所以我试图在 Ubuntu 14.04.2 上重新安装 MySQL 5.6，出于某种原因，它试图删除所需的软件包，而不是首先抱怨一些未满足的依赖关系。这是发生的事情：
pedro@hope:~$ sudo apt-get install mysql-server-5.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
mysql-server-5.6 : Depends: mysql-client-5.6 (>= 5.6.19-0ubuntu0.14.04.1) but it is not going to be installed
Depends: mysql-server-core-5.6 (= 5.6.19-0ubuntu0.14.04.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
pedro@hope:~$ sudo apt-get install mysql-client-5.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
mysql-client-5.6 : Depends: mysql-client-core-5.6 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
pedro@hope:~$ sudo apt-get install mysql-client-core-5.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
acl advancecomp amor analitza-common ark astrometry.net audiocd-kio
avogadro-data blinken bomber bovo cantor cantor-backend-kalgebra cervisia
chemical-mime-data dirmngr dnsmasq-base docbook-to-man dragonplayer edict
filelight fonts-dustin freerdp-x11 freespacenotifier gnugo granatier
gwenview iputils-arping juk kaccessible kalgebra kalgebra-common kalzium
kalzium-data kamera kanagram kanjidic kapman kapptemplate kate katomic
kblackbox kblocks kbounce kbreakout kbruch kcachegrind kcalc kcharselect
kcolorchooser kcron kde-artwork-active kde-base-artwork kde-baseapps
kde-config-cddb kde-config-cron kde-icons-mono kde-style-oxygen
kde-wallpapers kde-wallpapers-default kde-window-manager
kde-window-manager-common kde-workspace-data kde-workspace-kgreet-plugins
kde-zeroconf kdeaccessibility kdeadmin kdeartwork-emoticons kdeartwork-style
kdeartwork-theme-window kdeedu kdeedu-kvtml-data kdegames-card-data
kdegames-data kdegames-mahjongg-data kdegraphics kdegraphics-mobipocket
kdegraphics-strigi-analyzer kdegraphics-thumbnailers kdemultimedia
kdenetwork-filesharing kdenetwork-strigi-analyzers kdepasswd
kdepimlibs-kio-plugins kdesdk kdesdk-kio-plugins kdesdk-misc kdesdk-scripts
kdesdk-strigi-plugins kdesdk-thumbnailers kdetoys kdewallpapers kdf kdiamond
kdm kfilereplace kfourinline kgamma kgeography kgeography-data kget
kgoldrunner khangman khelpcenter4 kig kigo killbots kimagemapeditor
kinfocenter kio-audiocd kiriki kiten kjumpingcube klettres klettres-data
klickety klines klipper kmag kmahjongg kmenuedit kmines kmix kmousetool
kmplot kmtrace knavalbattle knetwalk kolf kollision kolourpaint4 kommander
kompare konquest kpartloader kpat krdc kremotecontrol kreversi krfb
krosspython kruler ksaneplugin kscd kshisen ksirk ksnakeduel ksnapshot
kspaceduel ksplash-theme-active ksquares kstars kstars-data ksudoku
ksysguard ksysguardd ksystemlog kteatime ktimer ktimetracker ktouch
ktouch-data ktuberling kturtle ktux kubrick kuiviewer kuser kwalletmanager
kwordquiz kwrite libaccounts-glib0 libaccounts-qt1 libakonadi-calendar4
libakonadi-contact4 libakonadi-kabc4 libakonadi-kcal4 libakonadi-kde4
libakonadi-kmime4 libakonadi-notes4 libakonadi-socialutils4
libakonadiprotocolinternals1 libanalitza5abi1 libanalitzagui5abi1
libanalitzaplot5abi1 libao-common libao4 libapr1 libaprutil1 libastro1
libavogadro1 libbaloopim4 libblas3 libbluetooth3
libboost-program-options1.54.0 libboost-python1.54.0 libboost-system1.54.0
libboost-thread1.54.0 libcfitsio3 libcln6 libcomposereditorng4
libdeclarative-multimedia libdiscid0 libdmtx0a libegl1-mesa
