Re: CONFIG_SYSFS_DEPRECATED_V2 is not set for linux-image-2.6.32-5-xen-amd64
On Tue, Jul 27, 2010 at 07:26:07AM +0100, Ian Campbell wrote:
> On Tue, 2010-07-27 at 00:47 +0100, Ben Hutchings wrote:
> > On Tue, 2010-07-27 at 01:04 +0200, Bart Verwilst wrote:
> > > Hi
> > >
> > > I am not on the list, so please forgive me and put me in CC :)
> > > I'm trying to boot an Ubuntu Lucid from linux-image-2.6.32-5-xen-amd64
> > > through the Xen 4.0.1-rc3 hypervisor ( also Debian packages ), which
> > > boots fine, but then fails to show me the console:
> > [...]
> > > While looking for a reason ( console and stuffs
> > > should all be fine ), i came across this:
> > >
> > > root@database42:/boot# grep DEPRE config-2.6.32-5-xen-amd64
> > > # CONFIG_SYSFS_DEPRECATED_V2 is not set
> > > CONFIG_ENABLE_WARN_DEPRECATED=y
> > >
> > >
> > > I knew the latest udev needs this to be deprecated, and the Xen docs
> > > told me the same:
> > >
> > > "Make sure you have these two set (otherwise your init hangs and udev
> > > stops working)
> > >
> > > CONFIG_SYSFS_DEPRECATED=y
> > > CONFIG_SYSFS_DEPRECATED_V2=y"
> > >
> > >
> > > What am i missing here? Why does it work for the Debian systems ( i guess :) )
> >
> > You are confused. CONFIG_SYSFS_DEPRECATED(_V2)=y means that the
> > deprecated entries still appear in sysfs, so the current configuration
> > is correct.
> >
> > I think the deprecated entries used to be required by the administration
> > tools that run in dom0, but AFAIK this is no longer be true.
>
> I thought the option was there to allow older udev (and/or initrd)
> running on newer kernels? IIRC the initrd hang referred to above was a
Yes. And also multipath and lsscsi.
> bug in RH's nash (used in the initrd) which was triggered by a dir in
> sysfs becoming a symlink (or vice-versa).
>
> I wasn't aware of any Xen specific requirement for those options, the
> suggestion on
> http://wiki.xensource.com/xenwiki/2.6.18-to-2.6.31-and-higher does seem
> overly broad since it only applied to userspace of a particular vintage
> from one distro family. Konrad, what do you think?
Debian does not seem to use nash. I am not sure which version (and if
they have the patches) for the multipath are affected. I can definitly
alter it to say: "Hey, this is only for RHEL/CentOS users".
>
> Ian.
> --
> Ian Campbell
>
> 94% of the women in America are beautiful and the rest hang out around here.
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