How do i mount a Raid disk in linux

I have an ubuntu server that i had to restart on rescue mode and i am trying to mount a partition to reset the root password. I followed the instruction of the hosting company but got stuck and haven heard from them

When i try to do

mount /dev/sda1 /mnt/

i got this error:

mount: unknown filesystem type 'linux_raid_member'

This is the output of fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009307f

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    20973568    10485760+  fd  Linux raid autodetect
/dev/sda2        20973569  1952468992   965747712   fd  Linux raid autodetect
/dev/sda3      1952468993  1953520064      525536   82  Linux swap / Solaris

Disk /dev/md2: 988.9 GB, 988925591552 bytes
2 heads, 4 sectors/track, 241436912 cylinders, total 1931495296 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/md2 doesn't contain a valid partition table

Disk /dev/md1: 10.7 GB, 10737352704 bytes
2 heads, 4 sectors/track, 2621424 cylinders, total 20971392 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/md1 doesn't contain a valid partition table

How can i mount the disk?

Your RAID devices are called /dev/md1 and /dev/md2. It's possible that these contain your filesystems; you could try:

mount /dev/md1 /mnt

Or:

mount /dev/md2 /mnt

Depending on how your system is configured it is also possible that these devices are themselves part of a larger virtual device. If you're unable to mount the individual devices, let us know and we'll work from there.

For more information about Linux software RAID, start with this document.