Вы предалашаете обновить систему и установить пакеты unrar и p7zip-full :
# sudo apt-get update && sudo apt-get install unrar p7zip-full
Ign http://extras.ubuntu.com utopic InRelease
Ign http://security.ubuntu.com utopic-security InRelease
Ign http://ppa.launchpad.net utopic InRelease
Ign http://ua.archive.ubuntu.com utopic InRelease
Hit http://extras.ubuntu.com utopic Release.gpg
Ign http://ua.archive.ubuntu.com utopic-updates InRelease
Get:1 http://security.ubuntu.com utopic-security Release.gpg [933 B]
Ign http://ppa.launchpad.net utopic InRelease
Ign http://ua.archive.ubuntu.com utopic-backports InRelease
Hit http://ua.archive.ubuntu.com utopic Release.gpg
Hit http://extras.ubuntu.com utopic Release
Hit http://ua.archive.ubuntu.com utopic-updates Release.gpg
Get:2 http://security.ubuntu.com utopic-security Release [63,5 kB]
Ign http://ppa.launchpad.net utopic InRelease
Hit http://ua.archive.ubuntu.com utopic-backports Release.gpg
Hit http://ua.archive.ubuntu.com utopic Release
Hit http://extras.ubuntu.com utopic/main Sources
Hit http://ua.archive.ubuntu.com utopic-updates Release
Hit http://ppa.launchpad.net utopic Release.gpg
Hit http://ua.archive.ubuntu.com utopic-backports Release
Hit http://extras.ubuntu.com utopic/main amd64 Packages
Hit http://ppa.launchpad.net utopic Release.gpg
Hit http://extras.ubuntu.com utopic/main i386 Packages
Ign http://ppa.launchpad.net utopic Release.gpg
Get:3 http://security.ubuntu.com utopic-security/main Sources [56,8 kB]
Hit http://ppa.launchpad.net utopic Release
Hit http://ppa.launchpad.net utopic Release
Ign http://ppa.launchpad.net utopic Release
Get:4 http://security.ubuntu.com utopic-security/restricted Sources [2 107 B]
Get:5 http://security.ubuntu.com utopic-security/universe Sources [14,6 kB]
Ign http://extras.ubuntu.com utopic/main Translation-en_US
Get:6 http://security.ubuntu.com utopic-security/multiverse Sources [2 385 B]
Ign http://extras.ubuntu.com utopic/main Translation-en
Get:7 http://security.ubuntu.com utopic-security/main amd64 Packages [184 kB]
Hit http://ua.archive.ubuntu.com utopic-backports/restricted Sources
Hit http://ua.archive.ubuntu.com utopic-backports/multiverse Sources
Hit http://ua.archive.ubuntu.com utopic-backports/restricted amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/multiverse amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/restricted i386 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/multiverse i386 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/multiverse Translation-en
Hit http://ppa.launchpad.net utopic/main amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/restricted Translation-en
Hit http://ua.archive.ubuntu.com utopic/main Sources
Hit http://ua.archive.ubuntu.com utopic/restricted Sources
Hit http://ppa.launchpad.net utopic/main i386 Packages
Hit http://ua.archive.ubuntu.com utopic/universe Sources
Get:8 http://security.ubuntu.com utopic-security/restricted amd64 Packages [8 496 B]
Hit http://ua.archive.ubuntu.com utopic/multiverse Sources
Hit http://ua.archive.ubuntu.com utopic/main amd64 Packages
Hit http://ppa.launchpad.net utopic/main Translation-en
Hit http://ua.archive.ubuntu.com utopic/restricted amd64 Packages
Get:9 http://security.ubuntu.com utopic-security/universe amd64 Packages [73,9 kB]
Hit http://ua.archive.ubuntu.com utopic/universe amd64 Packages
Hit http://ua.archive.ubuntu.com utopic/multiverse amd64 Packages
Hit http://ppa.launchpad.net utopic/main amd64 Packages
Hit http://ua.archive.ubuntu.com utopic/main i386 Packages
Hit http://ua.archive.ubuntu.com utopic/restricted i386 Packages
Hit http://ua.archive.ubuntu.com utopic/universe i386 Packages
Hit http://ppa.launchpad.net utopic/main i386 Packages
