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Issue Can't update from Onyx to Obsidian

Ahmed

New Pleskian
I'm trying to update a Plesk installation on an Ubuntu 18.04 server from Onyx to Obsidian through CLI.

The plesk installer was constantly giving error 400 while trying to download resources. It ended up working after like 6-7 attempts by using the --download-retry-count 10 option. One of the resources only worked at the 10th attempt.

After that, the corresponding apt commands were executed. The result was this:

Code:
Fetched 13.6 MB in 46s (297 kB/s)
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-snmp_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-pspell_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-ldap_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-fpm_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-soap_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-xmlrpc_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-pdo_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-mysql_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-xml_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-odbc_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-dba_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-pgsql_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-cli_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
E: Failed to fetch http://autoinstall.plesk.com/pool/PHP_7.3.33_248/dist-deb-Ubuntu-18.04-x86_64/packages/plesk-php73-gd_7.3.33-ubuntu.18.04.211118.1928_amd64.deb  400  Bad Request [IP: 72.14.178.174 80]
ELaunching component and product checkers...
Downloading file report-update: 100% was finished.                         
Downloading file pool/PSA_18.0.51_11495/examiners/py_launcher.sh: 100% was finished.

ERROR: An error occurred on attempt to install packages.
Attention! Your software might be inoperable.
Visit https://support.plesk.com/ to search for a solution.

Now, when I try to run the installer again, I get the following error and the command exits:
Code:
/var/cache/parallels_installer/installer: line 1: syntax error near unexpected token `<'
/var/cache/parallels_installer/installer: line 1: `<html><head><title>autoinstall.plesk.com</title></head><body><h1>autoinstall.plesk.com</h1><p>Coming soon.</p></body></html>'

Can you please fix your autoinstall server so it stops returning error 400? Thank you.
 
Can you please fix your autoinstall server so it stops returning error 400? Thank you.
The autoinstaller script only informs you what the network connection of the request to the Plesk archives returns. This is not an error of the installation script, but an issue with your network connection. Something interferes with the network connection.
 
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