libegl1-mesa-drivers libelfg0 libexif12 libexttextcat-data
libfreerdp-plugins-standard libfreerdp1 libftdi1 libgadu3 libgbm1
libgfortran3 libgl2ps0 libglamor0 libgle3 libgles2-mesa libglew1.10
libglib2.0-bin libgpgme++2 libgpgme11 libgphoto2-6 libgphoto2-l10n
libgphoto2-port10 libgps20 libgrantlee-core0 libgrantlee-gui0 libgsl0ldbl
libical1 libieee1284-3 libindi-data libindi0c libindicate-qt1 libindicate5
libjs-jquery libjs-sphinxdoc libjs-underscore libkabc4 libkalarmcal2
libkasten2controllers2abi1 libkasten2core2 libkasten2gui2
libkasten2okteta1controllers1abi1 libkasten2okteta1core1
libkasten2okteta1gui1 libkateinterfaces4 libkblog4 libkcal4 libkcalcore4
libkcalutils4 libkcddb4 libkcompactdisc4 libkdcraw-data libkdcraw23
libkdecorations4abi1 libkdeedu-data libkdegames6 libkdgantt2-0
libkeduvocdocument4 libkephal4abi1 libkfbapi1 libkgapi2-2 libkholidays4
libkimap4 libkipi-data libkipi11 libkiten4abi1 libkldap4 libkleo4
libkmahjongglib4 libkmanagesieve4 libkmbox4 libkmime4 libknewstuff2-4
libkolab0 libkolabxml1 libkomparediff2-4 libkontactinterface4 libkpgp4
libkpimidentities4 libkpimtextedit4 libkpimutils4 libkresources4 libkrossui4
libksane-data libksane0 libkscreensaver5 libksgrd4 libksieve4
libksignalplotter4 libktnef4 libktorrent5 libkunitconversion4
libkwineffects1abi4 libkwinglesutils1 libkwinglutils1abi3 libkworkspace4abi2
liblapack3 liblightdm-gobject-1-0 liblightdm-qt-3-0 liblircclient0
libmailtransport4 libmarblewidget18 libmariadbclient18 libmbim-glib0
libmeanwhile1 libmediastreamer-base3 libmicroblog4 libmm-glib0 libmms0
libmnl0 libmodemmanagerqt1 libmsn0.3 libmtdev1 libmusicbrainz3-6
libmusicbrainz5-0 libneon27-gnutls libnepomukdatamodel0
libnetfilter-conntrack3 libnetworkmanagerqt1 libnm-glib-vpn1 libnm-glib4
libnm-util2 libnova-0.14-0 liboath0 libokteta1core1 libokteta1gui1
libopenal-data libopenal1 libopenbabel4 libopenconnect2 libopenvg1-mesa
libortp9 libotr5 libplasma-geolocation-interface4 libplasmaclock4abi4
libplasmagenericshell4 libprison0 libprocesscore4abi1 libprocessui4a
libqaccessibilityclient0 libqalculate5 libqalculate5-data libqextserialport1
libqgpgme1 libqhull6 libqmi-glib0 libqoauth1 libqrencode3 libqt4-help
libqt4-scripttools libqt4-test libqtassistantclient4 libqtlocation1
libqtmultimediakit1 libqtwebkit-qmlwebkitplugin libquazip0 libraw9 libsane
libsane-common libsendlater4 libsensors4 libserf-1-1 libshp1 libsignon-qt1
libsp1c2 libspandsp2 libspice-server1 libsrtp0 libsvn1 libswscale2
libsyndication4 libtaskmanager4abi5 libtelepathy-qt4-2 libupnp6
libvncserver0 libwayland-client0 libwayland-egl1-mesa libwayland-server0
libwcs4 libweather-ion6 libwlocate0 libxatracker2 libxcb-composite0
libxcb-damage0 libxcb-image0 libxcb-keysyms1 libxcb-xfixes0 libxcb-xtest0
libxerces-c3.1 libxkbfile1 libxklavier16 libxvmc1 lightdm
lightdm-kde-greeter lirc lokalize lskat marble marble-data marble-plugins
mariadb-common mobile-broadband-provider-info modemmanager
mysql-server-core-5.5 network-manager network-manager-pptp okteta optipng
oxygen-cursor-theme p7zip-full palapeli palapeli-data parley parley-data
picmi pkg-kde-tools plasma-active-data plasma-active-metadatamodels
plasma-active-mobilecomponents plasma-active-settings
plasma-active-webbrowser plasma-containments-addons
plasma-dataengines-addons plasma-desktopthemes-artwork plasma-nm
