Repositories for Raspbian (Debian Stretch) no longer supported

This is a note on the Raspbian release, but probably will need a similar action for any other ones so expired support

/etc/apt/sources.list
comment out "raspbian" entry and add "legacy" one.

-- old

deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi

-- should be

deb http://legacy.raspbian.org/raspbian/ stretch main contrib non-free rpi

need to do apt-update

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enable root login via gui on ubuntu 22.04

 

not recommended, but needs a

djustments to not only root login, and unlock that, but GDM (controlling gui login) as well.

 

https://medium.com/@karthiked/enable-root-login-in-ubuntu-ubuntu-22-04-70521607bc7c

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virtual box install notes debian 22.04

 

 

 notes installing virtualbox from deb

https://askubuntu.com/questions/1439468/how-to-install-virtualbox-7-0-2-from-deb-in-ubuntu-software-center-after-instal

 

  Package libqt5core5a is not installed.

virtualbox-7.0 depends on libqt5dbus5 (>= 5.14.1); however:
  Package libqt5dbus5 is not installed.
 virtualbox-7.0 depends on libqt5gui5 (>= 5.14.1) | libqt5gui5-gles (>= 5.14.1); however:
  Package libqt5gui5 is not installed.
  Package libqt5gui5-gles is not installed.
 virtualbox-7.0 depends on libqt5help5 (>= 5.15.1); however:
  Package libqt5help5 is not installed.
 virtualbox-7.0 depends on libqt5opengl5 (>= 5.0.2); however:
  Package libqt5opengl5 is not installed.
 virtualbox-7.0 depends on libqt5printsupport5 (>= 5.0.2); however:
  Package libqt5printsupport5 is not installed.
 virtualbox-7.0 depends on libqt5widgets5 (>= 5.15.1); however:
  Package libqt5widgets5 is not installed.
 virtualbox-7.0 depends on libqt5x11extras5 (>= 5.6.0); however:
  Package libqt5x11extras5 is not installed.
 virtualbox-7.0 depends on libqt5xml5 (>= 5.0.2); however:
  Package libqt5xml5 is not installed.
 

apt -y install libqt5core5a

apt -y install libqt5core5a
apt -y install libqt5dbus5
apt -y install libqt5gui5
apt -y install libqt5gui5-gles
apt -y install libqt5help5
apt -y install libqt5opengl5
apt -y install libqt5printsupport5
apt -y install libqt5widgets5
apt -y install libqt5x11extras5
apt -y install libqt5xml5

 

dpkg -i virtualbox-7.0_7.0.14-161095~Ubuntu~jammy_amd64.deb
 

optional

 

apt autoremove

 

 

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ssh cipher KexAlgorithms errors on ssh

Problem with logging in on a system via ssh. 

typical messages are such as:

Unable to negotiate with 192.168.1.196 port 22: no matching cipher found. Their offer: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

add Cipher stanza to config for the host

Host 192.168.1.196

  Ciphers aes256-ctr,aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc

  KexAlgorithms +diffie-hellman-group1-sha1

  User jws

suggested from

https://unix.stackexchange.com/questions/459074/ssh-unable-to-negotiate-no-matching-cipher-found-is-rejecting-cbc

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vnc security failure connecting to vncserver. desktop encryption setting

This seems to fix a problem connecting to Ubuntu.  Encryption is set to a level from other systems to work with vnc viewer, so can be disabled.  Might not be useful if not on a secure channel.  But tested and works.  This goes to the desktop software on the Ubuntu server machine.  

https://askubuntu.com/questions/1126714/vnc-viewer-unable-to-connect-encryption-issue

gsettings set org.gnome.Vino require-encryption false

Error message (or such)

Unable to connect to VNC Server using your chosen security setting.

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