Home / Downloads / IBM zPDT Software Updates / ZPDT RELEASE 1.9 DRIVER 53.04



zPDT Fixpack Software Update, release date April 30th, 2019
This Fixpack release of GA-9 (53.04) includes the following updates:

  • zEDC (zEnterprise Data Compression
  • Performance (JIT compiler update)
  • Channel Measurement Facility
  • Tape Mount CCW’s
    • Updated Crypto Simulator (5.4)
    • CFCC Level 23
    • The adstop and storestop commands have been removed.
    • Update aws_sysctl to shmall and shmmax because machines now have larger memory

Fixed in this release

  • On Ubuntu Linux Z1090/Z1091_token update fails due to location of system awk binary
  • OSA device address 0000 always terminates on zPDT start-up.
  • Clientconfig_cli not working if host contains both dash and numbers.
  • zVM VSWITCH in layer 2 does not work on zVM.

The previous release of GA-8 (51.16) included the following updates:

  • Fixed CPC System Information from STSI Instruction as it was displaying blanks under CPU
    Model capacity ID.
  • Fixed issue where Linux on Z RHEL 7.3 / 7.4 might fail to boot under zVM 6.3 / 6.4 with “User
    process fault: interruption code 0x60038 in libc-2.17.so”.
  • LDK licensing no longer requires 32bit bit version of glibc.
  • Locate Record Domain – Read Count fix.
  • Fixed install issue on RHEL 8.0.



If installed on a clean machine (with no Safenet rpms previously installed or Safenet rpms removed and then machine rebooted), users will be able to obtain licenses right after installation. If installed on a machine that has a previous z1090 installed, A machine reboot will be required after the installation. Once machine is back up, users will be able to obtain licenses. Failure to reboot will prevent obtaining licensing with a return code of 304 – “license not available”

This release will install over any exiting zpdt driver already installed. And any other driver will install over this release. But if you re-install an older release, the Safenet rpms will go back to the bad versions and you will not obtain licenses. For downloaded zip file:

  • Unzip the downloaded release file
  • Review the Readme file (.html & .pdf) for full information and instructions
  • FTP or otherwise transfer the install file (z1090-1-9.53.04.x86_64 in the /linux directory) to your zPDT system in the /tmp directory
  • Switch to root (UID 0) mode:    su –
  • Change to the /tmp directory:    cd /tmp
  • Make the program file executable:    chmod 775 z1090-1-9. 53.04.x86_64
  • Execute the z1090 installer program:  ./z1090-1-9. 53.04.x86_64
  • You will have to scroll through the license agreement then accept it. The installation should then complete.

For CDROM or .iso distributions:

  • Burn the .iso image onto a CD as an “image”. The resulting CD should have multiple files and directories on it.
  • See the instructions in the CD Readme file (.html and .pdf) on the CD for full information
  • Copy the z1090 file to your /tmp directory:

cp /run/media/ibmsys1/zPDT_53.04/linux/z1090*/tmp (1 See note below regarding path to the CD)

  • Switch to root (UID 0) mode: su –
  • Change to the /tmp directory: cd /tmp
  • Make the program file executable: chmod 775 z1090-1-9.53.04.x86_64
  • Execute the z1090 installer program:   ./z1090-1-9.53.04.x86_64
  • You will have to scroll through the license agreement then accept it. The installation should then complete.


1   Different releases of Linux may automatically mount the CD at a different mount point than shown here. You may have to determine the correct path to the install file.

If you applied any IBM supplied zPDT patches to your installed system you will need to remove them before you can install this new release. Check the documentation that came with the patches for specific removal instructions.

You should test your system to verify that it is functioning properly. The zPDT release level is displayed as one of the messages early in the initialization process. It should report release 53.04.


Review the External Release Letter carefully; there are significant changes.


There are also release specific installation instructions in the External Release Letter and general installation instructions in Chapter 5 of the zPDT  Guide and Reference Redbook, (SG248205) version 4.