Stateless Image

Stateless Image Construction

• Check OS Image definition:

  $ lsdef -t osimage rhels7.4-ppc64le-netboot-compute
  Object name: rhels7.4-ppc64le-netboot-compute
    exlist=/opt/xcat/share/xcat/netboot/rh/compute.rhels7.ppc64le.exlist
    imagetype=linux
    kitcomponents=
    osarch=ppc64le
    osdistroname=rhels7.4-ppc64le
    osname=Linux
    osvers=rhels7.4
    otherpkgdir=/install/post/otherpkgs/rhels7.4/ppc64le
    otherpkglist=/install/custom/install/rh/inter.rhels73.ppc64le.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_DEPLOY_PARAMS.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_COMPONENTS.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_RMPKGS.otherpkgs.pkglist
    partitionfile=/install/custom/install/rh/inter.rhels73.ppc64le.partition
    permission=755
    pkgdir=/install/rhels7.4/ppc64le
    pkglist=/opt/xcat/share/xcat/netboot/rh/compute.rhels7.ppc64le.pkglist,/install/custom/install/rh/inter.rhels73.ppc64le.pkglist
    postinstall=/opt/xcat/share/xcat/netboot/rh/compute.rhels7.ppc64le.postinstall
    profile=inter73
    provmethod=netboot
    rootimgdir=/install/netboot/rhels7.4/ppc64le/compute
    synclists=/install/custom/install/rh/inter.rhels73.ppc64le.synclist
    template=/install/custom/install/rh/inter.rhels73.ppc64le.tmpl
  

The pkglist attribute must contain the default xCAT Package List file. It can be complemented with additional Package Lists but must not be removed as it contains mandatory packages for image construction.

• Launch generation:

  $ genimage rhels7.4-ppc64le-netboot-inter
  Generating image:
  cd /opt/xcat/share/xcat/netboot/rh; ./genimage -a ppc64le -o rhels7.4 -p inter73 --permission 755 --srcdir "/install/rhels7.4/ppc64le" --pkglist /opt/xcat/share/xcat/netboot/rh/compute.rhels7.ppc64le.pkglist,/install/custom/install/rh/inter.rhels73.ppc64le.pkglist --otherpkgdir "/install/post/otherpkgs/rhels7.4/ppc64le" --otherpkglist /install/custom/install/rh/inter.rhels73.ppc64le.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_DEPLOY_PARAMS.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_COMPONENTS.otherpkgs.pkglist,/install/osimages/rhels7.4-ppc64le-netboot-inter/kits/KIT_RMPKGS.otherpkgs.pkglist --postinstall /opt/xcat/share/xcat/netboot/rh/compute.rhels7.ppc64le.postinstall --rootimgdir /install/netboot/rhels7.4/ppc64le/inter --tempfile /tmp/xcat_genimage.89510 rhels7.4-ppc64le-netboot-inter
  110 blocks
  /opt/xcat/share/xcat/netboot/rh
  110 blocks
  /opt/xcat/share/xcat/netboot/rh
  yum -y -c /tmp/genimage.89517.yum.conf --installroot=/install/netboot/rhels7.4/ppc64le/inter/rootimg/ --disablerepo=* --enablerepo=rhels7.4-ppc64le-0 --enablerepo=rhels7.4-ppc64le-1 --enablerepo=rhels7.4-ppc64le-2  install  bash nfs-utils openssl dhclient kernel openssh-server openssh-clients wget rsyslog vim-minimal ntp rsyslog rpm rsync ppc64-utils iputils dracut dracut-network e2fsprogs bc file lsvpd irqbalance procps-ng parted net-tools gzip tar xz grub2 grub2-tools bzip2 autoconf automake binutils-devel bison cmake ctags cvs dos2unix flex freetype-devel gdb libjpeg-turbo-devel libpng-devel libtool libxml2-devel openssl-devel qt-devel readline-devel patch perf strace tcl-devel valgrind zlib-devel bind bzip2 hwloc hwloc-libs ipmitool lshw net-tools nfs-utils net-snmp ntp numactl openssh-server psacct rsync tcl tcsh tk tree util-linux wget yp-tools ksh m4 gcc-c++ kernel-devel rpm-build openldap-clients sssd git subversion emacs nano vim freeglut mesa-libGLU qt-x11 vim-X11 xorg-x11-xauth xterm rsh rsh-server.ppc64le kernel pciutils lsof gcc-gfortran bind xinetd python-devel python-setuptools unzip "@infiniband" infiniband-diags perftest openmpi openmpi-devel libibverbs-devel
  [...]
  Enter the dracut mode. Dracut version: 033. Dracut directory: dracut_033.
  Try to load drivers: ext3 ext4 to initrd.
  chroot /install/netboot/rhels7.4/ppc64le/inter/rootimg dracut  -f /tmp/initrd.7321.gz 3.10.0-693.el7.ppc64le
  No '/dev/log' or 'logger' included for syslog logging
  Turning off host-only mode: '/sys' is not mounted!
  Turning off host-only mode: '/proc' is not mounted!
  Turning off host-only mode: '/run' is not mounted!
  Turning off host-only mode: '/dev' is not mounted!
  the initial ramdisk for stateless is generated successfully.
  Try to load drivers: ext3 ext4 to initrd.
  chroot /install/netboot/rhels7.4/ppc64le/inter/rootimg dracut  -f /tmp/initrd.7321.gz 3.10.0-693.el7.ppc64le
  No '/dev/log' or 'logger' included for syslog logging
  Turning off host-only mode: '/sys' is not mounted!
  Turning off host-only mode: '/proc' is not mounted!
  Turning off host-only mode: '/run' is not mounted!
  Turning off host-only mode: '/dev' is not mounted!
  the initial ramdisk for statelite is generated successfully.
  

  The location of the generation directory is: /install/netboot/rhels7.4/ppc64le/compute The generation directory should have the following content at this stage:

  $ ls /install/netboot/rhels7.4/ppc64le/compute/
  initrd-stateless.gz  initrd-statelite.gz  kernel  rootimg
  

• Pack image into ramdisk file:

  $ packimage rhels7.4-ppc64le-netboot-inter
  Packing contents of /install/netboot/rhels7.4/ppc64le/inter/rootimg
  archive method:cpio
  compress method:gzip
  

  The generated ramdisk file is located in: /install/netboot/rhels7.4/ppc64le/inter/rootimg.cpio.gz