
Hi all!<br>  Becaule i heard that the apt was great,i wanted to try itAnd when i tried to update my system,the yum faid,i installed the apt which came from dag repo by yum. After that i did:sudo apt-get update and sudo apt-get upgrade.There are some problem and i did as apt suggested:sudo apt-get --fix-broken install.Then apt said should remove 11 softwares insclude yum.I thougt even i removed the yum,i could installed it by apt again,so i removed them.<br>  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.<br>   rpmforge.list:<br># Name: RPMforge RPM Repository for Red Hat Enterprise 5 - dag<br># URL: http://rpmforge.net/<br>#rpm http://apt.sw.be redhat/el$(VERSION)/en/$(ARCH) dag<br>repomd http://apt.sw.be redhat/el$(VERSION)/en/$(ARCH)/dag<br>repomd http://apt.sw.be redhat/el$(VERSION)/en/$(ARCH)/dag<br><br>os.list:<br># Name: Operating system and updates<br><br>### Red Hat Enterprise Linux<br>#repomd http://mirror.centos.org centos/$(VERSION)/os/$(ARCH)<br>#repomd http://mirror.centos.org centos/$(VERSION)/updates/$(ARCH)<br>#repomd http://mirror.centos.org centos/$(VERSION)/extras/$(ARCH)<br>#repomd http://mirror.centos.org centos/$(VERSION)/fasttrack/$(ARCH)<br>#repomd http://mrepo rhel$(VERSION)s-$(ARCH)/RPMS.os<br>#repomd http://mrepo rhel$(VERSION)s-$(ARCH)/RPMS.updates<br>#rpm http://mrepo rhel$(VERSION)s-$(ARCH) os updates<br><br>### Fedora Core Linux<br>#repomd http://ayo.freshrpms.net fedora/linux/$(VERSION)/$(ARCH)/core<br>#repomd http://ayo.freshrpms.net fedora/linux/$(VERSION)/$(ARCH)/updates<br>#rpm http://ayo.freshrpms.net fedora/linux/$(VERSION)/$(ARCH) core updates<br><br>### Red Hat Linux<br>#repomd http://ayo.freshrpms.net redhat/$(VERSION)/$(ARCH)/os<br>#repomd http://ayo.freshrpms.net redhat/$(VERSION)/$(ARCH)/updates<br>#rpm http://ayo.freshrpms.net redhat/$(VERSION)/$(ARCH) os updates<br><br>What should i do?<div> </div><br><!-- footer --><br> 

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