I compared sources.list from normal Ubuntu 17.10 installation and from MATE. They differ by 4 rows:
--- /etc/apt/sources.list +++ /media/mate1710/724aac41-cc95-44d2-993b-32b544ab9022/etc/apt/sources.list @@ -1,7 +1,4 @@ -# deb cdrom:[Ubuntu-MATE 17.10 _Artful Aardvark_ - Release i386 (20171018)]/ artful main multiverse restricted universe -deb http://archive.ubuntu.com/ubuntu/ artful main restricted universe multiverse -deb http://security.ubuntu.com/ubuntu/ artful-security main restricted universe multiverse -deb http://archive.ubuntu.com/ubuntu/ artful-updates main restricted universe multiverse +#deb cdrom:[Ubuntu 17.10 _Artful Aardvark_ - Release amd64 (20171018)]/ artful main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution.
So it seems to be MATE community fault.
I compared sources.list from normal Ubuntu 17.10 installation and from MATE. They differ by 4 rows:
--- /etc/apt/ sources. list mate1710/ 724aac41- cc95-44d2- 993b-32b544ab90 22/etc/ apt/sources. list archive. ubuntu. com/ubuntu/ artful main restricted universe multiverse security. ubuntu. com/ubuntu/ artful-security main restricted universe multiverse archive. ubuntu. com/ubuntu/ artful-updates main restricted universe multiverse
+++ /media/
@@ -1,7 +1,4 @@
-# deb cdrom:[Ubuntu-MATE 17.10 _Artful Aardvark_ - Release i386 (20171018)]/ artful main multiverse restricted universe
-deb http://
-deb http://
-deb http://
+#deb cdrom:[Ubuntu 17.10 _Artful Aardvark_ - Release amd64 (20171018)]/ artful main restricted
# See http:// help.ubuntu. com/community/ UpgradeNotes for how to upgrade to
# newer versions of the distribution.
So it seems to be MATE community fault.