Root LV is not getting activated on boot and system drops to dracut shell with error "Warning: /dev/mapper/ol-root not found"

(Doc ID 2324527.1)

Last updated on JANUARY 11, 2018

Applies to:

Linux OS - Version Oracle Linux 7.4 with Unbreakable Enterprise Kerne [4.1.12] and later
Information in this document applies to any platform.


Current OS and kernel: Oracle Linux 7.4 with Unbreakable Enterprise Kernel

Oracle Linux 7 - failure to boot after patching.
Server: Dell R730 (1TB RAM)
booting to internal Raid 1 HD with plenty of empty space.
Not virtualization.

The system is not see the default "ol-root" LVM partition in order to boot off of it.

Server should able to boot after patching.


 Server was upgraded from OL 7.3 to OL 7.4 and also upgraded kernel to 4.1.12-94.3.9.el7uek.x86_64.


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