Software Package Management in PetaLinux rootfs - 2021.1 English

The package management feature is new for the Vitis 2020.1 release. All PetaLinux rootfs software packages are hosted on http://petalinux.xilinx.com/sswreleases/rel-v2020/feeds. You can install these software packages to rootfs when running Linux on the target board as long as the board has Internet access.

To use this feature, you must enable package manager DNF in rootfs. The rootfs in Xilinx-provided pre-built Linux components provides the DNF package management features by default.

To set up a package feed URL:

1. Visit the package feed repo directory http://petalinux.xilinx.com/sswreleases/rel-v2020/generic/rpm/repos/.
2. Download the repo file that matches your SoC device to target board.

   # Example: ZCU102 uses ZU9EG devices
   wget http://petalinux.xilinx.com/sswreleases/rel-v2020/generic/rpm/repos/zynqmp-generic_eg.repo
   # Example: ZCU104 uses ZU7EV devices
   wget http://petalinux.xilinx.com/sswreleases/rel-v2020/generic/rpm/repos/zynqmp-generic_ev.repo

3. Copy the downloaded repo file to /etc/yum.repos.d/.
4. Clean the cache.

   dnf clean all

To manage packages, use DNF:

• Listing available packages: Use the command dnf repoquery.
• Installing packages from a Xilinx repository: Use the command dnf install <pkg name>.

Here are some basic functions you can run with the DNF package manager.

Listing available packages

Use the command dnf repoquery.

Installing packages from a Xilinx repository

Use the command dnf install <pkg name>.

Installing packages from a local package file

Use the command dnf install <pkg file name>.

Installing packages to sysroot

When packages are installed on the rootfs of a running board, target has the latest binaries and libraries. When cross compiling on host is needed, these libraries must be added to host side sysroot.

A sysroot_overlay script is provided in XRT to extract RPM and update sysroot. This script will extract RPM libraries and include a file update in sysroot.

Besides XRT, this script supports all RPMs for various software packages.

Getting the sysroot_overlay.sh

Use the command wget https://github.com/Xilinx/XRT/blob/master/src/runtime_src/tools/scripts/sysroots_overlay.sh.

./sysroots_overlay.sh --sysroot --rpms-file

Where:

• --sysroot is the sysroot to be overlaid.
• --rpms-file is the RPMs file that contains the RPM file paths to be overlaid.

./sysroots_overlay.sh -s sysroots/aarch64-xilinx-linux/ -r $PWD/rpm.txt

./xrt-dev-202010.2.6.0-r0.aarch64.rpm
./xrt-202010.2.6.0-r0.aarch64.rpm