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My system is recently upgraded from 16.04 to 18.04.
The system is not started. I am connected with the recovery mode.
When I tried to empty spaces,
I am facing the issue below:
Please be aware that Ubuntu 18.04 LTS, which was released in 2018-April (thus the 18.04) had 5 years of standard support life, is nearing the end of those five years. You can use ubuntu-support-status to confirm if your system is still supported. Either way, if the machine is on-line, you should plan to release-upgrade asap unless you plan to use ESM/Pro, but please note ESM/Pro releases are not on-topic here when standard support ends. Ubuntu's packages.ubuntu.com has already dropped 18.04 support making it harder to help 18.04 users
ubuntu-support-status
to confirm if your system is still supported. Either way, if the machine is on-line, you should plan to release-upgrade asap unless you plan to use ESM/Pro, but please note ESM/Pro releases are not on-topic here when standard support ends. Ubuntu's packages.ubuntu.com has already dropped 18.04 support making it harder to help 18.04 userstouch /etc/mysql/mysql.cnf
before doing the autoremove.