[systemd-devel] Problems with rootfs over nfs

[Gustavo Sverzut Barbieri]

On Mon, May 16, 2011 at 8:44 AM, Kay Sievers <kay.sievers at vrfy.org> wrote:
> 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.

Maybe state that in the README and even check during startup if such
thing is set and warn the user?

-- 
Gustavo Sverzut Barbieri
http://profusion.mobi embedded systems
--------------------------------------
MSN: barbieri at gmail.com
Skype: gsbarbieri
Mobile: +55 (19) 9225-2202