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Reimaging can fail on an improperly erased Exadata with grub2-install error: check boot mode!

edited Dec 6, 2021 8:52PM in Exadata General (MOSC) 1 comment

We received a quarter-rack Exadata X6 that had been wiped by the previous owners, but not with the normal erasing script - they had booted from an ISO and used shred , and erased the LSI card configurations. Reimaging worked on all but one of the storage cells. The cell that did not reimage properly failed to install the boot loader, with grub2-install failing and dropping the system to a root shell.

This cell had been set to defaults in system setup, and the wrong boot mode selected. On an X6, it should be Legacy BIOS. It was set to UEFI. Changed it back, and the reimage was successful.

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