plasma-scriptengine-superkaramba plasma-widget-folderview
plasma-widget-message-indicator plasma-widget-networkmanagement
plasma-widgets-active poxml pptp-linux python-avogadro python-beautifulsoup
python-dateutil python-dbus python-dbus-dev python-enchant python-gi
python-iniparse python-levenshtein python-numpy python-pyfits python-qt4
python-qt4-sql python-simplejson python-sip python-utidylib python-vobject
qhull-bin qtdeclarative4-kqtquickcharts-1 rocs setserial share-like-connect
share-like-connect-data sp startactive-data step subversion svgpart sweeper
systemsettings texlive-latex-base texlive-latex-base-doc translate-toolkit
ttf-sjfonts umbrello unzip update-notifier-kde usb-modeswitch
usb-modeswitch-data valgrind vorbis-tools x11-xkb-utils xfonts-base
xscreensaver-data xscreensaver-data-extra xscreensaver-gl
xscreensaver-gl-extra xscreensaver-screensaver-bsod xserver-common
xserver-xorg xserver-xorg-core xserver-xorg-input-all
xserver-xorg-input-evdev xserver-xorg-input-mouse
xserver-xorg-input-synaptics xserver-xorg-input-vmmouse
xserver-xorg-input-wacom xserver-xorg-video-all xserver-xorg-video-ati
xserver-xorg-video-cirrus xserver-xorg-video-fbdev
xserver-xorg-video-glamoregl xserver-xorg-video-intel
xserver-xorg-video-mach64 xserver-xorg-video-mga
xserver-xorg-video-modesetting xserver-xorg-video-neomagic
xserver-xorg-video-nouveau xserver-xorg-video-openchrome
xserver-xorg-video-qxl xserver-xorg-video-r128 xserver-xorg-video-radeon
xserver-xorg-video-s3 xserver-xorg-video-savage
xserver-xorg-video-siliconmotion xserver-xorg-video-sis
xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-trident
xserver-xorg-video-vesa xserver-xorg-video-vmware zip
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
libqt4-declarative-gestures
The following packages will be REMOVED:
akonadi-backend-mysql akonadi-server akonadiconsole akregator blogilo
kaddressbook kajongg kalarm kde-config-pimactivity kde-full
kde-plasma-desktop kde-plasma-netbook kde-standard kde-workspace
kde-workspace-bin kdeartwork kdegames kdenetwork kdepim kdepim-kresources
kdepim-runtime kdeplasma-addons kdeutils kdewebdev kgpg kjots kleopatra
klinkstatus kmail knode knotes konsolekalendar kontact kopete
kopete-message-indicator korganizer kscreensaver kscreensaver-xsavers
libcalendarsupport4 libeventviews4 libincidenceeditorsng4 libkdepim4
libkdepimdbusinterfaces4 libkopete4 libksieveui4 libmailcommon4
libmailimporter4 libmessagecomposer4 libmessagecore4 libmessagelist4
libmessageviewer4 libnoteshared4 libpimactivity4 libpimcommon4
libtemplateparser4 mysql-client-core-5.5 plasma-dataengines-workspace
plasma-desktop plasma-netbook plasma-runners-addons plasma-wallpapers-addons
plasma-widget-lancelot plasma-widgets-addons plasma-widgets-workspace
python-kde4
The following NEW packages will be installed:
libqt4-declarative-gestures mysql-client-core-5.6
0 upgraded, 2 newly installed, 65 to remove and 0 not upgraded.
Need to get 4,102 kB of archives.
After this operation, 125 MB disk space will be freed.
Do you want to continue? [Y/n] n
Abort.
一些额外的信息，以防有帮助：
pedro@hope:~$ uname -a
Linux hope 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
KDE SC Version: 4.13.2
我错过了什么吗？这发生在存储库中现有的 MySQL 5.6 版本和 ppa:ondrej/mysql-5.6 中的版本中。我也跟着这个教程，但结果是一样的（试图删除必要的包）。