[kernel-xen] Xen 4.1 and latest CentOS 7.2.1511
Steffan Cline
steffan at hldns.com
Tue Dec 29 15:59:19 AEDT 2015
For some reason, the testing repo is not showing anything via yum yet I see it in the browser.
Thank you,
Steffan Cline
602-793-0014
On 12/28/15, 9:36 PM, "Steffan Cline" <kernel-xen-bounces at lists.wireless.org.au on behalf of steffan at hldns.com> wrote:
>I just did a clean install and am about to test it.
>
>Thanks,
>Steffan Cline
>steffan at hldns.com
>602-793-0014
>
>> On Dec 28, 2015, at 9:35 PM, Steven Haigh <netwiz at crc.id.au> wrote:
>>
>> I can confirm that 4.1.15-3.2 fixes the issue.
>>
>> # cat /proc/version
>> Linux version 4.1.15-3.2.el7xen.x86_64 (mockbuild at dev.crc.id.au) (gcc
>> version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Tue Dec 29
>> 14:33:13 AEDT 2015
>>
>> It's now available in for both EL6 & EL7 in the -testing repos.
>>
>> I'd also recommend that if your host doesn't need any custom compiled
>> modules that you enable "enforcemodulesig=1" on your kernel command
>> line. This will ensure that only correctly signed modules are able to be
>> loaded into a running system.
>>
>> This has been implemented for both EL6 & EL7 packages.
>>
>> --
>> Steven Haigh
>>
>> Email: netwiz at crc.id.au
>> Web: https://www.crc.id.au
>> Phone: (03) 9001 6090 - 0412 935 897
>>
>>> On 29/12/2015 2:46 PM, Steven Haigh wrote:
>>> As per your bug report, I may have found the solution.
>>>
>>> http://xen.crc.id.au/bugs/view.php?id=65
>>>
>>> I believe the requirement for the new systemd packages released
>>> on/around the 26th of this month require CONFIG_FHANDLE set in the kernel.
>>>
>>> As most people installed 4.1.15-1 *before* this update to systemd, those
>>> installs are still working. I believe that updates *after* the systemd
>>> update will fail.
>>>
>>> Hold fire and see if you can test 4.1.15-3.2 when it hits the
>>> el7-testing repo and see if that fixes the problems we're both seeing now.
>>>
>>> --
>>> Steven Haigh
>>>
>>> Email: netwiz at crc.id.au
>>> Web: https://www.crc.id.au
>>> Phone: (03) 9001 6090 - 0412 935 897
>>>
>>>> On 29/12/2015 2:36 PM, Steffan Cline wrote:
>>>> No dice for me with -1. I'll wipe clean and try again in case something is hosed from -2
>>>>
>>>> It too gets stuck at dracut
>>>>
>>>>
>>>>
>>>> Thanks,
>>>> Steffan Cline
>>>> steffan at hldns.com
>>>> 602-793-0014
>>>>
>>>>> On Dec 28, 2015, at 7:20 PM, Steven Haigh <netwiz at crc.id.au> wrote:
>>>>>
>>>>> Hmm - I've noticed that 4.1.15-3.1 in el7-testing gives me the same...
>>>>>
>>>>> Have you tried 4.1.15-1? This works properly in EL7 for me - however it
>>>>> seems something has happened with either other updates - or in the
>>>>> changes I've made between 4.1.15-1 and 4.1.15-2.
>>>>>
>>>>> I have updated to 4.1.15-3.1 in an EL7 Xen DomU, and I get this on boot:
>>>>> [ *** ] A start job is running for dev-xvda.device (3min 15s / no limit)
>>>>>
>>>>> Back in the old days, this would be easy to debug - however I'm not sure
>>>>> how to get systemd to play along and figure out the problem here.
>>>>>
>>>>> It seems because /dev/xvda (in my case) isn't 'starting', it doesn't log
>>>>> anything, and I can't seem to get to a shell.
>>>>>
>>>>> --
>>>>> Steven Haigh
>>>>>
>>>>> Email: netwiz at crc.id.au
>>>>> Web: https://www.crc.id.au
>>>>> Phone: (03) 9001 6090 - 0412 935 897
>>>>>
>>>>>> On 29/12/2015 1:09 PM, Glenn Enright wrote:
>>>>>> It might be possible the step 4 broke something in your installs. It
>>>>>> might even be as simple as the grub configuration being messed up.
