Suse 11 sp1 kernel headers for EC2

[rictrendmicro]

Hi,

I'm trying to build a driver that is to be loaded in a Suse 11 SP1 EC2 instance. So far I have been unable to find the EC2 kernel headers in the repositories. Only the headers for the default kernel are available.

Does anyone know where or how I can find the EC2 kernel headers?

Thanks.

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[Björn Geuken]

On 03/01/2012 04:24 PM, [hidden email] wrote:
> Hi,
>
> I'm trying to build a driver that is to be loaded in a Suse 11 SP1 EC2 instance. So far I have been unable to find the EC2 kernel headers in the repositories. Only the headers for the default kernel are available.
>
> Does anyone know where or how I can find the EC2 kernel headers?
>
Hi,
have you tried the linux-kernel-headers pkg? I would expect that this
one works for all kernel flavours. If not, please let us know.

[rictrendmicro]

> > Hi,
> >
> > I'm trying to build a driver that is to be loaded in a Suse 11 SP1
> EC2 instance. So far I have been unable to find the EC2 kernel headers
> in the repositories. Only the headers for the default kernel are
> available.
> >
> > Does anyone know where or how I can find the EC2 kernel headers?
> >
> Hi,
> have you tried the linux-kernel-headers pkg? I would expect that this
> one works for all kernel flavours. If not, please let us know.

Yes, but the linux-kernel-headers package is only useful for building user space applications and not modules. To build modules I need access to the EC2 kernel source or a package that provides headers that can be used to build modules akin to the kernel-default-devel but for EC2.

I think I found a way to get the EC2 sources. This involves retrieving the source package for kernel-ec2. This source package seems to contain all the patches necessary to make a vanilla kernel into an EC2 kernel. Once the kernel-ec2 source and its dependencies such kernel-source are installed we can then point the module/driver to the new patched kernel source and build against it. I'm still working on this so I don't know if it will work.

Thanks for the help.
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[rictrendmicro]

Hi Christoph,

Thank you for the email. I've added the list to this email's CC since the answer may be useful to somebody else. See below.

> -----Original Message-----
>
> Hi Ricardo,
>
> On Thu, Mar 08, 2012 at 01:12:24PM +0100, bgeuken wrote:
> > -------- Original Message --------
> > Subject: RE: [studio-users] Suse 11 sp1 kernel headers for EC2
> > Date: Wed, 7 Mar 2012 23:05:59 +0000
> >
> > > >  Hi,
> > > >
> > > >  I'm trying to build a driver that is to be loaded in a Suse 11
> SP1
> > > EC2 instance. So far I have been unable to find the EC2 kernel
> headers
> > > in the repositories. Only the headers for the default kernel are
> > > available.
> > > >
> > > >  Does anyone know where or how I can find the EC2 kernel headers?
> > > >
> > > Hi,
> > > have you tried the linux-kernel-headers pkg? I would expect that
> this
> > > one works for all kernel flavours. If not, please let us know.
> >
> > Yes, but the linux-kernel-headers package is only useful for building
> user
> > space applications and not modules. To build modules I need access to
> the EC2
> > kernel source or a package that provides headers that can be used to
> build
> > modules akin to the kernel-default-devel but for EC2.
> >
> > I think I found a way to get the EC2 sources. This involves
> retrieving the
> > source package for kernel-ec2. This source package seems to contain
> all the
> > patches necessary to make a vanilla kernel into an EC2 kernel. Once
> the
> > kernel-ec2 source and its dependencies such kernel-source are
> installed we
> > can then point the module/driver to the new patched kernel source and
> build
> > against it. I'm still working on this so I don't know if it will
> work.
>
> I guess the package you are looking for is: kernel-ec2-devel?
>
>
> Best
> Christoph

Yes it is. The issue is that there's no package kernel-ec2-devel available for kernel 2.6.32.49-0.3-ec2 in the Amazon repositories and for that matter in any repository.

