cjzjm100 wrote: > After that i found i could not use apt smooth,there were many > problem,so i want to install yum again.But apt couldn't find the yum > package. In /etc/apt/sources.list.d,there are two lists:rpmforge.list > and os.list. > os.list: uncomment these lines: > #repomd http://mirror.centos.org centos/$(VERSION)/os/$(ARCH) > #repomd http://mirror.centos.org centos/$(VERSION)/updates/$(ARCH) > #repomd http://mirror.centos.org centos/$(VERSION)/extras/$(ARCH) - KB