Ubuntu Debian - yszheda/wiki GitHub Wiki

Trouble shooting

Sub-process /usr/bin/dpkg returned an error code

W: There is no public key available for the following key IDs

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 3B4FE6ACC0B21F32
sudo apt-get update

software package version

dpkg -l | grep '^ii' | grep <>

mount: wrong fs type, bad option, bad superblock

lightdm

[+474.68s] DEBUG: Session pid=2060: Continue authentication
[+474.93s] DEBUG: Session pid=3069: Authentication complete with return value 0: Success
[+474.93s] DEBUG: Session pid=2060: Authenticate result for user linaro: Success
[+474.93s] DEBUG: Session pid=2060: User linaro authorized
[+474.96s] DEBUG: Session pid=2060: Greeter requests session gnome-shell
[+474.96s] DEBUG: Seat: Failed to find session configuration gnome-shell
[+474.96s] DEBUG: Seat: Can't find session 'gnome-shell'
[+474.96s] DEBUG: Session pid=2060: Greeter start authentication for linaro
[+474.96s] DEBUG: Session pid=3069: Sending SIGTERM
[+474.96s] DEBUG: Session pid=3082: Started with service 'lightdm', username 'linaro'
[+474.96s] DEBUG: Session pid=3069: Terminated with signal 15
[+474.96s] DEBUG: Seat: Session stopped
[+474.96s] WARNING: Error using VT_GETSTATE on /dev/console: Inappropriate ioctl for device
[+475.00s] DEBUG: Session pid=3082: Got 1 message(s) from PAM
[+475.00s] DEBUG: Session pid=2060: Prompt greeter with 1 message(s)

login

failed to start session

user-session

ioctl VT_GETSTATE: Inappropriate ioctl for device

[apt] GPG error “NO_PUBKEY”

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <PUBKEY>
sudo apt-get update
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