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Uploaded ISO Not Appearing or Not Mounting

Overview

ISO Upload and Mounting Issues

Sometimes uploaded ISOs don't appear in the list or fail to mount properly. This guide covers common causes and solutions for ISO-related problems.

ISO Not Appearing in List

Common Upload Issues

When your uploaded ISO doesn't show up in the available ISOs list, check these common causes.

Upload Location Issues

Storage Pool Verification

  • Correct Zone - Upload to the same zone/cluster as your VM
  • Storage Pool - Ensure you're uploading to the correct storage pool
  • Regional Restrictions - Some ISOs may be restricted to specific regions
  • Quota Limits - Check if you've exceeded storage quotas

File Format Problems

Supported Formats

  • ISO Format Only - Use .iso files (raw ISO format)
  • No Compression - Don't upload zipped or compressed files
  • File Extension - Ensure file has .iso extension
  • Corruption Check - Verify file integrity before upload

Upload Process Issues

Upload Troubleshooting

  • Complete Upload - Wait for upload to finish completely
  • Refresh List - Refresh the ISO list after upload completes
  • Browser Cache - Clear browser cache and reload page
  • Connection Issues - Ensure stable internet during upload

ISO Mounting Fails Silently

Mounting Problems

When ISOs appear in the list but won't mount to your VM, try these solutions.

Pre-Mount Checks

Before Mounting

  1. Detach Existing ISO - Remove any currently mounted ISO first
  2. Stop VM - Ensure VM is completely stopped before changing CD/DVD
  3. Check Permissions - Verify you have permission to modify the VM
  4. Storage Access - Confirm storage pool is accessible

Common Mounting Issues

Troubleshooting Steps

  • One ISO at a Time - Only mount one ISO per VM
  • VM State - Some panels require VM to be stopped for ISO changes
  • File Corruption - Re-upload if ISO appears corrupted
  • Size Verification - Compare uploaded file size with original

Verification Steps

Confirm ISO Integrity

  • File Size - Check if uploaded size matches original
  • Hash Comparison - Compare checksums if available
  • Re-download - Download ISO again if corruption suspected
  • Different Source - Try ISO from different download source

Service-Specific Restrictions

Plan and Service Limitations

Different service types may have varying ISO capabilities.

Cloud VMs vs Dedicated

Service Comparison

Service Type ISO Features Restrictions
Cloud VMs Basic ISO mounting May have size/format limits
Dedicated Servers Full ISO support Minimal restrictions
VPS Plans Standard ISO features Check plan specifications
Managed Services Limited ISO access Contact support for changes

Plan-Specific Limitations

Check Your Plan

  • Storage Limits - ISO uploads count toward storage quota
  • Format Restrictions - Some plans may limit ISO formats
  • Upload Size - Maximum file size varies by plan
  • Concurrent ISOs - Limits on number of stored ISOs

Advanced Troubleshooting

Network and Connectivity

Connection Issues

  • Upload Speed - Large ISOs may timeout on slow connections
  • Proxy Settings - Corporate firewalls may block uploads
  • Browser Issues - Try different browser or incognito mode
  • CDN Problems - Regional CDN issues may affect uploads

Storage Backend Issues

Infrastructure Problems

  • Storage Full - Backend storage may be at capacity
  • Maintenance - Storage systems may be under maintenance
  • Replication Lag - ISOs may take time to replicate across zones
  • Cache Issues - Storage cache may need refresh

Step-by-Step Resolution

For Missing ISOs

Resolution Process

  1. Verify Upload - Check upload completed successfully
  2. Refresh Interface - Reload the ISO management page
  3. Check Storage - Verify correct storage pool selection
  4. Wait and Retry - Allow time for processing and retry
  5. Re-upload - Upload the ISO again if still missing

For Mounting Failures

Mounting Resolution

  1. Stop VM - Ensure VM is completely stopped
  2. Clear Existing - Detach any currently mounted ISOs
  3. Refresh List - Reload available ISOs
  4. Select ISO - Choose your ISO from the list
  5. Mount and Verify - Mount ISO and check VM settings

Prevention Best Practices

Avoid Future Issues

  • Verify Before Upload - Check file integrity before uploading
  • Stable Connection - Use reliable internet for uploads
  • Correct Format - Always use proper .iso format
  • Plan Resources - Ensure adequate storage quota
  • Document Process - Note working configurations for future use

When to Contact Support

Support Required

Contact support if:

  • ISO uploads consistently fail
  • Files appear corrupted after upload
  • Mounting works but VM won't boot from ISO
  • Error messages appear during upload or mounting
  • Plan restrictions are unclear

FAQ

How long should ISO uploads take?

Upload time depends on file size and connection speed. Large ISOs (4GB+) may take 30+ minutes on slower connections.

Can I upload the same ISO multiple times?

Yes, but it will use additional storage quota. Consider deleting old versions to save space.

Why do some ISOs work and others don't?

Different ISOs may have varying compatibility. Some may require specific VM configurations or drivers.

Can I share ISOs between VMs?

Yes, uploaded ISOs can typically be used across multiple VMs in the same zone/cluster.

What's the maximum ISO size I can upload?

This varies by plan. Check your storage quota and plan specifications for limits.

Contact Support

Need Help?

  • Open Support Ticket - Use your client panel to create a support ticket
  • Include Details: File size, format, error messages in your ticket
  • Mounting Problems: Specify VM ID and ISO name in your ticket

For general ISO installation help, see Install from ISO Guide