On Tue, 11 Sep 2018 11:45 am Joel Brunetti <joelbrune...@gmail.com> wrote:

> Hey Team,
>
> I'm having trouble booting a previously bootable system.
> This system has been in use since very shortly before the Stretch release
> and has always been Stretch.
> I'm using Grub to boot a fully encrypted system. Each drive is partitioned
> with GPT and encrypted using LUKS. The drives are then used together with
> BTRFS.
>
> This system has worked with some minor boot problems (Which I thought were
> fixed by adding the bios_grub flag to my partition and the pmbr_boot flag
> to my disk) for at least a year.
> Today I can not boot the system.  I suspect I've made it worse for trying
> to repair it so I will jump to where I am now.
>
> When I boot I get on either device:
> error: no such device: (UUID of my decrypted luks volume / btrfs pool)
> error: unknown filesystem
>

Maybe check that the uuid hasn't changed somehow if mounting by uuid in
/etc/fstab


> I've chrooted onto the system using a usb key.
> I can open my encrypted drives and mount the btrfs filesystem.
> I suspected a bad kernel or grub update so I:
> update initramfs -u -k all
> update-grub
> grub-install /dev/sda
> grub-install /dev/sdb
>
> This gives the above errors when I boot.
>
> When I inspected /boot/grub/grub.cfg I noted it is missing "insmod
> cryptodisk" and other encryption related modules. This is despite
> /etc/default/grub containing "GRUB_ENABLE_CRYPTODISK=y".  I tried restoring
> /boot/grub/grub.cfg from a snapshot that does include those modules and
> then grub-install to both drives again but to no avail.
>
> I'm really at a loss and could really use some help in restoring my system.
>
> Thanks,
> Joel
>
>
>
>

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