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It is preferable to upgrade from the console. Even in the case of cloud or virtual computing try to get to a console. Most cloud and virtual systems provide a back door console access via the web browser.
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Again, if your system is running real applications and stable make sure you can backup and restore your system before going further. |
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sudo ne /etc/update-manager/release-upgrades |
Out of Disk Space for /boot
Especailly with a GUI version of Ubuntu you may run out of disk space on in your /boot partition. This is likely due to old images. To clear up.
First check your kernel version, so you won't delete the in-use kernel image,
Now run this command for a list of installed kernels,
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dpkg --list 'linux-image*' |
Delete the kernels you don't want/need anymore by running this,
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dpkg --list 'linux-image*'sudo apt-get remove linux-image-VERSION |
Replace VERSION with the version of the kernel you want to remove. When you're done removing the older kernels, you can run this to remove ever packages you won't need anymore,
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sudo apt-get autoremove |
And finally you can run this to update grub kernel list,
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sudo update-grub |