From: Rao Davide <davide.rao@atosorigin.com>
To: dl8bcu@dl8bcu.de, linux-kernel@vger.kernel.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru
Message-ID: <4264D77C.6010605@atosorigin.com>
Date: Tue, 19 Apr 2005 12:03:40 +0200
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Subject: Re: Linux Alpha port: LVM
References: <42569BC7.5030709@atosorigin.com> <20050408190709.GB27845@twiddle.net> <425A2442.8090607@atosorigin.com> <4263ACA9.4080507@atosorigin.com> <20050418195351.GA32124@Marvin.DL8BCU.ampr.org>
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>>Is LVM working on the alpha port 2.6 kernel series ?
>  
> works fine for me.

Are you using a redhat based distro (like suse, mandrake, alpha core or 
indeed redhat )?
Are you using stock kernel, libraries and tools or did you haveto build 
them yourself ?
Debian comes with LVM1 tools that do not work with 2.6 kernels so I need 
to compile them myself or install some ready build binary package for 
alpha processor and compatible with the libraries that come with debian3.
What alpha architecture are you running on ?


>>If so where do I get libdevmapper so that I can build the userspace LVM 
>>utils ?
>>
>>I tryied downloading 
>>ftp://sources.redhat.com/pub/dm/multipath-toolsmultipath-tools-0.4.3.tar.bz2
> 
> what do you think the 'dm' in that url stands for, hm?
> 
> 
>>But I fail to compile it so I'm also unable tu build the userspace lvm 
>>utils.
> 
> 
> 'userspace lvm utils' can be found here:
> 
> ftp://sources.redhat.com/pub/lvm2
> 
> multipath tools might be something different ... :)

It may also have something more but it has libdevmapper in it ...
In any case I also tried downloading and compiling 
device-mapper.1.00.07.tgz from the link in the LVM2.
It builds and installe fine but I still get compilation errore when I 
build LVM2.
Configute is fine, here are a few lines concerning libdevmapper

checking libdevmapper.h usability... yes
checking libdevmapper.h presence... yes
checking for libdevmapper.h... yes

but when I try to compile:

gcc -c -I. -I../include -DLVM1_INTERNAL -DPOOL_INTERNAL 
-DCLUSTER_LOCKING_INTERNAL -DSNAPSHOT_INTERNAL -DMIRRORED_INTERNAL 
-DDEVMAPPER_SUPPORT -DO_DIRECT_SUPPORT -DHAVE_LIBDL -DHAVE_GETOPTLONG 
-fPIC -Wall -Wundef -Wshadow -Wcast-align -Wwrite-strings 
-Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline 
-O2 cache/lvmcache.c -o cache/lvmcache.o
activate/activate.c: In function `target_present':
activate/activate.c:303: error: `DM_DEVICE_LIST_VERSIONS' undeclared 
(first use in this function)
activate/activate.c:303: error: (Each undeclared identifier is reported 
only once
activate/activate.c:303: error: for each function it appears in.)
activate/activate.c:314: warning: implicit declaration of function 
`dm_task_get_versions'
activate/activate.c:314: warning: nested extern declaration of 
`dm_task_get_versions'
activate/activate.c:314: warning: assignment makes pointer from integer 
without a cast
activate/activate.c:319: error: dereferencing pointer to incomplete type
...
same message repeated many times
...
make[1]: *** [activate/activate.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/usr/src/LVM2.2.01.09/lib'
make: *** [lib] Error 2

I'm using kernel 2.6.11.7 downloaded from kernel.org.
Here's the relevent section for raid/lvm in config:
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
CONFIG_MD_RAID5=y
# CONFIG_MD_RAID6 is not set
CONFIG_MD_MULTIPATH=y
CONFIG_MD_FAULTY=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_ZERO is not set

Do I need to patch kernel ?

> 
> 
>>--
>>Regards
>>Davide Rao
>>  Client/server Unix
>>  Atos Origin
>>  Via C.Viola - Pont St. Martin (AO) Italy
>>  Cell :  +39 3357599151
>>  Tel  :  +39 125810433
>>  Email:  davide.rao@atosorigin.com
> 
> 
> 
> 73 Thorsten
> 
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