Re: WARNING: potential breakage of the initramfs-brltty feature

Hello,

Sébastien Hinderer, le dim. 22 févr. 2026 19:19:02 +0100, a ecrit:
> I am under the impression that embedding BRLTTY in recent initramfs
> file systems breaks them to the pont that the whole boot becomes
> impossible, the kernel trying to realise an impossible mount.

We had seen it try to mount /dev on /root/dev, and it fails with
"invalid argument". Not sure what could be trying to do this, and why
brltty could have an influence on this.

> I observed this when trying to update to the Linux kernel
> 6.18.12+deb14-amd64 so I would suggest not to try booting on this kernel
> for the moment.

Or maybe some people on the list have already upgraded and also use
initrd embedding and didn't see a problem?

There doesn't seem to be a new version of initramfs-tools in debian, I
wonder what other tool could be involved.

Samuel

> In addition, even if you stick to an older kernel, it may be wise to
> make a copy of both your current working kernel and initramfs in /boot.
> 
> You can copy them to counterparts ending with .old and then use
> update-grup to make sure Grub will know how to boot these working
> artifacts.
> 
> Seb.