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From OpenVZ Wiki

Here are the links for downloads of all 2.6.18 OpenVZ kernels.

• 028stab053.14
• 028stab053.5
• 028stab053.4
• 028stab051.1
• 028stab049.1
• 028stab047.1
• 028stab045.1
• 028stab039.1
• 028stab035.1
• 028stab033.1
• 028stab031.1
• 028stab027.1
• 028stab023.1
• 028stab021.1
• 028test018.1
• 028test015.1
• 028test010.1
• 028test007.1
• 028test005.1
• 028test003.1
• 028test002.1