Ubuntu (Linux) on the Zengaku Computer System was scheduled to be upgraded from 20.04 LTS to 24.04 LTS.
Linux on terminals was upgraded to 24.04 as planned, but Linux on servers (icho01, icho02, kiri) was upgraded to 22.04 because the system became unstable when upgraded to 24.04 LTS.
We are currently investigating the cause of the system instability and the possibility of future upgrades.