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I have Ubuntu 20.04, 64 bit, Kernel Linux 5.11.0-18-generic x86_64,MATE 1.24.1. Software Updater pop up daily, gets my OK, but informs "package operation failed". I tried to back it up by: <sudo apt autoremove && sudo apt clean && sudo apt update && sudo apt upgrade> Can that help? Hopefully you have a batter idea. Thanks.

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  • Ubuntu 20.04 LTS is still currently at 20.04.2 and using the 5.8 kernel, are you using Ubuntu? as why do you report the proposed 5.11? (if you're using proposed or testing software issues are more likely and should be reported via bug tracker)
    – guiverc
    May 27, 2021 at 8:04
  • Thank you. No reason to doubt what you say. But what I reported was copied from "About this computer information" and the result of very recent "update & upgrade." Will try to do that again... Done. Returned as, "Sub-process /usr/bin/dpkg returned an error code (1)".
    – user1041353
    May 27, 2021 at 9:27
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    Please post full complete error output from the terminal for sudo apt-get update ; sudo apt-get dist-upgrade . We can't help you without this information.
    – N0rbert
    May 27, 2021 at 18:22
  • <FATAL ERROR: < /bin/usb_printerid and /usr/bin/usb_printerid exist. <dpkg: error processing package usrmerge (--configure): installed usrmerge package post-<installation script subprocess returned error exit status 1 <newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: igor- <dpkg: error processing package postfix (--configure): <installed postfix package post-installation script subprocess returned error exit status 75 <Errors were encountered while processing: <usrmerge <postfix <E: Sub-process /usr/bin/dpkg returned an error code (1)
    – user1041353
    May 28, 2021 at 13:17
  • NOrbert: Sorry. I couldn't fully quote all answer of Terminal. It's not accepted here as "too long." What I presented is a part of that, which has words "error". Is it what you asked for? Because to me it's but a strange language. Thanks anyway.
    – user1041353
    May 28, 2021 at 13:24

2 Answers 2

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I've found the answer on https://linuxconfig.org/ubuntu-boot-repair. Right now, my Software Updater works just fine and Terminal shows no issues.

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For me, the problem was caused by the Microsoft ODBC driver package. On installation, it needs you to confirm the licence agreement and this doesn't work in the Software Updater. To get around it, from the terminal,run:

sudo apt update

sudo apt upgrade

The second command will then require you to confirm the licence agreement and once done, everything will work as normal.

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