>>>>>>
>>>>>> Consider purging and then reinstalling kernel-xen packages? eg...
>>>>>>
>>>>>> yum remove kernel-xen*
>>>>>> yum clean all
>>>>>> grub2-set-default 0
>>>>>> yum install kernel-xen kernel-xen-firmware
>>>>>>
>>>>>> Regards, Glenn
>>>>>> http://ri.mu - Startups start here.
>>>>>> Hosting. DNS. Web Programming. Email. Backups. Monitoring.
>>>>>>
>>>>>>> On 29/12/15 13:21, Steffan Cline wrote:
>>>>>>> Steve,
>>>>>>>
>>>>>>> Here is how I had installed it.
>>>>>>>
>>>>>>> 1) Installed CentOS 7 from an image I had
>>>>>>> 2) Installed Cloudmin which did this: (from an excerpt of
>>>>>>> http://cloudmin.virtualmin.com/gpl/scripts/cloudmin-gpl-redhat-install.sh)
>>>>>>>
>>>>>>> --------------------------------------------------
>>>>>>> # Enable Xen kernels repo, if on CentOS 6
>>>>>>> yum info kernel-xen >/dev/null 2>&1
>>>>>>> if [ "$?" != 0 ]; then
>>>>>>> echo Enabling Xen kernel repo for CentOS 6 ..
>>>>>>> yum install wget
>>>>>>> yum install
>>>>>>> http://au1.mirror.crc.id.au/repo/kernel-xen-release-6-5.noarch.rpm
>>>>>>> if [ "$?" != 0 ]; then
>>>>>>> echo .. repo install failed
>>>>>>> exit 1
>>>>>>> fi
>>>>>>> echo .. done
>>>>>>> echo ""
>>>>>>> fi
>>>>>>>
>>>>>>>
>>>>>>> # YUM install Perl, modules and other dependencies
>>>>>>> echo Installing required Perl modules using YUM ..
>>>>>>> yum install -y perl openssl perl-Net-SSLeay vixie-cron bind bind-utils
>>>>>>> kernel-xen kernel-xen-devel xen xen-libs lsof perl-Data-Dumper
>>>>>>> if [ "$?" != 0 ]; then
>>>>>>> echo .. install failed
>>>>>>> exit 1
>>>>>>> fi
>>>>>>> yum install -y perl-JSON
>>>>>>> yum install -y dhcp
>>>>>>> yum install -y openssh-clients
>>>>>>> echo .. done
>>>>>>> echo ""
>>>>>>>
>>>>>>> ————————————————————————
>>>>>>> 3) Did a reboot, all was well using the Xen kernel
>>>>>>> vmlinuz-4.1.15-2.el7xen.x86_64.
>>>>>>>
>>>>>>> 4) Did a yum update, all seemed ok, rebooted and ended up in the new
>>>>>>> CentOS kernel.
>>>>>>>
>>>>>>> 5) Changed it back using grub2-set-default 2 (which was the xen kernel)
>>>>>>>
>>>>>>> 6) Reboot - stuck in dracut.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Thank you,
>>>>>>> Steffan Cline
>>>>>>> 602-793-0014
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 12/28/15, 5:07 PM, "Steven Haigh"
>>>>>>> <kernel-xen-bounces at lists.wireless.org.au on behalf of
>>>>>>> netwiz at crc.id.au> wrote:
>>>>>>>
>>>>>>>> Is this using the kernel-xen package as a Dom0, DomU or on bare metal?
>>>>>>>>
>>>>>>>>> On 29/12/15 07:20, Steffan Cline wrote:
>>>>>>>>> If you figure it out, please let us know. I have several hours into it.
>>>>>>>>>
>>>>>>>>> I have 4 dead Dell R610 hosts until I figure out what to do about this.
>>>>>>>>>
>>>>>>>>> Sadly I must keep going until I figure it out.
