YUM

=====| CATATAN YUM 1 |======

Melihat fitur-fitur pada YUM
# yum
Loaded plugins: fastestmirror, langpacks, refresh-packagekit
You need to give some command
Usage: yum [options] COMMAND

List of Commands:

autoremove     Remove leaf packages
check          Check for problems in the rpmdb
check-update   Check for available package updates
clean          Remove cached data
deplist        List a package's dependencies
distribution-synchronization Synchronize installed packages to the latest available versions
downgrade      downgrade a package
erase          Remove a package or packages from your system
fs             Acts on the filesystem data of the host, mainly for removing docs/lanuages for minimal hosts.
fssnapshot     Creates filesystem snapshots, or lists/deletes current snapshots.
groups         Display, or use, the groups information
help           Display a helpful usage message
history        Display, or use, the transaction history
info           Display details about a package or group of packages
install        Install a package or packages on your system
langavailable  Check available languages
langinfo       List languages information
langinstall    Install appropriate language packs for a language
langlist       List installed languages
langremove     Remove installed language packs for a language
list           List a package or groups of packages
load-transaction load a saved transaction from filename
makecache      Generate the metadata cache
provides       Find what package provides the given value
reinstall      reinstall a package
repo-pkgs      Treat a repo. as a group of packages, so we can install/remove all of them
repolist       Display the configured software repositories
search         Search package details for the given string
shell          Run an interactive yum shell
swap           Simple way to swap packages, instead of using shell
update         Update a package or packages on your system
update-minimal Works like upgrade, but goes to the 'newest' package match which fixes a problem that affects your system
updateinfo     Acts on repository update information
upgrade        Update packages taking obsoletes into account
version        Display a version for the machine and/or available repos.

Update repo sekaligus paket-paket yang terpasang
# yum update

Update paket tertentu saja
# yum update namapaket

Update repo
# yum updateinfo

Instalasi paket tertentu beserta dependensinya
# yum install namapaket

Reinstal paket tertentu
# yum reinstall namapaket

Hapus paket tertentu
# yum remove
untuk menghapus paket-paket yang tidak butuhkan lagi
# yum autoremove

Melihat dependensi yang dibutuhkan oleh suatu paket. Dependensi
# yum deplist namapaket

=====| CATATAN YUM 2 |======

# yum install wine

Muncul error:
Error:  Multilib version problems found. This often means that the root
       cause is something else and multilib version checking is just
       pointing out that there is a problem. Eg.:

         1. You have an upgrade for libusbx which is missing some
            dependency that another package requires. Yum is trying to
            solve this by installing an older version of libusbx of the
            different architecture. If you exclude the bad architecture
            yum will tell you what the root cause is (which package
            requires what). You can try redoing the upgrade with
            --exclude libusbx.otherarch ... this should give you an error
            message showing the root cause of the problem.

         2. You have multiple architectures of libusbx installed, but
            yum can only see an upgrade for one of those architectures.
            If you don't want/need both architectures anymore then you
         can remove the one with the missing update and everything
            will work.

         3. You have duplicate versions of libusbx installed already.
            You can use "yum check" to get yum show these errors.

       ...you can also use --setopt=protected_multilib=false to remove
       this checking, however this is almost never the correct thing to
       do as something else is very likely to go wrong (often causing
       much more problems).

Paket yang bermasalah di sini adalah libusbx dan libvpx. Ini pertama kalinya saya bermasalah dengan hal seperti ini. Saya coba # yum autoremove kemudian # yum update, akan tetapi tetap saja tidak menyelesaikan masalah. Akhirnya saya mencoba perintah #yum untuk melihat menu-menu yang tersedia pada YUM.

Nah, saya tertarik dengan menu "distribution-synchronization". Menu ini berfungsi untuk melakukan sinkronisasi paket-paket yang dimiliki oleh Fedora ke server repo Fedora. Jadi, menu ini menjadikan isi Fedora yang kita miliki menjadi benar-benar Fedora (saya tidak tau mau bilang apa). Hasil setelah menjalankan #yum distribution-synchronization adalah:

    Downgrade  libusbx-1.0.19-1.fc20.x86_64            @updates
    Downgraded         1.0.19-100.rc2.fc20.x86_64      @fedora-chromium-stable
    Downgrade  libvpx-1.3.0-4.fc20.x86_64              @updates
    Downgraded        1.3.0-100.git8f850d6.fc20.x86_64 @fedora-chromium-stable
    Downgrade  libwebp-0.3.1-3.fc20.x86_64             @updates
    Downgraded         0.3.1-3.gitcc55790.fc20.x86_64  @fedora-chromium-stable

Ternyata adanya bentrok antara libusbx, libvpx, dan libwebp yang berada di repo fedora-chromium-stable dengan repo update. Akhirnya versi dari ketiga paket itu harus disesuaikan dengan versi yang ada di repo resmi fedora yaitu di repo updates. Instalasi wine menjadi lancar tanpa hambatan.