Changes since the last edition of the manual

This edition of the manual contains the following changes with respect to the previous edition (July 2020):

• Recommendations regarding file system sizes for the initial installation have been adapted (see "Carrying out an initial installation with the POSIX installation program").
• Additional hints for upgrading to a new POSIX version have been added (see "Installing an upgrade for a new POSIX version").
• The description of the COPY-POSIX-FILE command's error handling has been modified (see "COPY-POSIX-FILE").
• The function "Journaling for file systems" is no longer supported and the related sections have been deleted or modified.
• The software list in section "Installing additional software" has been updated.
• Some text fields in the FHS masks of the POSIX installation program have been modified (see "POSIX installation program in interactive mode").
• The section "SNMP-Basic-Agent and SNMP-Standard-Collection" has been replaced by "NET-SNMP and SNMP-AGENTS".