Why is the Grub configuration not getting updated after updating kernel package?
Issue
- Kernel installation updates are not reflecting to
/boot/grub/grub.conf(RHEL 5,6) or/boot/grub2/grub.cfg(RHEL 7) - Can not see entries for latest kernel version in grub, even though kernel was installed without error.
- After updating a server, the old kernel is still booted instead of the new one.
- How to rebuild grub2.cfg boot file?
- How to recreate or refresh grub2.cfg boot menu file?
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 5
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