Re: 2.4.32pre with Kernel 2.6.12?

Servus Peter,

> I don't use any kernel more recent than that (though perhaps I'll
> make an effort today to get a 2.6.12 kernel working on my smp 
> machine).

That'll be just sweet!

> BTW, is there a 2.6.12 kernel? Teh 2.6.11.* kernels had another
> number on!

Err, at least that's the one I downloaded from kernel.org some
moons ago.

Here's what I have done to get ENBD 2.4.32pre running on kernel
2.6.12:

1) tar xzvf enbd-2.4.32pre.tgz

2) cd nbd-2.4.32/
    cp ./kernel/linux-2.6.x/include/linux/*.h /usr/include/linux/

3) cd /usr/src/linux
   patch -p1 -i ~/nbd-2.4.32/kernel/patches/enbd-2.6.8.pat

4) One patch gets rejected, therefore I manually added this
   line to 'drivers/Makefile' (NOTE: It's 2 TABS in the middle!):

   obj-$(CONFIG_ENBD)        += block/enbd/

5) Then I did a menuconfig, went to Device Drivers => Block Devices,
   checked 'Enhanced network block device' and mark the two options
   below it as modules (<M>): 'Enhanced network block device 
   driver', 'Enhanced network block device remote ioctl support'.

6) Since this one failed to compile, I removed the 2nd arg
   of the funtion call to __invalidate_device. Edit this file:

   vi +3228 drivers/block/enbd/enbd_base.c

   Removes the ', 0', so that the line looks like so:

   __invalidate_device(lo->inode->i_bdev);

7) Then I compiled the new kernel and modules:

    make
    make modules_install

    Installed the new kernel.

8) Rebooted.

9) cd nbd-2.4.32/
   make config
   make         (=> yes, later on I used 'utils' as well ;-))
   cd nbd
   ./configure
   make
   cd ..
   make test    
   make install

'Make test' showed some errors at the very end of the tests (yes,
I know, but please read on), the initial tests of shoveling data
across client and server worked, however.

I was able to load the modules on both of my boxes, 'dmesg' shows
no errors.

Then I used 'enbd-server 1099 -i myfoo /dev/sda1' to export one of 
my partitions (tried a plain file later as well with same result),
which started up fine.

But when I used 'enbd-client 1099 -i myfoo /dev/nda' it spat out
a bunch of error messages (I am at work right now, have to test
at home tonight again), like 'Warning: only 0/1B read' and 
'Only half line read'. However, it always happened after negot.
the blocksize, which was transferred correctly, so it seems my 
installation is only partially broken (there's hope! ;-). Then 
the client retried a couple of times and finally gave up.

So did I... ;-)

Sorry for being unprecise; I just thought there could be a HOWTO
for 2.6.12. Will eb very precise from now on... promised! :-)

Cheers && Heaps of thanks for your help!

Holger

---- Original Message ----
From: [email protected]
To: [email protected]
Subject: Re: [ENBD] 2.4.32pre with Kernel 2.6.12?
Date: Wed, 20 Jul 2005 14:18:37 +0200 (MET DST)

>"Also sprach Holger (Woosh):"
>> I have spent today with the unsucessful attempt to get 2.4.32pre
>> up and running on a SMP system with kernel 2.6.12.
>
>You'll have to tell me what the problem is. Does the 2.6.8 patch not
>apply? 
>
>> Before I jump into greater detail and error messages,
>
>The detail is all that is needed :(.
>
>> I'd like
>> to learn whether some one out there has had more luck (or brains)
>
>It's not a question of luck, but of saying what you did, showing what
>the results are; the first error is all I need to see. When I see it
>I
>can tell you what the problem is. 
>
>> A short "Do this - Do not do that" post would be more than
>appreciated!
>
>There is no such thing, any more than there is a short do this do
>that
>method to winning a war. I would say
>
> "type 'make'"
>
>And let me know  what happens!
>
>Peter
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