IO scheduler during vertica 7 install failure

During the install, we get:
These disks do not have known IO schedulers: '/dev/mapper/rootvg-varlv'
        ('') = '', '/dev/mapper/rootvg-usrlv' ('') = '', '/dev/mapper/rootvg-
        tmplv' ('') = '', '/dev/mapper/rootvg-optlv' ('') = '', '/dev/mapper
        /rootvg-homelv' ('') = ''

So we execute:
cat /sys/block/sdb/queue/scheduler
noop anticipatory [deadline] cfq

We also tried:
cat /sys/block/sdb2/queue/scheduler
noop anticipatory [deadline] cfq

Because from our /etc/fstab, this is our partition:
/dev/sdb2       /u01                    ext4    defaults         1 2

I believe this one won;t allow the install to continue.
What can be done to get beyond this problem?


These are the other issue:
    HINT (S0305): https://my.vertica.com/docs/7.0.x/HTML/index.htm#cshid=S0305
        TZ is unset for dradmin. Consider updating .profile or .bashrc
    HINT (S0041): https://my.vertica.com/docs/7.0.x/HTML/index.htm#cshid=S0041
        Could not find the following tools normally provided by the mcelog
        package: mcelog
    HINT (S0040): https://my.vertica.com/docs/7.0.x/HTML/index.htm#cshid=S0040
        Could not find the following tools normally provided by the pstack or
        gstack package: pstack/gstack
    WARN (S0170): https://my.vertica.com/docs/7.0.x/HTML/index.htm#cshid=S0170
        lvscan (LVM utility) indicates some active volumes.

How critical are these?