# Trouble with serial console

**URL:** https://forums.rockylinux.org/t/trouble-with-serial-console/12815
**Category:** Rocky Linux Help & Support
**Created:** [February 9, 2024, 8:03pm UTC](https://forums.rockylinux.org/t/trouble-with-serial-console/12815 "2024-02-09T20:03:36Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![jbkt23](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@jbkt23](https://forums.rockylinux.org/u/jbkt23)
#### Post date: [February 9, 2024, 9:56pm UTC](https://forums.rockylinux.org/t/trouble-with-serial-console/12815/2 "2024-02-09T21:56:03Z")

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Is blsconfig enabled or disabled in your vm /etc/default/grub? If enabled then your commandline options have not been added to the /boot/loader/entries/ files. I discovered this the other day. Your grub2-mkconfig should contain this option to update those entries:

```auto
--update-bls-cmdline

```

This appears to be a change introduced in rl9.3 that alters the prior behavior of grub2-mkconfig.  
The last post to this thread provides a link to RH 9.3 changes:  
[https://forums.rockylinux.org/t/issue-in-grubby-while-baking-new-ami-using-kernal-5-14-0-362-13-1-el9-3-x86-64/12549/4](https://forums.rockylinux.org/t/issue-in-grubby-while-baking-new-ami-using-kernal-5-14-0-362-13-1-el9-3-x86-64/12549/4)

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