Table 2: Card Troubleshooting (cont'd)
Issue Potential Cause Fix
When running xbutil the following
message is displayed:
Failed to open device:
0000:3b:00.0
INFO: Found total 1 card(s);
0 are usable.
Driver has not loaded successfully or
the card is not flashed successfully.
Perform a cold reboot.
XRT package fails to install on a
supported CentOS release.
Kernel development headers are
missing. The XRT package is missing a
dependency on kernel-devel and
kernel-headers.
Manually install kernel-devel and
kernel-header with yum install:
$ sudo yum install kernel-
headers-`uname -r`
$ sudo yum install kernel-
devel-`uname -r`
Note: Do not run sudo yum upgrade.
This will update the kernel-headers to
an incompatible version.
Flashing the card does not complete
after 20 minutes.
The flash operation has failed. Perform cold-reboot and then re-flash
the card.
Run time fails with following message:
Error: Failed to find Xilinx
platform
Failed to source the setup.sh script. Source /opt/xilinx/xrt/setup.sh
When installing the XRT, you see the
following message:
N: Can't drop privileges for
downloading as file '/root/
xrt_201802.2.1.79_16.04.deb'
couldn't be accessed by user
'_apt'. - pkgAcquire::Run
(13: Permission denied)
This is caused by running sudo apt
install as root.
The XRT will install correctly, despite
the error. You can find more
information about this error on
AskUbuntu.
Known Issues
The following table lists known issues. See Xilinx Answer Record 71752 and Xilinx Answer
Record 71975 for addional known issues.
Table 3:
Known Issues
Area Description Comments/Recommendations
xbmgmt
xbmgmt commands do not work. There
are no errors indicating this in output.
Reinstall the XRT package.
Chapter 7: Troubleshooting
UG1370 (v1.7) December 9, 2020 www.xilinx.com
Alveo U50 Data Center Accelerator Card Installation Guide 31