How to recover in rescue mode if GRUB boot fails with "Error 15: File not found"
Issue
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I recently completed some maintenance on my system and rebooted. Now my system cannot boot and shows output similar to the following:
Booting 'Red Hat Enterprise Linux Server (<Version>)' root (hd0,0) Filesystem type is ext2fs, partition type 0x83 Kernel /<kernel version> Error 15: File not Found Press any key to continue
Environment
- Red Hat Enterprise Linux 5, 6, 7, 8, 9
- rescue mode
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