Centos 6.8 failed reboot dedicated server

[ServerDude2]

I bought/rent a dedicated server from nocix with Centos 6.8 installed, also came with 2 hard drives

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sda - 128GB SSD

&

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sdb - 2TB HDD 

and I think I made a mistake by partitioning the second drive

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/dev/sdb

so I now have

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/dev/sdb1

which I mounted to a folder called

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/newdrive

then transferred all files in a user directory called

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/home1

and deleted all files in

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/home1

then mounted the drive to

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/home1

but when I rebooted I lost the ability to connect via SSH, I contacted nocix and they said I had to reload with the SystemRescueCd.

I did that and have been reading/following the steps outlined here: https://www.system-rescue-cd.org/Sysres ... maged-Grub

See the below error messages I got when I ran

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grub-install /dev/sda

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df: Warning: cannot read table of mounted file systems: No such file or directory df: Warning: cannot read table of mounted file systems: No such file or directory Could not find device for /boot: Not found or not a block device.

I am very new to this so I'm not sure what to do.. It's also quite urgent as the websites this server is hosting are down because of I can't get it back online.

See my partitions below. I've got 2 drives sda and sdb. loop0 is the linux installation and sda1 is the boot drive.

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[=====DEVICE=====] [==FILESYS==] [======LABEL======] [====SIZE====] [MAJ] [MIN]
[loop0           ] [squashfs   ] [<unknown>        ] [   275.14 MB] [  7] [  0]
[sda1            ] [ext2       ] [<unknown>        ] [   250.00 MB] [  8] [  1]
[sda2            ] [LVM2_member] [<unknown>        ] [   119.00 GB] [  8] [  2]
[sdb1            ] [ext3       ] [/userdata        ] [     1.82 TB] [  8] [ 17]
[dm-0            ] [ext4       ] [<unknown>        ] [   110.25 GB] [253] [  0]
[dm-1            ] [ext4       ] [<unknown>        ] [     1.00 GB] [253] [  1]
[dm-2            ] [swap       ] [<unknown>        ] [     7.72 GB] [253] [  2]

Output of

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vgscan

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WARNING: lvmetad is running but disabled. Restart lvmetad before enabling it!
  Reading all physical volumes.  This may take a while...
  Found volume group "vg" using metadata type lvm2

And output of

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lvscan

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  WARNING: lvmetad is running but disabled. Restart lvmetad before enabling it!
  ACTIVE            '/dev/vg/root' [110.25 GiB] inherit
  ACTIVE            '/dev/vg/tmp' [1.00 GiB] inherit
  ACTIVE            '/dev/vg/swap' [7.72 GiB] inherit