User Manual

Rev 2.3-1.0.1
Mellanox Technologies
207
5.8 PXE (FlexBoot) Related Issues
Table 16 - PXE (FlexBoot) Related Issues
Issue Cause Solution
PXE boot timeout. The 'always-broadcast'
option is disabled.
Enable 'always-broadcast'.
For the complete procedure, please refer
to
'Linux PXE User Manual'
PXE InfiniBand link
fails with the following
messages although the
DHCP request was sent:
Initializing and The
socket is not connected.
Either the SM is not run-
ning in the fabric or the SM
default multicast group was
created with non default
settings.
1. Activate the SM on a node or on man-
aged switch.
2. Check in the SM partitions.conf
file that the default partition rate and
MTU setting are SDR and 2K, respec-
tively.
The PXE is establishing by default an
SDR link set with an MTU of 2K. If the
default multicast group opened with dif-
ferent rate and/or MTU, the SM will
deny the PXE request to join.
Mellanox adapter is not
identified as a boot
device.
The expansion ROM image
is not installed on the
adapter. or the server's
BIOS is not configured to
work on Legacy mode
1. Run a flint query to display the expan-
sion ROM information.
For example: "flint -d /dev/mst/
mt4099_pci_cr0 q"
and look for the
"Rom info:" line.
For further information on how to burn
the ROM, please refer to MFT User
Manual.
2. Make sure the BIOS is configured to
work in Legacy mode if the adapter's
firmware does not include a UEFI
image.
When assigning a VF to
a VM the following
message is reported on
the screen:
"PCI-assgine: error:
requires KVM sup-
port"
SR-IOV and virtualization
are not enabled in the
BIOS.
1. Verify they are both enabled in the BIOS
2. Add to the GRUB configuration file to
the following kernel parameter:
"intel_immun=on"
(see Section 3.4.1.2, “Setting Up SR-
IOV”, on page 171).
Table 15 - SR-IOV Related Issues
Issue Cause Solution