RL 9.3 mapping of disk partitionning changes after reboot

Hello,
My mapping of disk partitionning changes after reboot.

For exemple: sda : 25GB sdb : 100 sdc : 175GB
After powering on hour later : sdb : 100 sda : 25GB 100 sdc : 175GB

The partitionnig size keeps changing order.

I will be grateful if you can help, thanks!

Names (like ‘sda’) are not persistent. See Chapter 2. Persistent naming attributes Red Hat Enterprise Linux 9 | Red Hat Customer Portal

Also look at:

sudo blkid
lsblk -f
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We struggled with a similar kind of issues for nvme devices and below is summary of solution

  1. Don’t use device naming , use only UUID in fstab for partition mounting etc
    2- Linux Kernel gives the option for making device persistent through UDEV
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