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A comment on Grub2 security update renders system unbootable. Parent comment

Re:Grub2 security update renders system unbootable by cesarb on Thursday July 30, 2020 @01:04PM (#24000513)
That's a great start, but does not help if the data was also affected. For instance, running a new version might have upgraded a database to a newer format, or added new data with a format that the older version does not understand.
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Re:Grub2 security update renders system unbootable by forgotpwd16 on Thursday July 30, 2020 @01:33PM (#24000838)
True, schema upgrades are an issue which hasn't been discussed[1]. Maybe some kind of versioning or pre-update backup in case of non-invertible data upgrade could help?

[1]: https://discourse.nixos.org/t/automatic-database-schema-upda...

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