I can't install these packages using yast2

English Hardware
#1

linux-2r59:~ # yast2 -i elfutils-libelf
linux-2r59:~ # yast2 -i glibc-common
linux-2r59:~ # yast2 -i glibc-headers
linux-2r59:~ # yast2 -i libgcc
linux-2r59:~ # yast2 -i libstdc++
linux-2r59:~ # yast2 -i compat-libstdc++

always got below errors:

Following packages haven’t been found on the medium:
compat-libstdc++

Following packages haven’t been found on the medium:
glibc-common

http://pic.yupoo.com/hoohoobjj/489109a92ea4/fcjg0g9j.png

#2

Try disabling the DVD repo

#3

after disable the DVD repo, same thing>:(

#4

by the way, I can install other packages successfully using yast2