[Arm-dev] testing updated kernels - feedback wanted !

Robert Moskowitz

rgm at htt-consult.com
Thu Feb 4 11:56:27 UTC 2016


Maybe tomorrow.  More likely Monday.

I have been crunching on the paid work....  :)

On 02/04/2016 02:39 AM, Fabian Arrotin wrote:
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> On 25/01/16 17:29, Fabian Arrotin wrote:
>> Hi,
>>
>> With the recent CVE-2016-0728, I was quickly having a look at
>> updating the different kernels we ship through the official
>> images. Actually we only have two kernels : - what I'd call the
>> "generic" one (that can be used on multiple boards directly, and
>> following the Fedora upstream kernel) - the raspberrypi2 variant
>> (built from sources located at
>> https://github.com/raspberrypi/linux)
>>
>> I've built (and tested locally those myself) the following updated
>> kernels (including patches for CVE-2016-0728) : -
>> kernel-4.3.3-200.el7.armv7hl.rpm (updating
>> kernel-4.2.3-200.el7.armv7hl.rpm) -
>> raspberrypi2-kernel-4.1.16-v7+.1.20160125gitab2b2e0.el7.armv7hl.rpm
>>
>>
> (for rpi2, obviously, updating
>> raspberrypi2-kernel-4.1.11-v7+.1.20151021git4047fe2.el7.armv7hl.rpm)
>>
>>   One important thing is that actually we still lack an automatic
>> update process, something I'd like to work (with you ?) in the
>> following days/weeks. But you can already test the updated/unsigned
>> kernels (feedback wanted !)
>>
>> - create the /etc/yum.repos.d/ .repo file pointing to
>> corresponding repo, depending on your board : -
>> http://dev.centos.org/centos/7/kernel/armhfp/kernel-generic/ -
>> http://dev.centos.org/centos/7/kernel/armhfp/kernel-rpi2/ as an
>> example, here is how it would look like :
>>
>> [kernel-generic] name=armhfp kernel generic
>> baseurl=http://dev.centos.org/centos/7/kernel/armhfp/kernel-generic/
>>
>>
> gpgcheck=0
>> enabled=1
>>
>> or
>>
>> [kernel-rpi2] name=armhfp rpi2 kernel
>> baseurl=http://dev.centos.org/centos/7/kernel/armhfp/kernel-rpi2/
>> gpgcheck=0 enabled=1
>>
>> - now "yum clean all ; yum update"
>>
>> - as the current call to "/bin/kernel-install add" (from systemd
>> shipped with CentOS 7) doesn't cover - in the whole chain- armhfp,
>> one then needs to build the initramfs + modify boot config
>>
>> rpi2 : - dracut
>> /boot/initramfs-4.1.16-v7+.1.20160125gitab2b2e0.el7.img
>> 4.1.16-v7+.1.20160125gitab2b2e0.el7 - systemctl reboot
>>
>> generic : - dracut /boot/initramfs-4.3.3-200.el7.armv7hl.img
>> 4.3.3-200.el7.armv7hl - edit /boot/extlinux.conf to modify the
>> kernel/initrd - systemctl reboot
>>
>> Thanks for the testers, and after we can edit the wiki page, and
>> start working on a script that would automate all that.
>>
>> Cheers,
> Just wondering if someone had time to check/test this ?
>
> - -- 
> Fabian Arrotin
> The CentOS Project | http://www.centos.org
> gpg key: 56BEC54E | twitter: @arrfab
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