Dear George, Very very thank you... --mohsen On Tue, 2012-10-09 at 04:35 +0400, George Machitidze wrote: > Hi > > > I don't think this is right place, the best you can do is check rpm > docs at rpm.org (very extensive docs a and books) > If you want to be a packager - you have to check Fedora packaging > guidelines: > http://fedoraproject.org/wiki/Packaging:Guidelines > > > But I'll answer you anyway: > > > At first, you have to understand and separate backend and frontend: > > > rpm, dpkg - package manager backends and libraries for operating on DB > populated with current situation, not the repos > yum, apt - package manager frontends with databases related to > repository and upgrade operations > > > Do not confuse yum/apt with rpm/dpkg. > > > RPM is using sqlite database populated in /var/lib/rpm/, you should > never operate on it directly. rpm, rpm libraries and yum utilities > provide interface for you to manage packages, there is no reason to > touch DB manually. > > > 1) RPM doesn't use plaintext database > 2) /var/cache/yum/ > 3) yum search MY_PACKAGE (will update cache), or yum search -C > MY_PACKAGE (run entirely from system cache, don't update cache) > 4) --skip-broken skips broken packages, dependencies are always solved > automatically > 5) yum update, usually cache is always update, unless -C is > specified. /var/lib/yum, /var/cache/yum > 6) yum doesn't operate on it's own configuration files, yum will need > to create repo file in /etc/yum/repos.d as xxx.repo like: > [somerepo] > name=cdrom files > baseurl=file:///mnt/cdrom > > 7) Doesn't need it actually, this is handled by rpm backend. rpm > leaves any changed (checked with md5) configuration files > with .rpmsave filename extension. rpm knows which files are > configuration files. > 8) yum whatprovides "/path/file" > 9) rpm -qa > > Best regards, > George Machitidze > > > On Tue, Oct 9, 2012 at 3:45 AM, Mohsen Pahlevanzadeh > <mohsen@xxxxxxxxxxxxxxxxx> wrote: > Dear all, > > I have more question on comparison of YUM and APT: > 1) in apt systems, /var/lib/dpkg/status exists and keeps > information > about installed packages such as marked as remove and etc, > what's its > equivalent in yum systems? > 2) in apt systems, /var/cache/apt/archives keeps *deb files > as > temporarily, What's its equivalent in yum systems? > 3) apt-cache command search on local cache about a package > such as > 'apt-cache search MY_PACKAGE', now can i do it with yum > systems? if true > which command? > 4) apt-get has -f (--fixed-broken), yum does has it? such as > 'apt-get -f > install' ? when you use 'apt-get -f install' or 'apt-get -f > dist-upgrade' APT system resolve installed packages and solve > any > problem. > 5) in apt systems at first we use 'apt-get update' to download > information of packages.Then they are cached > in /var/lib/apt/lists/ , > What's equivalent of apt-get update and /var/lib/apt/lists/ ? > 6) We use 'apt-cdrom add' to add cdrom repo to my machine, > What's its > equivalent in yum? > 7) --purge and -e is different in dpkg or apt-get purge or > apt-get > reomve, Do you have same concept in yum?(remove doesn't remove > information in status file, but purge remove them) > 8) we have apt-file command that it search on repo and get a > file as arg > and returns package names that arg exist in them.Do you have > in yum? > 9) /var/lib/dpkg/available : list of installed packages. > > > --thank you, > Mohsen > > > On Sat, 2012-10-06 at 06:54 -0500, Rex Dieter wrote: > > On 10/06/2012 12:40 AM, Mohsen Pahlevanzadeh wrote: > > > Dear Matthew and Christopher, > > > > > > At first, sorrry for late, and thank you for your reply > and your > > > attention. > > > In Debian systems: > > > Directory /var/lib/apt/ keeps cache of repos, then users > can search > > > offline with apt-cache search blahblah , What's this > scenario in yum > > > system? and Where the given directory ? > > > > /var/cache/yum > > > > Use > > yum -C > > or > > yum --cacheonly > > > > -- rex > > > > -- > > packaging mailing list > > packaging@xxxxxxxxxxxxxxxxxxxxxxx > > https://admin.fedoraproject.org/mailman/listinfo/packaging > > > -- > packaging mailing list > packaging@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/packaging > > > -- > packaging mailing list > packaging@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/packaging -- packaging mailing list packaging@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/packaging
