Re: [xcat-user] Building diskless image with different kernel version

Thu, 19 Mar 2015 14:11:12 -0700 

Hi Ling,
Just wanted to check in and see if any further troubleshooting has taken place on this issue? I'm still facing it and haven't been able to resolve it :( 



On 3/11/2015 2:46 PM, Russell Jones wrote:


Hi Ling,

That's strange that you can't reproduce it!


The boot directory doesn't exist. Here's an ls of the rootimg 
directory tree:


[root@evxcat v6.6.0-dl-genesisbuild]# pwd
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild


[root@evxcat v6.6.0-dl-genesisbuild]# ll -R
.:
total 4
drwxr-xr-x 4 root root 4096 Mar 10 14:38 rootimg

./rootimg:
total 8
drwxr-xr-x 2 root root 4096 Mar 10 14:38 etc
drwxr-xr-x 3 root root 4096 Mar 10 14:38 var

./rootimg/etc:
total 4
-rw-r--r-- 1 root root 351 Mar 10 14:39 fstab
-rw-r--r-- 1 root root 0 Mar 10 14:39 passwd
-rw-r--r-- 1 root root 39 Mar 10 14:39 resolv.conf
-rw-r--r-- 1 root root 24 Mar 10 14:39 securetty

./rootimg/var:
total 4
drwxr-xr-x 3 root root 4096 Mar 10 14:38 lib

./rootimg/var/lib:
total 4
drwxr-xr-x 2 root root 4096 Mar 10 14:38 yum

./rootimg/var/lib/yum:
total 0
[root@evxcat v6.6.0-dl-genesisbuild]#

On 11.03.2015 14:26, Ling Gao wrote:


Hmm, I cannot reproduce the problem.  What files are  under 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/boot?



I only saw "couldn't find the kernel file" error before I did 
createrepo under /install/kernels/<ver> directory.


Ling


Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: ling...@us.ibm.com, 845-433-5692


"I never worry about the future. It comes soon enough." --- Albert 
Einstein




From: Russell Jones <russell-l...@jonesmail.me>
To: xcat-user@lists.sourceforge.net
Date: 03/11/2015 12:25 PM

Subject: Re: [xcat-user] Building diskless image with different       
 kernel        version

------------------------------------------------------------------------



2.9

On 3/11/2015 10:29 AM, Ling Gao wrote:
Russel,
    What version of xCAT are you using?

Ling


Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: ling...@us.ibm.com <mailto:ling...@us.ibm.com>, 845-433-5692


"I never worry about the future. It comes soon enough." --- Albert 
Einstein





From: Russell Jones <russell-l...@jonesmail.me> 
<mailto:russell-l...@jonesmail.me>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net> 
<mailto:xcat-user@lists.sourceforge.net>

Date: 03/10/2015 03:47 PM

Subject: Re: [xcat-user] Building diskless image with different 
kernel        version

------------------------------------------------------------------------



Thanks Ling,


I have followed these instructions exactly for RHEL and it does not 
work for me. It ends with the errors I posted before. Here are some 
lsdef information. Any further assistance is appreciated!



[root@evxcat 2.6.32-431.el6.x86_64]# lsdef -t osimage 
v6.6.0-dl-genesisbuild

Object name: v6.6.0-dl-genesisbuild
groups=all
imagetype=linux
kerneldir=/install/kernels
kernelver=2.6.32-431.el6.x86_64
nodebootif=eth0
osarch=x86_64
osdistroname=centos6.6-x86_64
osname=Linux
osvers=centos6.6
permission=755
pkgdir=/install/centos6.6/x86_64
pkglist=/install/custom/v6.6.0-dl-genesisbuild/v6.6.0-dl-genesisbuild.pkglist
postscripts=syslog,confignics,syncfiles,setupntp,addsiteyum
profile=v6.6.0-dl-genesisbuild
provmethod=netboot
rootimgdir=/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild

[root@evxcat 2.6.32-431.el6.x86_64]# ll -R /install/kernels
/install/kernels:
total 4
drwxr-xr-x 3 root root 4096 Mar 10 14:34 2.6.32-431.el6.x86_64

