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 16, 2021
Applies to:
Linux OS - Version Oracle Linux 7.4 with Unbreakable Enterprise Kernel [4.1.12] and laterOracle Cloud Infrastructure - Version N/A and later
Information in this document applies to any platform.
Symptoms
Current OS and kernel: Oracle Linux 7.4 with Unbreakable Enterprise Kernel
ACTUAL BEHAVIOR
---------------
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.
EXPECTED BEHAVIOR
-----------------------
Server should able to boot after patching.
Changes
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.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |