[Raw] EC2 - Recovery Instance

• Stop Instance

• Detach the root volume of your instance

• Attach the volum to a rescue instance ( one which you can SSH in to). Make sure the rescue instance is in the same availability zone as your original instance.

• Mount the root volume to a temporary mount point on the rescue instance For example: sudo mount /dev/xvdf1/mnt/recovery

• You can see instance log messages under /mnt/recovery/var/log/ directory.

• cd /mnt/recovery/var/log/

• sudo cat boot.log

• sudo cat messages

• sudo cat dmesg

• You can display current SSH settings

• sudo cat /etc/ssh/sshd_config

• sudo cat /etc/ssh/ssh_config

• 1)To return the volume to the original instance

• Unmount the volume.

• sudo unmount /mnt/recovery

• 2)Detach the volume from the recovery instance

• 3) Remount the volume on the original instance as the root volume ( e.g /dev/sda1 )

• 4) Start the instance