/install/kernels/2.6.32-431.el6.x86_64:
total 82192

-rw-r--r-- 1 root root 29038424 Feb 10 16:18 
kernel-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root 2235524 Feb 10 16:18 
kernel-abi-whitelists-2.6.32-431.el6.noarch.rpm
-rw-r--r-- 1 root root 29750344 Feb 10 16:18 
kernel-debug-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root 9167492 Feb 10 16:18 
kernel-devel-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root 13601072 Feb 10 16:18 
kernel-firmware-2.6.32-431.el6.noarch.rpm

drwxr-xr-x 2 root root 4096 Mar 10 14:34 repodata

/install/kernels/2.6.32-431.el6.x86_64/repodata:
total 1116

-rw-r--r-- 1 root root 5472 Mar 10 14:34 
28fd032f735b6b7d16a35fc9f592776468815fc3eff3b16392ed07f0c49406e3-other.xml.gz
-rw-r--r-- 1 root root 296092 Mar 10 14:34 
6c1a302abae7e1a84dd2e2718e67302410ec4a6c8c85435b4387115981ef42e3-primary.xml.gz
-rw-r--r-- 1 root root 569749 Mar 10 14:34 
a56c6abff1536e4d57feeeb237c34151f48b1eb55f7cad94248f8ed5e6aa9a3c-primary.sqlite.bz2
-rw-r--r-- 1 root root 9079 Mar 10 14:34 
b8f9a96a768b14e978c7693d7b983c9f407b84d3fbb616cd15466947102178ac-other.sqlite.bz2
-rw-r--r-- 1 root root 89899 Mar 10 14:34 
c71a142e7d36ab00df76aac61d41b577914d8dc5611503c3b36b94078aae5805-filelists.xml.gz
-rw-r--r-- 1 root root 135383 Mar 10 14:34 
f10ad0b736c8e5c37824d1a30fa0072e6e1509b64fbd333c78b5876e97cb0d37-filelists.sqlite.bz2

-rw-r--r-- 1 root root 2998 Mar 10 14:34 repomd.xml


[root@evxcat 2.6.32-431.el6.x86_64]# genimage v6.6.0-dl-genesisbuild 
-k 2.6.32-431.el6.x86_64

Generating image:

cd /opt/xcat/share/xcat/netboot/centos; ./genimage -a x86_64 -o 
centos6.6 -p v6.6.0-dl-genesisbuild -i eth0 -k 2.6.32-431.el6.x86_64 
--permission 755 --kerneldir /install/kernels --srcdir 
/install/centos6.6/x86_64 --pkglist 
/install/custom/v6.6.0-dl-genesisbuild/v6.6.0-dl-genesisbuild.pkglist 
--rootimgdir /install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild 
--tempfile /tmp/xcat_genimage.19121 --noupdate 1 v6.6.0-dl-genesisbuild
mknod: 
`/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/dev/null': 
No such file or directory
sh: line 0: cd: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/etc/rc3.d: 
No such file or directory
sh: line 0: cd: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/etc/rc3.d: 
No such file or directory
sh: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/sbin/fsck.nfs: 
No such file or directory
chmod: cannot access 
`/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/sbin/fsck.nfs': 
No such file or directory

chroot: failed to run command `rpm': No such file or directory
chroot: failed to run command `rpm': No such file or directory

couldn't find the kernel file matched 2.6.32-431.el6.x86_64 in 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/boot 
at ./genimage line 72.


On 11.02.2015 13:41, Ling Gao wrote:
Russell,

   Here is the instruction: 
http://sourceforge.net/p/xcat/wiki/Using_Provmethod%3Dosimagename/#installing-a-new-kernel-in-the-stateless-image



The files under boot are from the kernel rpm. So please follow the 
instruction to make sure that the kernel rpm gets installed in the 
image.


Thanks,

Ling


Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: ling...@us.ibm.com <mailto:ling...@us.ibm.com>, 845-433-5692


"I never worry about the future. It comes soon enough." --- Albert 
Einstein





From: Russell Jones <russell-l...@jonesmail.me> 
<mailto:russell-l...@jonesmail.me>
To: xcat-user@lists.sourceforge.net 
<mailto:xcat-user@lists.sourceforge.net>

Date: 02/11/2015 11:18 AM

Subject: Re: [xcat-user] Building diskless image with different 
kernel        version


------------------------------------------------------------------------




For clarification, this is of course after trying to place the 
kernels RPMs and the kernel itself in 
"/install/custom/v6.6.0-dl-genesisbuild/kernel" since I tried 
defining that path in my osimage definition.


On 2/11/2015 9:46 AM, Russell Jones wrote:
It is empty, there's no boot directory.


I guess my real question is, what is the correct procedure for 
building a stateless image with a different kernel for CentOS 6? I 
have tried placing the kernel itself in /install/kernels/$kernel-ver, 
as well as a repo of the kernel RPMs and both do not work. Do I need 
to make the boot directory itself in the $rootimg_dir and place the 
kernels there?


Thanks!