Hit http://ua.archive.ubuntu.com utopic/multiverse i386 Packages
Hit http://ua.archive.ubuntu.com utopic/main Translation-en
Hit http://ppa.launchpad.net utopic/main Translation-en
Hit http://ua.archive.ubuntu.com utopic/multiverse Translation-en
Get:10 http://security.ubuntu.com utopic-security/multiverse amd64 Packages [4 350 B]
Hit http://ua.archive.ubuntu.com utopic/restricted Translation-en
Hit http://ua.archive.ubuntu.com utopic/universe Translation-en
Hit http://ua.archive.ubuntu.com utopic-updates/main Sources
Get:11 http://security.ubuntu.com utopic-security/main i386 Packages [183 kB]
Hit http://ua.archive.ubuntu.com utopic-updates/restricted Sources
Hit http://ua.archive.ubuntu.com utopic-updates/universe Sources
Hit http://ua.archive.ubuntu.com utopic-updates/multiverse Sources
Hit http://ua.archive.ubuntu.com utopic-updates/main amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/restricted amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/universe amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/multiverse amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/main i386 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/restricted i386 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/universe i386 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/multiverse i386 Packages
Hit http://ua.archive.ubuntu.com utopic-updates/main Translation-en
Hit http://ua.archive.ubuntu.com utopic-updates/multiverse Translation-en
Hit http://ua.archive.ubuntu.com utopic-updates/restricted Translation-en
Hit http://ua.archive.ubuntu.com utopic-updates/universe Translation-en
Hit http://ua.archive.ubuntu.com utopic-backports/main Sources
Hit http://ua.archive.ubuntu.com utopic-backports/universe Sources
Hit http://ua.archive.ubuntu.com utopic-backports/main amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/universe amd64 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/main i386 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/universe i386 Packages
Hit http://ua.archive.ubuntu.com utopic-backports/main Translation-en
Hit http://ua.archive.ubuntu.com utopic-backports/universe Translation-en
Get:12 http://security.ubuntu.com utopic-security/restricted i386 Packages [8 438 B]
Get:13 http://security.ubuntu.com utopic-security/universe i386 Packages [73,8 kB]
Err http://ppa.launchpad.net utopic/main amd64 Packages
404 Not Found
Get:14 http://security.ubuntu.com utopic-security/multiverse i386 Packages [4 494 B]
Err http://ppa.launchpad.net utopic/main i386 Packages
404 Not Found
Ign http://ppa.launchpad.net utopic/main Translation-en_US
Ign http://ppa.launchpad.net utopic/main Translation-en
Hit http://security.ubuntu.com utopic-security/main Translation-en
Hit http://security.ubuntu.com utopic-security/multiverse Translation-en
Hit http://security.ubuntu.com utopic-security/restricted Translation-en
Hit http://security.ubuntu.com utopic-security/universe Translation-en
Fetched 681 kB in 3s (214 kB/s)
W: Failed to fetch http://ppa.launchpad.net/ondrej/php5-oldstable/ubuntu/dists/utopic/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/ondrej/php5-oldstable/ubuntu/dists/utopic/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Куча ошибок... Они критичны ?
Если запустить команду установки пакетов без обновления системы :
# apt-get install unrar p7zip-full
Reading package lists... Done
Building dependency tree
Reading state information... Done
p7zip-full is already the newest version.
unrar is already the newest version.
The following package was automatically installed and is no longer required:
gnome-power-manager
Use 'apt-get autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 22 not upgraded.
При попытке запустить peazip_5.6.0.LINUX.GTK2-2_all.deb та же ошибка...