But I think I found a solution: build my own kernel-ec2-devel package. For that I had to retrieve the kernel-ec2 and kernel-source source RPMs and build those. When all is said and done, a bunch of RPMs will be placed in /usr/src/package/RPMS/<arch> including the kernel-ec2-devel RPM. I've posted the steps in the AWS forum as an answer to someone that had the same problem than me. The link to the thread is:

https://forums.aws.amazon.com/thread.jspa?threadID=74947

With kernel-ec2-devel RPM I am now able to build the driver against it. The driver was properly loaded into the EC2 instance and it's now being tested by QA. Note that the built kernel-source RPM is also needed. The one in the repository won't work due to a change in path because of a difference in version used (2.6.32.49-0.3 vs 2.6.32.49-0.3.1).

So I think this solves my problem and hopefully it will be useful to someone else. I guess I'll find soon enough if I overlook something and did all this work for nothing.

Cheers!
/ricardo

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[Christoph Thiel]

Hi Ricardo,

On Mon, Mar 12, 2012 at 04:58:17PM +0000, [hidden email] wrote:
> Thank you for the email. I've added the list to this email's CC since
> the answer may be useful to somebody else. See below.

[...]

> > I guess the package you are looking for is: kernel-ec2-devel?
> >
> >
> > Best
> > Christoph
>
> Yes it is. The issue is that there's no package kernel-ec2-devel
> available for kernel 2.6.32.49-0.3-ec2 in the Amazon repositories and
> for that matter in any repository.

kernel-ec2-devel indeed seems to be missing from the SP1 repositories in
EC2. It's available from the SP2 repos
(kernel-ec2-devel-3.0.13-0.27.1*.rpm) for SP2.

Will make sure that the next SP1 kernel update also releases the
kernel-ec2-devel to the SP1 channels.

> But I think I found a solution: build my own kernel-ec2-devel package.
> For that I had to retrieve the kernel-ec2 and kernel-source source
> RPMs and build those. When all is said and done, a bunch of RPMs will
> be placed in /usr/src/package/RPMS/<arch> including the
> kernel-ec2-devel RPM. I've posted the steps in the AWS forum as an
> answer to someone that had the same problem than me. The link to the
> thread is:
>
> https://forums.aws.amazon.com/thread.jspa?threadID=74947
>
> With kernel-ec2-devel RPM I am now able to build the driver against
> it. The driver was properly loaded into the EC2 instance and it's now
> being tested by QA. Note that the built kernel-source RPM is also
> needed. The one in the repository won't work due to a change in path
> because of a difference in version used (2.6.32.49-0.3 vs
> 2.6.32.49-0.3.1).
>
> So I think this solves my problem and hopefully it will be useful to
> someone else. I guess I'll find soon enough if I overlook something
> and did all this work for nothing.

Thanks!




Best
Christoph
--
Christoph Thiel, Project Manager, SUSE Cloud Infrastructure

SUSE LINUX Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)

[rictrendmicro]

> -----Original Message-----
> From: Christoph Thiel [mailto:[hidden email]]
>
> Hi Ricardo,
>
> On Mon, Mar 12, 2012 at 04:58:17PM +0000,
> [hidden email] wrote:
>
> [...]
>
> > > I guess the package you are looking for is: kernel-ec2-devel?
> > >
> > >
> > > Best
> > > Christoph
> >
> > Yes it is. The issue is that there's no package kernel-ec2-devel
> > available for kernel 2.6.32.49-0.3-ec2 in the Amazon repositories and
> > for that matter in any repository.
>
> kernel-ec2-devel indeed seems to be missing from the SP1 repositories
> in
> EC2. It's available from the SP2 repos
> (kernel-ec2-devel-3.0.13-0.27.1*.rpm) for SP2.
>
> Will make sure that the next SP1 kernel update also releases the
> kernel-ec2-devel to the SP1 channels.
>

Thanks a lot Christoph.

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