MSGID: <10egdjj$lpj1$3@dont-email.me> 0763f689
REPLY: <10eeeul$430g$1@dont-email.me> 76161650
PID: PyGate 1.5
TID: PyGate/Linux 1.5
CHRS: CP1252 2
TZUTC: 1100
REPLYADDR ldo@nz.invalid
REPLYTO 3:633/10 UUCP
On Wed, 5 Nov 2025 03:05:57 -0000 (UTC), bp wrote:

> Somewhere I got the idea that modern Linux systems don't need to
> reboot except for a kernel change.

Almost. But there is at least one core library, the C runtime, that is
linked into just about every process that runs. So an update to that
library requires those processes to restart.

It?s likely those service restarts happened without you noticing.

> Is that correct? I've never seen a prompt to reboot, nor an
> automatic reboot, on RasPiOS.

Greg Kroah-Hartman, ?Mr Linux Device Drivers?, has said

that running the latest securely-patched stable kernel (important on
public-facing servers, for example) would mean a kernel update just
about every week.

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