Re: dumpdev AUTO in rc.conf does not work

On Sat, 7 Aug 2021 20:10:50 -0400
Daniel Morante via freebsd-current <freebsd-current@freebsd.org> wrote:

> Hello,
> 
> I am running 14.0-CURRENT using the snapshot from 2021-08-05.__ It looks 
> as if setting dumpdev="AUTO" in /etc/rc.conf has no effect on enabling 
> kernel crash dumps.
> 
> root@callisto:~ # uname -a
> FreeBSD callisto 14.0-CURRENT FreeBSD 14.0-CURRENT #0 
> main-n248478-f3a3b061216: Thu Aug__ 5 06:03:20 UTC 2021 root@releng 
> 1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
> 
> root@callisto:~ # swapinfo -h
> Device        Size Used Avail Capacity
> /dev/gpt/swap 30G    0    30G    0%
> 
> root@callisto:~ # dumpon -l
> /dev/null
> 
> root@callisto:~ # sysrc dumpdev
> dumpdev: AUTO
> 
> I have to manually enable it via dumpon even though it's set to AUTO in__ 
> rc.conf
> 
> root@callisto:~ # dumpon /dev/gpt/swap
> root@callisto:~ # dumpon -l
> gpt/swap
> 

Works for me if I set dumpdev to AUTO.

I ran '/bin/sh -x dumpon start' and it found the swap entry in /etc/fstab,
as expected.

Does your /etc/fstab entry for swap have the correct syntax?  Mine looks
like this:
/dev/ada0p5             none            swap    sw              0       0

-- 
Gary Jennejohn