Ошибка при выполнении pre-oracle12c действий по установке

root@sreenivas-HP-250-G4-Notebook-PC:/app/oracle12c/product# apt-get install alien autoconf automake autotools-dev binutils doxygen \


elfutils expat gawk gcc gcc-multilib g++-multilib libstdc++6:i386 ksh less libtiff5 \
libtiff5-dev lib32z1 libaio1 libaio-dev libc6-dev libc6-dev-i386 libc6-i386 \
libelf-dev libltdl-dev libmotif4 libodbcinstq4-1 libodbcinstq4-1:i386 \
libpthread-stubs0 libpth-dev libstdc++5 lsb-cxx make \
pdksh openssh-server rlwrap rpm sysstat unixodbc unixodbc-dev x11-utils \
zlibc libglapi-mesa:i386 libglu1-mesa:i386 libqt4-opengl:i386 \
libpthread-workqueue0 libpthread-workqueue-dev libzthread-2.3-2 libzthread-dev \
libpthread-stubs0-dev libaio-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package pdksh is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package libmotif4 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libxm4:i386 libuil4:i386 libmrm4:i386 libxm4 libuil4 libmrm4 libmotif-common

E: Package 'libmotif4' has no installation candidate
E: Unable to locate package libpthread-stubs0
E: Unable to locate package lsb-cxx
E: Package 'pdksh' has no installation candidate
root@sreenivas-HP-250-G4-Notebook-PC:/app/oracle12c/product#

Моя система ноутбука является HP-250-G4-Notebook-PC intel i5, i386

Действительно ли эти пакеты являются устаревшими? Действительно ли какой-либо альтернативный пакет доступен раз так? Я могу проигнорировать эту ошибку и возобновить оракула 12c установка?