Error installing v18 Service Pack 1280: "cp: cannot access gnu_tar"

• Article Type: General
• Product: Aleph
• Product Version: 18.01

Description:
I'm trying to install v18 SP 1280 (using the new procedure). After downloading the Service Pack, doing "util sp", selecting #4 (Install SP), and then "1" ("Install Service Pack 1280"), I got:
...
Are you sure you want to install Service Pack 1280 Y/[N] y
cp: cannot access gnu_tar
Opening tar files...please wait!
cp: cannot access /wrkspc1/exlibris/aleph/u18_1/tmp/install.sp.1280/alephm/proc/report_change.dat
cp: cannot access /wrkspc1/exlibris/aleph/u18_1/tmp/install.sp.1280/sp_reports.pm
cp: cannot access /wrkspc1/exlibris/aleph/u18_1/tmp/install.sp.1280/sp.utility
Copying files. Please wait...
actions_copy: No such file or directory

The /exlibris/aleph/a18_1/service_pack/1223-1280/sp.log file has a corresponding message:

Untarring sp.tar.
gnu_tar: Command not found

Resolution:
Still being checked.