Re: SELinux blocks access to device files when booting 2.6.32.* kernels (fc12)

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On 05/23/2010 02:32 PM, Karl-Michael Schneider wrote:
> On Sat, May 22, 2010 at 06:05 AM, Tim <ignored_mailbox@xxxxxxxxxxxx> wrote:
> 
>> On Fri, 2010-05-21 at 17:19 -0700, Karl-Michael Schneider wrote:
>>
>>> # kernel-2.6.32.12-115.fc12 in single user mode
>>> $ ls -lZ /dev
>>> crw-------. root root system_u:object_r:unlabeled_t:s0 agpgart
>>> drwxr-xr-x. root root system_u:object_r:unlabeled_t:s0 block
>>> drwxr-xr-x. root root system_u:object_r:unlabeled_t:s0 bsg
>>>
>>>
>>> # kernel-2.6.31.12-174.2.22.fc12 in single user mode
>>> $ ls -lZ /dev
>>> crw-rw----. root audio   system_u:object_r:sound_device_t:s0 adsp
>>> crw-------. root video   system_u:object_r:agp_device_t:s0 agpgart
>>> crw-rw----. root audio   system_u:object_r:sound_device_t:s0 audio
>>> drwxr-xr-x. root root    system_u:object_r:device_t:s0    block
>>
>> While not having the answer to your query, I might pose the obvious
>> questions:
>>
>> Are you booting the other kernel on the same installation?
>>
>> It's just a kernel version change in your grub.conf file between the two
>> of them?
>>
>> You're not booting to a second installation, where you copied all the
>> files across, and copied /dev as files?
>>
>> --
>> [tim at localhost ~]$ uname -r
>> 2.6.27.25-78.2.56.fc9.i686
>>
>> Don't send private replies to my address, the mailbox is ignored.  I
>> read messages from the public lists.
>>
> 
> Yes, I'm booting both kernels in the same installation. I have both
> kernels in my grub.conf file.


Can you post this question on the fedora selinux list.  Seems like this
might be a kernel issue, and the kernel SELinux guys would be there.


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