[systemd-devel] Problems with rootfs over nfs

[Kay Sievers]

On Mon, May 16, 2011 at 13:39, Daniel Drake <dsd at laptop.org> wrote:
> On 15 May 2011 15:16, Kay Sievers <kay.sievers at vrfy.org> wrote:
>> Just a first quick check of an issue we ran into with ATA disks:
>> what's in /proc/sys/kernel/hotplug before you shut down? Or what's
>> CONFIG_UEVENT_HELPER in your kernel setup, it must be ="" on modern
>> systems, otherwise the kernel will they to exec() binaries all the
>> time and keep the system's rootfs busy.
>
> I'm also having trouble shutting down with systemd, and I have
> CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
> So I'll try this solution. Thanks.
>
> Just a quick question: is the same also true for Fedora 14
> (upstart-1.2, udev-161)? i.e. can and should that config option be
> cleared under that setup too? I guess so, given that /sbin/hotplug
> doesn't even exist.

Yeah, /sbin/hotplug is ancient history or (broken) embedded-like
setups, it should always be disabled. In earlier udev/init setups we
used to do: echo > /proc/sys/kernel/hotplug, but we don't do it in
systemd setups, that's why it pops up now.

Kay