Overview
Rescue mode allows you to boot your instance into a minimal Linux environment to troubleshoot and repair issues when you can't access the system normally.
When to Use Rescue Mode
Access Issues
- • Lost SSH access due to firewall rules
- • Need to reset the root password
System Issues
- • System won't boot (filesystem corruption)
- • Boot loader issues
- • Need to recover files
Entering Rescue Mode
Step 1: Access Cloud Control Panel
- Log into the Cloud Control Panel
- Select your instance from the Instances tab
Step 2: Boot Into Rescue Mode
- Click the Rescue button in the instance actions
- Select a rescue image (usually Ubuntu or Debian)
- The instance will reboot into rescue mode
Accessing Your Disk
Once in rescue mode, your original disk will be available as a secondary device (usually /dev/vdb or /dev/sdb). You'll need to mount it to access your files:
# Create a mount point
mkdir /mnt/disk
# Mount your disk
mount /dev/vdb1 /mnt/disk
# Access your files
cd /mnt/diskCommon Rescue Tasks
Resetting Root Password
# Mount your disk
mount /dev/vdb1 /mnt/disk
# Chroot into your system
chroot /mnt/disk
# Reset password
passwd root
# Exit chroot
exit
# Unmount
umount /mnt/diskFixing Filesystem Issues
# Check and repair filesystem (disk must be unmounted)
fsck -y /dev/vdb1Recovering Files
# Mount your disk
mount /dev/vdb1 /mnt/disk
# Copy files out
scp /mnt/disk/path/to/file user@remote-host:/backup/Exiting Rescue Mode
Step 1: Unmount Filesystems
Make sure to unmount any mounted filesystems:
umount /mnt/diskStep 2: Unrescue Instance
- In the Cloud Control Panel, click Unrescue on your instance
- The instance will reboot into your normal operating system
Warning
Always unmount filesystems before exiting rescue mode to prevent data corruption. Use umount /mnt/disk before unrescuing.