# Migration fails: 21. Upgrade the system to Debian Bullseye and YunoHost 11.x

**URL:** https://forum.yunohost.org/t/migration-fails-21-upgrade-the-system-to-debian-bullseye-and-yunohost-11-x/20651
**Category:** Support
**Tags:** english
**Created:** [August 12, 2022, 10:06am UTC](https://forum.yunohost.org/t/migration-fails-21-upgrade-the-system-to-debian-bullseye-and-yunohost-11-x/20651 "2022-08-12T10:06:25Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Aleks](https://forum.yunohost.org/user_avatar/forum.yunohost.org/aleks/32/1704_2.png) [@Aleks](https://forum.yunohost.org/u/Aleks)
#### Post date: [August 12, 2022, 11:54am UTC](https://forum.yunohost.org/t/migration-fails-21-upgrade-the-system-to-debian-bullseye-and-yunohost-11-x/20651/2 "2022-08-12T11:54:58Z")

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Hi there,

according to the log, you are encountering the `libc6-dev : Breaks: libgcc-8-dev ` issue

Please check [this post](https://forum.yunohost.org/t/migration-to-11-wont-start-libc6-dev-breaks-libgcc-8-dev/20617/43) for a fix

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