i have a proble with my ubuntu mate cant update and upgrade
help me please
Please open the text file /etc/apt/sources.list. Copy the entire contents of that file onto the clipboard, paste it into a post here, re-select the text in the post here, and then click the </> icon right above the post textbox.
This will allow us to see what is wrong. Thank you in advance.
@Yan Ubuntu 20.10, along with all flavors like Ubuntu-MATE reached EOL some time ago.
https://ubuntu-mate.community/t/ubuntu-mate-20-10-reaches-end-of-life/24314/17
After a release reaches EOL, it's repositories are moved, meaning the "does not have a Release file" error occurs.
Your issue is you're trying to upgrade a no-longer supported release. You can change the repository to point to it's moved location (there is no automatic tool to do this, it's manual, as you're supposed to release-upgrade to the next release before it's reached EOL thus this issue should not occur). To do this you can refer to EOLUpgrades - Community Help Wiki
Do note: your release-upgrade will also be harder too, as Ubuntu-MATE 20.10 would release-upgrade to 21.04; however that release reached it's EOL only days ago; thus that upgrade is gone.
It maybe easier to upgrade via re-install a supported release. I'd also suggest sticking to LTS or long-term-support release if you don't like release-upgrading every 6-9 months.
Ubuntu-MATE 20.10 meant the 2020-October release; 9 months of life meaning it's EOL was 2021-July..
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> > # deb cdrom:[Ubuntu-MATE 20.10 _Groovy Gorilla_ - Release amd64 (20201022)]/ groovy main multiverse restricted universe > > > > # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to > > # newer versions of the distribution. > > deb http://archive.ubuntu.com/ubuntu groovy main restricted > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy main restricted > > > > ## Major bug fix updates produced after the final release of the > > ## distribution. > > deb http://archive.ubuntu.com/ubuntu groovy-updates main restricted multiverse > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy-updates main restricted > > > > ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu > > ## team. Also, please note that software in universe WILL NOT receive any > > ## review or updates from the Ubuntu security team. > > deb http://archive.ubuntu.com/ubuntu groovy universe > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy universe > > deb http://archive.ubuntu.com/ubuntu groovy-updates universe > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy-updates universe > > > > ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu > > ## team, and may not be under a free licence. Please satisfy yourself as to > > ## your rights to use the software. Also, please note that software in > > ## multiverse WILL NOT receive any review or updates from the Ubuntu > > ## security team. > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy multiverse > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy-updates multiverse > > > > ## N.B. software from this repository may not have been tested as > > ## extensively as that contained in the main release, although it includes > > ## newer versions of some applications which may provide useful features. > > ## Also, please note that software in backports WILL NOT receive any review > > ## or updates from the Ubuntu security team. > > deb http://archive.ubuntu.com/ubuntu groovy-backports main restricted universe multiverse > > # deb-src http://id.archive.ubuntu.com/ubuntu/ groovy-backports main restricted universe multiverse > > > > ## Uncomment the following two lines to add software from Canonical's > > ## 'partner' repository. > > ## This software is not part of Ubuntu, but is offered by Canonical and the > > ## respective vendors as a service to Ubuntu users. > > deb http://archive.canonical.com/ubuntu groovy partner > > deb-src http://archive.canonical.com/ubuntu groovy partner > > > > deb http://archive.ubuntu.com/ubuntu groovy-security main restricted multiverse > > # deb-src http://security.ubuntu.com/ubuntu groovy-security main restricted > > deb http://archive.ubuntu.com/ubuntu groovy-security universe > > # deb-src http://security.ubuntu.com/ubuntu groovy-security universe > > # deb-src http://security.ubuntu.com/ubuntu groovy-security multiverse > > > > # This system was installed using small removable media > > # (e.g. netinst, live or single CD). The matching "deb cdrom" > > # entries were disabled at the end of the installation process. > > # For information about how to configure apt package sources, > > # see the sources.list(5) manual.
@guiverc (above) is right; Ubuntu 20.10 "Groovy Gorilla" is out of support. Please see his post directly above your last post. 