# Error at boot

**URL:** <https://community.zymbit.com/t/error-at-boot/1678>\
**Category:** Encrypting File System\
**Created:** [July 15, 2024, 8:38am UTC](https://community.zymbit.com/t/error-at-boot/1678 "2024-07-15T08:38:39Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Alex1](https://avatars.discourse-cdn.com/v4/letter/a/898d66/32.png) [@Alex1](https://community.zymbit.com/u/Alex1)\
**Post date:** [July 15, 2024, 8:38am UTC](https://community.zymbit.com/t/error-at-boot/1678/1 "2024-07-15T08:38:39Z")

</div>

On booting a raspberry PI4 running Bullseye OS, filesystem encrypted with zymkey 4 in production mode, we get this error attached.

 ![Error on boot with zymkey](https://canada1.discourse-cdn.com/flex027/uploads/zymbit/original/2X/8/855446c0ed2a5d7cf0369da5537421f6ac2a9cb5.jpeg)

This is the fourth case that has occurred with approximately twenty installations.  
Has anyone run into the same problem and can help us understand the reason for the error?