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#1 2009-02-05 12:28:44

rafiu
Moderator
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New unified Xen Kernel (2.6.27.10)

Previous releases of Openfiler made use of different versions of the kernel for the general and Xen images. This was because Xen patches had to be forward ported (by the esteemed guys at Fedora) and due to the effort involved, the patched Xen kernels were always a couple of releases behind.

We're now at a point where we can hopefully use a unified / converged kernel so that users of Xen images don't have to look on in envy at their upstream-hogging brethren.

There's a test kernel available here:

conary update kernel=@ofns:2-testkernel (version is 2.6.27.10)

We'd appreciate feedback on how/whether this works for you.

Thanks

R.

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#2 2009-02-06 00:37:49

sthiltenkamp
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Re: New unified Xen Kernel (2.6.27.10)

Outstanding!! I have just returned to the forum after quite a long work-induced absence. My last status was that I might have to give up XEN and move to something else (with OpenFiler being my main virtual appliance).

This is good news!

Backing up data now - new kernel here I come!

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#3 2009-02-08 09:42:01

pashaSuse
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Re: New unified Xen Kernel (2.6.27.10)

Hi Rafiu,

Thanks so much for your work getting this unified kernel done. I am having issues booting it though, I keep getting: Error: (2, 'Invalid kernel', 'xc_dom_find_loader: no loader found\n')

I did a bit of reading on that and it seems that happens when it has issues reading vmlinux for whatever reason. I am not a huge expert when it comes to kernels and the whole process so I am not sure what to try. I will do some more research meanwhile to see if I can get around that problem. Meantime if you have any ideas that would be great too!

Take care

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#4 2009-02-08 11:16:40

rafiu
Moderator
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Re: New unified Xen Kernel (2.6.27.10)

pashaSuse wrote:

Hi Rafiu,

Thanks so much for your work getting this unified kernel done. I am having issues booting it though, I keep getting: Error: (2, 'Invalid kernel', 'xc_dom_find_loader: no loader found\n')

I did a bit of reading on that and it seems that happens when it has issues reading vmlinux for whatever reason. I am not a huge expert when it comes to kernels and the whole process so I am not sure what to try. I will do some more research meanwhile to see if I can get around that problem. Meantime if you have any ideas that would be great too!

Take care

OK, there's no vmlinux so that won't work. It's a unified kernel so there's only one compressed (bzImage) file. Does your CPU have virtualization support (VT/AMD-V) ?

R.

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#5 2009-02-08 17:12:58

pashaSuse
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Re: New unified Xen Kernel (2.6.27.10)

I am pretty sure that it does, it is a core Duo 8400 I believe. I will double check though. The compressed image is it vmlinuz-xx? It virtually has all the same files that my x.21. kernel has and I have it configured to boot the same way with the exception that it throws that error when I point my config file to the new kernel and new ramdisk. If this is an issue of me simply being too ignorant to know what a "unified" kernel is and how it works, I am more than willing to do some research, just point me in the right direction (an article, howto, etc) and I will figure it out.

Peace

Paul

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#6 2009-02-08 17:20:47

pashaSuse
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Re: New unified Xen Kernel (2.6.27.10)

If my memory serves me correctly you can not run fully virtualized systems (only para-virtualized) if your cpu does not have the virtualization support, and one of my guests is a winXP workstation.

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#7 2009-02-08 17:31:31

rafiu
Moderator
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Re: New unified Xen Kernel (2.6.27.10)

pashaSuse wrote:

I am pretty sure that it does, it is a core Duo 8400 I believe. I will double check though. The compressed image is it vmlinuz-xx? It virtually has all the same files that my x.21. kernel has and I have it configured to boot the same way with the exception that it throws that error when I point my config file to the new kernel and new ramdisk. If this is an issue of me simply being too ignorant to know what a "unified" kernel is and how it works, I am more than willing to do some research, just point me in the right direction (an article, howto, etc) and I will figure it out.

Peace

Paul

You need xenner to boot this kernel. Which is why I asked about VT CPU. You should be good to go with your CPU, so find out about xenner for opensuse (I'm assuming that's what you're running). Shouldn't be more than a bit of a hop and skip to get this going (fingers crossed).

R.

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#8 2009-02-16 08:48:35

terrywong
Member
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Re: New unified Xen Kernel (2.6.27.10)

this kernel seems to have older e1000/e1000e driver? seems causing problem on intel S3210SHLC board which consist 82541GI & 82566DM-2 onboard gigabit controller, revert back to 2.6.26.8-1.0.11 the network work again.

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#9 2009-02-16 14:15:08

rafiu
Moderator
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Re: New unified Xen Kernel (2.6.27.10)

terrywong wrote:

this kernel seems to have older e1000/e1000e driver? seems causing problem on intel S3210SHLC board which consist 82541GI & 82566DM-2 onboard gigabit controller, revert back to 2.6.26.8-1.0.11 the network work again.

Thanks for reporting. Will look into it.

R.

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#10 2010-03-05 02:28:32

sthiltenkamp
Member
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Re: New unified Xen Kernel (2.6.27.10)

I am quite a bit later than anticipated on this (birth of son consumes time...) I did the backup after my last post but then things took a life of their own.

I just did try the testkernel and it won't boot for me in a domU... still sorting out the intricacies of pyGRUB and xen booting but I did notice that the architecture is i686 and other available architectures via conary include i[345]86 but no x86_64 which I happen to run on an Athlon X2.

Is Xen still being considered an option? Is the new kernel available (or will it be) for x86_64?

Has there been a merge towards a unified kernel as announced? Should I be getting another kernel?

Regards, Otto

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