Re: [Xen-API] compiling storage managers (sm) to support LVM SR on vanilla centos + xenapi

[Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>]

Hmm. No idea what your compilation error is, but it's in a bit that is only required for VSS snapshots (snapshot with quiesce) of windows VMs. You can ignore snapwatchd if you don't use that feature.

However, take care if you're using shared LVM - we have for a long time relied upon patches to LVM to work correctly, particularly in the shared SR case. There has been some work done recently to remove the need for these patches, but I don't know whether this has all been pushed yet.

Jon

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On 22 Aug 2013, at 09:35, "Sayid Munawar" <ayik@xxxxxxxxxxxxx> wrote:

Hi,

The situation here is that i have an old LSI (megasr) fakeraid card. it forced me to use kernel 2.6.32, because XCP/xenserver's default kernel can't detect my harddrive, even after i've compiled the driver using its DDK. 

so i have to build xenserver from scratch from vanilla centos 6 (ouch). i've managed to compile xen 4.2.2 (*1) and  xen-api using rpms built by xen-api-rpm-buildroot(*2)

the problem is, i think the LVM SR Driver is not compiled in. so, how to add them?  i found the its repo in https://github.com/xapi-project/sm, but as its readme said, it can't be compiled using "make && make install" as usual.

cc -O2 -I/usr/include/python2.6/ -I/usr/include -shared xslib.o xslib_wrap.o -lxenstore -o _xslib.so

/usr/bin/ld: xslib.o: relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC

xslib.o: could not read symbols: Bad value

collect2: ld returned 1 exit status

make[1]: *** [_xslib.so] Error 1

make[1]: Leaving directory `/home/ayik/sm/snapwatchd'

make: *** [install] Error 2

any clue how to compile xen-api SM ? and then of course how to configure it so that we can create LVM SR ?

*1) http://dev.centos.org/centos/6/xen-c6/SRPMS/

*2) https://github.com/xapi-project/xen-api-rpm-buildroot

PS:

just share some experience when building rpms from xen-api-rpm-buildroot:

1. the xen-ocaml* spec are overlapping with ocaml-xen-lowlevel-libs-* (plase see errors below). both are trying to install the same target

Transaction Check Error:

  file /usr/lib64/ocaml/xenstore/xenstore.a conflicts between attempted installs of ocaml-xenstore-devel-1.2.1-1.x86_64 and xen-ocaml-devel-4.2.2-23.el6.x86_64

  file /usr/lib64/ocaml/xenstore/xenstore.cmxa conflicts between attempted installs of ocaml-xenstore-devel-1.2.1-1.x86_64 and xen-ocaml-devel-4.2.2-23.el6.x86_64

2. there is some error when installing xenopsd-libvirt, but i don't know what the effect

  Installing : xenopsd-libvirt-0.9.21-1.x86_64                                                                                                                            125/261 

Non-fatal POSTIN scriptlet failure in rpm package xenopsd-libvirt-0.9.21-1.x86_64

error reading information on service xenopsd-libvirt: No such file or directory

warning: %post(xenopsd-libvirt-0.9.21-1.x86_64) scriptlet failed, exit status 1

-- 

Sayid Munawar

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