The problem here is that
sshd fails to start due to invalind configuration.
You have to ask your dedicated server hosting provider if they have a way to attach a network accessible console to the server.
This way you can use the console to fix your
sshd_config, and then restart
If your hosting provider does not have remote console available, then you have to give them your credentials so they can fix the
To mount the root partition, you need to know the partition setup. If you don't already know about it, you can find the information with
This gives out a list of partitions available on all hard disks. Then, you should be able to find out where the root partition is.
Then you can mount root partition with this command:
mount /dev/sda1 /mnt
This assumes root partition is in first hard disks first partition, so replace /dev/sda1 with the proper partition.
If you have Linux software RAID in use, then the first parameter is
/dev/mdX, where X is the number of the MD device.
If you have LVM in use, then the first parameter is
/dev/mapper/LVMLABEL. Here you can find LVMLABEL by using