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uname -a
Linux tinh0v00appkrypton 2.6.32-33-server #72-Ubuntu SMP Fri Jul 29 21:21:55 UTC 2011 x86_64 GNU/Linux
sudo cat /proc/version_signature
Ubuntu 2.6.32-33.72-server 2.6.32.41+drm33.18 |
...
If all goes well you will get back in. If not, get console access, reboot the system and select the previous kernel during the initial boot.
Optionally, verify the new kernel is running. For example,
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uname -a
Linux tinh0v00appkrypton 2.6.32-3340-server #72#87-Ubuntu SMP FriTue JulMar 296 2102:2110:5502 UTC 20112012 x86_64 GNU/Linux
sudo cat /proc/version_signature
Ubuntu 2.6.32-3340.7287-server 2.6.32.4157+drm33.1823 |
do-release-update
Release updates are the most disruptive. The almost always require a reboot. The process is quite involved and it is recommended to turn off all services.