[Bug 293582] Unknown oid 'hw.snd.default_unit' message at startup and shutdown
Date: Wed, 04 Mar 2026 14:44:51 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293582
Bug ID: 293582
Summary: Unknown oid 'hw.snd.default_unit' message at startup
and shutdown
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: conf
Assignee: bugs@FreeBSD.org
Reporter: rz-rpi03@h-ka.de
Hi,
on VMs without any sound device /etc/rc.d/virtual_oss triggers sysctl(8) to
output the error message "unknown oid 'hw.snd.default_unit'" on the console
at system startup or shutdown.
The rc.conf variable virtual_oss_enable has its default value of "NO" from
/etc/defaults/rc.conf.
Without much changing of virtual_oss script a simple solution would be to
redirect stderr to /dev/null while executing sysctl(8).
Regards
Ralf
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