提示更新过程中出现问题。这通常是某种网络问题，请检查您的网络连接并重试。我重试了 5 次，确保互联网连接稳定，但仍然出现相同的错误。我还附上了错误图片的链接。
do-release-upgrade命令输出
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1,265 kB]
Fetched 1,266 kB in 0s (0 B/s)
authenticate 'jammy.tar.gz' against 'jammy.tar.gz.gpg'
extracting 'jammy.tar.gz'
[sudo] password for hackytech:
Reading cache
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Ign cdrom://Ubuntu-MATE 20.04.4 LTS _Focal Fossa_ - Release amd64 (20220223) focal InRelease
Err cdrom://Ubuntu-MATE 20.04.4 LTS _Focal Fossa_ - Release amd64 (20220223) focal Release
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Get:1 https://brave-browser-apt-release.s3.brave.com stable InRelease [4,316 B]
Hit https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Hit https://deb.nodesource.com/node_16.x focal InRelease
Err https://brave-browser-apt-release.s3.brave.com stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
Hit https://linux.teamviewer.com/deb stable InRelease
Hit http://packages.microsoft.com/repos/code stable InRelease
Hit http://ppa.launchpad.net/flatpak/stable/ubuntu focal InRelease
Hit http://in.archive.ubuntu.com/ubuntu focal InRelease
Hit http://security.ubuntu.com/ubuntu focal-security InRelease
Hit http://ppa.launchpad.net/jeanslack/videomass/ubuntu focal InRelease
Get:2 https://mega.nz/linux/repo/xUbuntu_18.04 ./ InRelease [2,993 B]
Hit http://in.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit https://download.sublimetext.com apt/stable/ InRelease
Hit http://in.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit http://ppa.launchpad.net/lah7/ubuntu-mate-colours/ubuntu focal InRelease
Ign https://proget.makedeb.org makedeb InRelease
Hit http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu focal InRelease
Hit http://ppa.launchpad.net/sylvain-pineau/kazam/ubuntu focal InRelease
Get:3 https://proget.makedeb.org makedeb Release [607 B]
Fetched 7,916 B in 0s (0 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
None
Checking for installed snaps
Calculating snap size requirements
Updating repository information
Third party sources disabled
Some third party entries in your sources.list were disabled. You can
re-enable them after the upgrade with the 'software-properties' tool
or your package manager.
To continue please press [ENTER]
Hit https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Get:1 https://brave-browser-apt-release.s3.brave.com stable InRelease [4,316 B]
Hit https://deb.nodesource.com/node_16.x focal InRelease
Err https://brave-browser-apt-release.s3.brave.com stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Hit http://in.archive.ubuntu.com/ubuntu jammy InRelease
Get:3 https://mega.nz/linux/repo/xUbuntu_18.04 ./ InRelease [2,993 B]
Hit http://in.archive.ubuntu.com/ubuntu jammy-updates InRelease
Get:4 http://security.ubuntu.com/ubuntu jammy-security/main amd64 DEP-11 Metadata [11.4 kB]
Ign https://proget.makedeb.org makedeb InRelease
Hit http://in.archive.ubuntu.com/ubuntu jammy-backports InRelease
Get:5 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 DEP-11 Metadata [10.4 kB]
Get:6 https://proget.makedeb.org makedeb Release [607 B]
Fetched 140 kB in 0s (0 B/s)
Fetched 140 kB in 0s (0 B/s)
Hit https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Get:1 https://brave-browser-apt-release.s3.brave.com stable InRelease [4,316 B]
Hit https://deb.nodesource.com/node_16.x focal InRelease
Hit http://security.ubuntu.com/ubuntu jammy-security InRelease
Err https://brave-browser-apt-release.s3.brave.com stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
Hit http://in.archive.ubuntu.com/ubuntu jammy InRelease
Hit http://in.archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign https://proget.makedeb.org makedeb InRelease
Hit http://in.archive.ubuntu.com/ubuntu jammy-backports InRelease
Get:2 https://mega.nz/linux/repo/xUbuntu_18.04 ./ InRelease [2,993 B]
Get:3 https://proget.makedeb.org makedeb Release [607 B]
Fetched 7,916 B in 0s (0 B/s)
Hit https://deb.nodesource.com/node_16.x focal InRelease
Get:1 https://brave-browser-apt-release.s3.brave.com stable InRelease [4,316 B]
Hit https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Hit http://in.archive.ubuntu.com/ubuntu jammy InRelease
Err https://brave-browser-apt-release.s3.brave.com stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
Hit http://security.ubuntu.com/ubuntu jammy-security InRelease
Get:2 http://in.archive.ubuntu.com/ubuntu jammy-updates InRelease [114 kB]
Get:3 https://mega.nz/linux/repo/xUbuntu_18.04 ./ InRelease [2,993 B]
Get:4 http://in.archive.ubuntu.com/ubuntu jammy-backports InRelease [99.8 kB]
Ign https://proget.makedeb.org makedeb InRelease
Get:5 https://proget.makedeb.org makedeb Release [607 B]
Fetched 222 kB in 0s (0 B/s)
Error during update
A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.
Restoring original system state
Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done