"Could not install the security updates"
by james53 from LinuxQuestions.org on (#4V6TB)
Hi
I recently installed Linux Mint 19.2 Xfce 64-bit.
When I launch the update manager, it shows me the available updates, but when I click on "install", I get the message "Could not install the security updates".
I can update on the terminal with apt-get upgrade.
Also when I click on "edit - software sources" nothing happens.
It may not have anything to do with this, but I can't launch Timeshift either.
In the log it says:
11.15@21:29 ++ Ready to launch synaptic
Error creating textual authentication agent: Error opening current controlling terminal for the process (`/dev/tty'): No such device or address
11.15@21:29 ++ Return code:127
11.15@21:29 ++ Install failed
Please can you help me?
I recently installed Linux Mint 19.2 Xfce 64-bit.
When I launch the update manager, it shows me the available updates, but when I click on "install", I get the message "Could not install the security updates".
I can update on the terminal with apt-get upgrade.
Also when I click on "edit - software sources" nothing happens.
It may not have anything to do with this, but I can't launch Timeshift either.
In the log it says:
11.15@21:29 ++ Ready to launch synaptic
Error creating textual authentication agent: Error opening current controlling terminal for the process (`/dev/tty'): No such device or address
11.15@21:29 ++ Return code:127
11.15@21:29 ++ Install failed
Please can you help me?