APPLIED: [SRU][kernel-snaps-u24.04/pi][PATCH 0/1] pi-kernel does not ship PPP drivers (LP: #2106751)

Juerg Haefliger juerg.haefliger at canonical.com
Thu Apr 17 06:55:29 UTC 2025


Applied to kernel-snaps-u24.04 pi branch.

Thanks
...Juerg


> BugLink: https://bugs.launchpad.net/bugs/2106751
> 
> [ Impact ]
> 
> Hi there
> 
> The linux-raspi kernel package in Ubuntu is missing essential kernel modules
> required for PPP (Point-to-Point Protocol) functionality using pppd. This
> prevents common use cases such as connecting via serial modems, USB cellular
> modems, or establishing PPPoE connections.
> 
> The following configurations needed to be added;
> CONFIG_PPP
> CONFIG_PPP_ASYNC
> CONFIG_PPP_DEFLATE
> CONFIG_PPP_BSDCOMP
> CONFIG_PPP_MPPE
> CONFIG_PPP_SYNC_TTY
> CONFIG_PPPOE
> CONFIG_PPPOL2TP
> CONFIG_PPTP
> 
> Impacted kernel: 6.8
> OS version: Ubuntu Core 24, Ubuntu 24.04
> 
> Thanks,
> Bugra
> 
> [ Fix ]
> 
> Include ppp kernel modules in pi-kernel snap.
> 
> [ Test Case ]
> 
> Install kernel snap, verify new kernel modules are present and usable.
> 
> [ Where Problems Could Occur ]
> 
> This adds additional drivers to the snap. If they get loaded, the usual kernel problems can occur (stack traces, crashes, ...).
> 
> Juerg Haefliger (1):
>   modules.list: Add drivers/net/ppp/*
> 
>  modules.list | 1 +
>  1 file changed, 1 insertion(+)
> 

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