这个怎么解决？

( 1/18) Creating system user accounts...
( 2/18) Updating journal message catalog...
( 3/18) Reloading system manager configuration...
( 4/18) Updating udev hardware database...
( 5/18) Applying kernel sysctl settings...Not setting net/ipv4/conf/all/rp_filter (explicit setting exists).
Not setting net/ipv4/conf/default/rp_filter (explicit setting exists).
Not setting net/ipv4/conf/all/accept_source_route (explicit setting exists).
Not setting net/ipv4/conf/default/accept_source_route (explicit setting exists).
Not setting net/ipv4/conf/all/promote_secondaries (explicit setting exists).
Not setting net/ipv4/conf/default/promote_secondaries (explicit setting exists).
( 6/18) Creating temporary files...
( 7/18) Reloading device manager configuration...
( 8/18) Arming ConditionNeedsUpdate...
( 9/18) Updating linux initcpios...
安装软件包时提示的，搞不懂啊。