最好用友善之臂自带的源：
1 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to 2 # newer versions of the distribution. 3 4 deb http://ports.ubuntu.com/ubuntu-ports/ saucy main restricted 5 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy main restricted 6 7 ## Major bug fix updates produced after the final release of the 8 ## distribution. 9 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-updates main restricted 10 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-updates main restricted 11 12 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 13 ## team. Also, please note that software in universe WILL NOT receive any 14 ## review or updates from the Ubuntu security team. 15 deb http://ports.ubuntu.com/ubuntu-ports/ saucy universe 16 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy universe 17 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-updates universe 18 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-updates universe 19 20 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 21 ## team, and may not be under a free licence. Please satisfy yourself as to 22 ## your rights to use the software. Also, please note that software in 23 ## multiverse WILL NOT receive any review or updates from the Ubuntu 24 ## security team. 25 deb http://ports.ubuntu.com/ubuntu-ports/ saucy multiverse 26 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy multiverse 27 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-updates multiverse 28 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-updates multiverse 29 30 ## N.B. software from this repository may not have been tested as 31 ## extensively as that contained in the main release, although it includes 32 ## newer versions of some applications which may provide useful features. 33 ## Also, please note that software in backports WILL NOT receive any review 34 ## or updates from the Ubuntu security team. 35 # deb http://ports.ubuntu.com/ubuntu-ports/ quantal-backports main restricted universe multiverse 36 # deb-src http://ports.ubuntu.com/ubuntu-ports/ quantal-backports main restricted universe multiverse 37 38 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-security main restricted 39 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-security main restricted 40 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-security universe 41 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-security universe 42 deb http://ports.ubuntu.com/ubuntu-ports/ saucy-security multiverse 43 deb-src http://ports.ubuntu.com/ubuntu-ports/ saucy-security multiverse