Article 4XHWG fail upgrade Ubuntu 18.04.3 to 19.04

fail upgrade Ubuntu 18.04.3 to 19.04

by
Sivri
from LinuxQuestions.org on (#4XHWG)
when i make upgrade, it is be fail.my pc doesnt start.
i used ubuntu 18.04.3 LTS. i wanted to upgraded (ubuntu 19.04)
after it is shutdowned, it is not beginned.
When it wasnt started,
i pres alt+ f2
1184 packages can be updated.
0 updates are security updates.
Failed to connect to https://changelogs.ubuntu.com/meta-release. Check your internet connection or proxy settings

at terminal i writed " ifconfig"
it is not failed.

i make what i do, if i format and again install ubuntu.latest?d=yIl2AUoC8zA latest?i=JUIUTVk6hbM:6ykx8Mfqu_E:F7zBnMy latest?i=JUIUTVk6hbM:6ykx8Mfqu_E:V_sGLiP latest?d=qj6IDK7rITs latest?i=JUIUTVk6hbM:6ykx8Mfqu_E:gIN9vFwJUIUTVk6hbM
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