So, Microsoft's latest Windows 11 update decided to blow away my dual-boot config because Microsoft apparently hasn't been involved in an antitrust lawsuit recently enough. (Seriously, I liken this to buying a Ford vehicle and then discovering that it actively disables any non-Ford vehicles also parked in your driveway. Not cool, Microsoft.) Anyhow, since I run Debian 12 with LVM and an encrypted root filesystem, recovering the grub bootloader was a very manual process. I'm adding the steps I used here for my own future reference. Yours will probably be different. This assumes you know your way around Linux, hardware device mappings, &etc. Please don't ask me for help recovering your own system unless you're also offering me $200/hr for my time. 1. Boot Debian 12 install media, Advanced Options, "Rescue Mode" 2. Follow the prompts but then "continue with no root filesystem", drop to an installer shell 3. The encrypted LVM logical volume...
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