>>>>>>>>>
>>>>>>>>> Thank you,
>>>>>>>>> Steffan Cline
>>>>>>>>> 602-793-0014
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> From: <kernel-xen-bounces at lists.wireless.org.au
>>>>>>>>> <mailto:kernel-xen-bounces at lists.wireless.org.au>> on behalf of
>>>>>>>>> Christiaan den Besten <chris at prolocation.net
>>>>>>>>> <mailto:chris at prolocation.net>>
>>>>>>>>> Reply-To: Xen Dom0 kernel for EL6 <kernel-xen at lists.wireless.org.au
>>>>>>>>> <mailto:kernel-xen at lists.wireless.org.au>>
>>>>>>>>> Date: Monday, December 28, 2015 at 12:36 PM
>>>>>>>>> To: Xen Dom0 kernel for EL6 <kernel-xen at lists.wireless.org.au
>>>>>>>>> <mailto:kernel-xen at lists.wireless.org.au>>
>>>>>>>>> Subject: Re: [kernel-xen] Xen 4.1 and latest CentOS 7.2.1511
>>>>>>>>>
>>>>>>>>> Hi Steffan!
>>>>>>>>>
>>>>>>>>> Wont help you right away, but i had the same issue with a freshly
>>>>>>>>> installed system last night.
>>>>>>>>>
>>>>>>>>> So this will probably influence others as well if they would update.
>>>>>>>>>
>>>>>>>>> Haven't started troubleshooting just yet ...
>>>>>>>>>
>>>>>>>>> bye,
>>>>>>>>> Chris
>>>>>>>>>
>>>>>>>>> On 28 dec. 2015, at 20:18, Steffan Cline <steffan at hldns.com
>>>>>>>>> <mailto:steffan at hldns.com>> wrote:
>>>>>>>>>
>>>>>>>>>> dracut keeps stopping at “A start job is running for
>>>>>>>>>> dev-maps…\x2root.device (XXs / no limit)”
>>>>>>>>>>
>>>>>>>>>> A couple times I was able to hit the emergency shell still though, not
>>>>>>>>>> sure what to do from there.
>>>>>>>>>>
>>>>>>>>>> I’ve read up on this and everything says it’s an issue with initramfs.
>>>>>>>>>> I have redone it a few times now and no change.
>>>>>>>>>>
>>>>>>>>>> Bit of a problem. Have a dead host.
>>>>>>>>>>
>>>>>>>>>> Suggestions?
>>>>>>>>>>
>>>>>>>>>> Thank you,
>>>>>>>>>> Steffan Cline
>>>>>>>>>> 602-793-0014
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> From: <kernel-xen-bounces at lists.wireless.org.au
>>>>>>>>>> <mailto:kernel-xen-bounces at lists.wireless.org.au>> on behalf of
>>>>>>>>>> Steffan Cline <steffan at hldns.com <mailto:steffan at hldns.com>>
>>>>>>>>>> Reply-To: Xen Dom0 kernel for EL6 <kernel-xen at lists.wireless.org.au
>>>>>>>>>> <mailto:kernel-xen at lists.wireless.org.au>>
>>>>>>>>>> Date: Monday, December 28, 2015 at 12:01 AM
>>>>>>>>>> To: <kernel-xen at lists.wireless.org.au
>>>>>>>>>> <mailto:kernel-xen at lists.wireless.org.au>>
>>>>>>>>>> Subject: [kernel-xen] Xen 4.1 and latest CentOS 7.2.1511
>>>>>>>>>>
>>>>>>>>>> I was using the kernel-xen-4.1.15-2.el7xen.x86_64.rpm with CentOS 7
>>>>>>>>>> but after the update to 7.2.511 I can’t get past dracut.
>>>>>>>>>>
>>>>>>>>>> I have regenerated grub.cfg and the initramfs file but it still gets
>>>>>>>>>> stuck.
>>>>>>>>>>
>>>>>>>>>> I’ve reached the limits of my skill set. Anyone have any suggestions?
>>>>>>>>
>>>>>>>> --
>>>>>>>> Steven Haigh
>>>>>>>>
>>>>>>>> Email: netwiz at crc.id.au
>>>>>>>> Web: https://www.crc.id.au
>>>>>>>> Phone: (03) 9001 6090 - 0412 935 897
>>>>>>>>
>>>>>>>> _______________________________________________
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>>>>>>>> kernel-xen at lists.wireless.org.au
>>>>>>>> https://lists.wireless.org.au/mailman/listinfo/kernel-xen
>>>>>>>
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>>>>>
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