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Bug#549710: marked as done (release-notes: [SQUEEZE] udev drops support for kernels < 2.6.22 (or <2.6.27))

Your message dated Mon, 20 Sep 2010 00:18:08 -0700
with message-id <20100920071808.GA22421@dario.dodds.net>
and subject line Re: release-notes: [SQUEEZE] udev drops support for kernels < 2.6.22 (or <2.6.27)
has caused the Debian Bug report #549573,
regarding release-notes: [SQUEEZE] udev drops support for kernels < 2.6.22 (or <2.6.27)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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549573: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=549573
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--- Begin Message ---
Package: release-notes
Severity: important

Squeeze udev version will not support < 2.6.22 kernels.


Simon Paillard
--- Begin Message ---
Recent releases of udev depend on signalfd(2), so squeeze will require
at least a 2.6.22 kernel.
The mechanism used for the etch to lenny upgrade is still in place, so
hopefully it will work again.

I suppose that the release notes will need to be updated.

The udev package in unstable does not reflect this yet, I will fix it in
the next upload.

libsane maintainer: you can now remove the rules related to
SUBSYSTEM=="usb_device" (old style /dev/bus/usb/).


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I've documented this issue in en/upgrading.dbk as follows:

<section id="upgrading-udev">
<title>Upgrading the kernel and udev</title>
The <systemitem role="package">udev</systemitem> version in &releasename;
requires a kernel of version 2.6.26 or newer with the
<literal>CONFIG_SYSFS_DEPRECATED</literal> option disabled and the
<literal>CONFIG_INOTIFY_USER</literal> and
<literal>CONFIG_SIGNALFD</literal> options enabled.  Because the standard
Debian kernels in &oldreleasename; have
<literal>CONFIG_SYSFS_DEPRECATED</literal> enabled, and the <systemitem
role="package">udev</systemitem> version in &oldreleasename; will not
provide all the functionality expected by the latest kernels, special care
must be taken when upgrading to avoid putting your system in an unbootable
Booting the 2.6.26 kernel from &oldreleasename; with the <systemitem
role="package">udev</systemitem> from &releasename; may result in a failure
to correctly assign names to network devices, and will also fail to apply
certain additional permissions to block devices (such as access by the
<literal>disk</literal> group).  It is therefore strongly recommended that
you upgrade the kernel on its own at this point, to ensure a compatible
kernel is available before upgrading <systemitem
To proceed with this kernel upgrade, run:
# aptitude install linux-image-2.6-<replaceable>flavor</replaceable>
See <xref linkend="kernel-metapackage"/> for help in determining which
of kernel package you should install.
Immediately after upgrading the kernel, it is recommended to also install
the new <systemitem role="package">udev</systemitem> to minimize the risk of
other incompatibilities caused by using the old udev with a new kernel.  You
can do this by running:
# apt-get install udev

There is still an open bug report on the udev package itself about improving
the upgrade handling for squeeze (bug #571255), but in the meantime, the
issue is now documented so that it shouldn't be a blocker for upgrade

Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek@ubuntu.com                                     vorlon@debian.org

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