After successfully upgraded to 16.04, I am now getting this message whilst booting
lvmetad not active yet, using direct access
2 Answers
This is an inofensive message and you should not worry about it.
If you do 'man lvmetad' you'll find that it is a daemon that caches disk metadata. If this daemon is not available, lvm will read the metadata from the disk. This may be a problem with very complex systems with hundreds of volumes, but it is not for a desktop.
Every message that says it has been solved by touching grub or after installing some packages, has probably solved by upgrading the system and recreating the grub configuration.
This is a very very low priority bug and was there in Ubuntu and Debian for a while. Probably will dissapear in a upgrade without doing anything.
I've got that message for a while and without any adverse condition.
People complaining to be unable to login are being affected by another error and should continue checking the logs to find it.
 
    
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Thanks to @Kyle in this thread, you can stop this blocking your interactive ttys from appearing with the following:
I managed to resolve this for my machines by adjusting the grub configuration like so:
In
/etc/default/grub, change:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"toGRUB_CMDLINE_LINUX_DEFAULT="nomodeset"Then add this line:GRUB_TERMINAL_INPUT="console serial"Run sudo update-grub and reboot for the changes to take effect.
 
    
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