCSI disk
Apr 11 06:44:58 localhost systemd-udevd[308]: 1:0:0:2: Process '/sbin/modprobe -bv sg' failed with exit code 1.
Apr 11 06:44:58 localhost systemd-udevd[308]: 1:0:0:0: Process '/sbin/modprobe -bv sg' failed with exit code 1.
Apr 11 06:44:58 localhost systemd[1]: Found device Virtual_Disk 3.
Apr 11 06:44:58 localhost systemd[1]: Reached target Initrd Root Device.
Apr 11 06:44:58 localhost systemd[1]: Starting File System Check on /dev/gpt-auto-root...
...
 
But the sg device is eventually mounted fine later on:
...
Apr 11 06:45:06 localhost kernel: hv_vmbus: registering driver hv_netvsc
Apr 11 06:45:06 localhost kernel: hv_netvsc 000d3a8d-bd4c-000d-3a8d-bd4c000d3a8d (unnamed net_device) (uninitialized): SR-IOV not advertised by guests on the host supporting isolation
Apr 11 06:45:06 localhost kernel: sd 1:0:0:0: Attached scsi generic sg0 type 0
Apr 11 06:45:06 localhost kernel: sr 1:0:0:2: Attached scsi generic sg1 type 5
Apr 11 06:45:06 localhost systemd[1]: Condition check resulted in Virtual_Disk EFI\x20System\x20Partition being skipped.
Apr 11 06:45:06 localhost systemd[1]: Starting File System Check on /dev/disk/by-uuid/1053-6FCC...
...
 

1. ls /dev/sg*
   /dev/sg0  /dev/sg1
    
   In other words, there's no functionalities affected at this point. And there's no such issue with ordinary kernel (non-UKI). 

   Please provide the package NVR for which bug is seen:

   kernel 5.14.0-436.el9.x86_64
   systemd-udev 252-28.el9

   How reproducible:

   100%

   Steps to reproduce

2. grep failed /var/log/messages

   Expected results

   No such failure message

   Actual results