On 2/11/2015 8:43 AM, Ling Gao wrote:
Hi Russell,
   It looks like it failed at these lines of code in genimage:

# copy the kernel to $destdir
if ( -e "$rootimg_dir/boot/vmlinux-$kernelver") {
   cp("$rootimg_dir/boot/vmlinux-$kernelver", "$destdir/kernel");
} elsif ( -e "$rootimg_dir/boot/vmlinuz-$kernelver") {
   cp("$rootimg_dir/boot/vmlinuz-$kernelver", "$destdir/kernel");
} elsif ( -e "$rootimg_dir/boot/image-$kernelver") {
   cp("$rootimg_dir/boot/image-$kernelver", "$destdir/kernel");
} else {

   xdie("couldn't find the kernel file matched $kernelver in 
$rootimg_dir/boot");

}


What are the files under 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimage/boot 
firectory?

The code is looking for something like
vmlinux-2.6.32-431.el6.x86_64 or
vmlinuz-2.6.32-431.el6.x86_64 or
image-2.6.32-431.el6.x86_64.

Hope it helps,


Ling

Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: ling...@us.ibm.com <mailto:ling...@us.ibm.com>, 845-433-5692


"I never worry about the future. It comes soon enough." --- Albert 
Einstein





From: Russell Jones <russell-l...@jonesmail.me> 
<mailto:russell-l...@jonesmail.me>
To: <xcat-user@lists.sourceforge.net> 
<mailto:xcat-user@lists.sourceforge.net>

Date: 02/10/2015 05:09 PM

Subject: [xcat-user] Building diskless image with different kernel 
version

------------------------------------------------------------------------



Hi all,

I am attempting to build a diskless image with a different kernel 
version, but not having much luck. I am getting the following error:


[root@evxcat kernel]# genimage v6.6.0-dl-genesisbuild
Generating image:

cd /opt/xcat/share/xcat/netboot/centos; ./genimage -a x86_64 -o 
centos6.6 -p v6.6.0-dl-genesisbuild -i eth0 -k 2.6.32-431.el6.x86_64 
--permission 755 --kerneldir 
/install/custom/v6.6.0-dl-genesisbuild/kernel --srcdir 
/install/centos6.6/x86_64 --pkglist 
/install/custom/v6.6.0-dl-genesisbuild/v6.6.0-dl-genesisbuild.pkglist 
--rootimgdir /install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild 
--tempfile /tmp/xcat_genimage.31434 --noupdate 1 v6.6.0-dl-genesisbuild
mknod: 
`/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/dev/null': 
No such file or directory
sh: line 0: cd: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/etc/rc3.d: 
No such file or directory
sh: line 0: cd: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/etc/rc3.d: 
No such file or directory
sh: 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/sbin/fsck.nfs: 
No such file or directory
chmod: cannot access 
`/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/sbin/fsck.nfs': 
No such file or directory

chroot: failed to run command `rpm': No such file or directory
chroot: failed to run command `rpm': No such file or directory

couldn't find the kernel file matched 2.6.32-431.el6.x86_64 in 
/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild/rootimg/boot 
at ./genimage line 72.


[root@evxcat kernel]# lsdef -t osimage v6.6.0-dl-genesisbuild
Object name: v6.6.0-dl-genesisbuild
  groups=all
  imagetype=linux
  kerneldir=/install/custom/v6.6.0-dl-genesisbuild/kernel
  kernelver=2.6.32-431.el6.x86_64
  nodebootif=eth0
  osarch=x86_64
  osdistroname=centos6.6-x86_64
  osname=Linux
  osvers=centos6.6
  permission=755
  pkgdir=/install/centos6.6/x86_64
pkglist=/install/custom/v6.6.0-dl-genesisbuild/v6.6.0-dl-genesisbuild.pkglist
postscripts=syslog,confignics,syncfiles,setupntp,addsiteyum
  profile=v6.6.0-dl-genesisbuild
  provmethod=netboot
rootimgdir=/install/netboot/centos6.6/x86_64/v6.6.0-dl-genesisbuild

[root@evxcat kernel]# ll /install/custom/v6.6.0-dl-genesisbuild/kernel
total 81844

-rw-r--r-- 1 root root 29038424 Feb 10 15:49 
kernel-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root  2235524 Feb 10 15:49 
kernel-abi-whitelists-2.6.32-431.el6.noarch.rpm
-rw-r--r-- 1 root root 29750344 Feb 10 15:49 
kernel-debug-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root  9167492 Feb 10 15:49 
kernel-devel-2.6.32-431.el6.x86_64.rpm
-rw-r--r-- 1 root root 13601072 Feb 10 15:49 
kernel-firmware-2.6.32-431.el6.noarch.rpm

drwxr-xr-x 2 root root     4096 Feb 10 15:49 repodata

Any idea what's bombing here? The errors make no sense.

Thanks!

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