How to update Deepin to version 20?

Question

linux

Happy New Year everyone!
I wish you all health and success!
Connoisseurs, please tell me how to solve the problem with installing updates on DEEPIN 15.11?
The bottom line is this:
The system was not updated on its own, when updating, the error "Update failed" was displayed.
On the site, I found instructions for switching to version 20 ... -20/
Did as required, now the system reports that the updates have been downloaded to the computer and you can update, but during the installation an error occurs: "Update failed."
Team:

sudo -s apt update && sudo apt upgrade -g; sudo -s apt update && sudo apt upgrade -y

Does not help.
What needs to be done to update?
Thank you.

Answer 1

what you are doing is a little wrong
on the site https://hackware.ru/?p=10147 there is an instruction for adding a repository from another distribution kit
if you combine everything together (think about it) then your ubuntu will be updated and depen the same
but everything is easier handles
like so
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
sudo sh -c "echo 'deb https://community-packages.deepin.com/deepin/ apricot main contrib non- free' > /etc/apt/sources.list.d/depen.list"
sudo sh -c "echo 'deb https://community-store-packages.deepin.com/appstore eagle appstore' > /etc/apt/ sources.list.d/apstore.list"
sudo sh -c "echo 'Package: *'>/etc/apt/preferences.d/depen.pref; echo 'Pin: release a=Debian'>>/etc/apt/preferences.d/depen.pref; echo 'Pin-Priority: 50'>>/etc/apt/preferences.d/depen.pref"
sudo sh -c "echo 'Package: *'>/etc/apt/preferences.d/apstore.pref; echo 'Pin : release a=Debian'>>/etc/apt/preferences.d/apstore.pref; echo 'Pin-Priority: 50'>>/etc/apt/preferences.d/apstore.pref"
sudo aptitude install -t Debian PACKAGE-NAME
and yes in that instruction the entry is not correct
now everything is correct
only the keys to add
wget https://github.com/deepin-espanol/llaves-repositor...
wget https://github.com/deepin-espanol/llaves -repository...
wget https://github.com/deepin-espanol/llaves-repositor...
sudo cp trusted.gpg /etc/apt/
sudo cp deepin-pools-keyring.gpg uos-archive-keyring.gpg /etc/apt/trusted.gpg.d/
rm trusted.gpg deepin-pools-keyring.gpg uos- archive-keyring.gpg

Answer 2

What does "the command .. .does not help" mean?
What error are you getting?