add p9 sources.list

etc/apt/apt.conf.M90P

+/*
+ * This is the main configuration file for the APT suite of tools,
+ * see apt.conf(5) for details.
+ */
+
+Dir::Etc::main "/dev/null";
+Dir::Etc::parts "/var/empty";
+Dir::Etc::SourceParts "/var/empty";
+
+Dir::Etc::sourcelist "/etc/eterbuild/apt/sources.list.M90P";

etc/apt/sources.list.M90P

+# Package repository URLs
+#
+# You can add [alt] after rpm for digital signature check
+
+rpm file:/var/ftp/ pub/ALTLinux/p9/branch/i586 classic
+rpm file:/var/ftp/ pub/ALTLinux/p9/branch/noarch classic
+rpm file:/var/ftp/ pub/ALTLinux/p9/branch/x86_64-i586 classic
+
+rpm [etersoft] file:/var/ftp/ pub/Etersoft/LINUX@Etersoft/p9/branch/i586 addon
+rpm [etersoft] file:/var/ftp/ pub/Etersoft/LINUX@Etersoft/p9/branch/noarch addon
+rpm [etersoft] file:/var/ftp/ pub/Etersoft/LINUX@Etersoft/p9/branch/x86_64-i586 addon