Normally when we talk about our high-security boot firmware PureBoot, it’s in the context of the advanced tamper detection it adds to a system. For instance, recently we added the ability to detect tampering even in the root file system. While that’s a critical benefit PureBoot provides over our default coreboot firmware, it also provides a number of benefits outside of security that can aid tinkerers who need to recover a system that won’t boot. In this post I’m going to talk about the powerful recovery console PureBoot provides, and explain some of the extra things you can do with it compared to a traditional GRUB recovery console.
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