2

When I install a CentOS in my Physical Server:

there list two options:

enter image description here

What's the difference between the Red Hat Enterprise Linux Server(3.10.0-514.e17.x86_64) 7.3 (Maipo) and Red Hat Enterprise Linux Server(0-rescue-bc0bxxxxx)?

1 Answer 1

Reset to default
2

The second line item in GRUB2 is a stripped-down OS used to recover when your standard OS (first line) will not boot. It contains a valid installation tree, and the installation tree must be for the same version of Red Hat Enterprise Linux as the Red Hat Enterprise Linux disk from which you booted.

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