Hi,
After installing successfully Ubuntu-Mate 16.04 today and having run it for hours I asked for a system update using Synaptic.
Update was successful. BUT when I tried to install a new soft I could not.
Synaptic is requesting a password, which is the same as usual, but denied to let me access.
The amazing part is that rebooting the system I was able to access without trouble using my password (the one which was defined during the installation process) but the same password is not recognized when trying to use Synaptic or the terminal MATE.
When the PC switched to standby mode the password does not work. BUT if I ask for “change user” I come back to the login window and the password is functional.
I have never had such behaviour. Does anyone have an idea to solve this issue ?
Thank you for helping
Yes, it means I cannot access terminal commands like typing “sudo ls”.
I verified what is produced from the keyboard in a text file … it is typing exactly my password.
Thinking this is due to an installation bug I erased my system and made this night a new installation.
After installation everything was OK, after updates I get the same problem : no more access to admin functions.
Hi,
I restarted in recovery mode —> GRUB —> advanced mode —> GRUB start menu —> nothing happened , when pressing return I accessed to “normal” session where I tested admin mode : failure , password is not recognized.
I think you misunderstand some things @yann49.
Recovery mode is AFTER GRUB.
In recovery mode you should have an option named “root” that you can use to perform admin tasks.
Hi Wolfman,
Thank you for pointing the problem I had. In fact my DVD drive was dying (noisy for some time).
Looking at the DVDs I noticed circles on them. It was destroying slowly my DVDs.
I bought a new DVD drive and new good DVDs , than burned a new ISO … and now everything is OK.