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Re: adduser Pre-Depends for qemu-system-common

On 14.03.2013 22:30, Serge Hallyn wrote:
> Quoting Michael Biebl (biebl@debian.org):
>> On 14.03.2013 22:15, Ansgar Burchardt wrote:
>>> Hi,
>>> Serge Hallyn <serge.hallyn@ubuntu.com> writes:
>>>> qemu-system-common installs a udev rules file which sets /dev/kvm group
>>>> to 'kvm'.  Its postinst then adds a kvm group.  However udev reads the
>>>> new rules file as soon as it sees it, sees that group kvm doesn't
>>>> exist, and ignores that part of the rule (until reboot, udev restart,
>>>> or the rule is re-added, of course).
>>> Couldn't postint tell udev explicitly to reload rules after the kvm
>>> group was added? The init script has a reload action which calls
>>> udevadm control --reload-rules which might do the right thing.
>> I'd probably just do an explicit chown/chmod /dev/kvm (given the device
>> exists) in postinst.
> That is not sufficient.  If something else does udevadm trigger, udev
> will re-label /dev/kvm with the old group perms.

Nothing should run udevadm trigger, at least not without being specific
to a subsystem. If a package is doing that, it's buggy.


Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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