I am working on setting up a Hailo-8 AI accelerator connected via a PCIe adapter to a Raspberry Pi 5 (ARM64/aarch64).
The system recognizes the card via lspci, and the hailo_pci kernel driver (version 4.21.0) loads correctly. However, the driver fails during the device initialization (probe) sequence.
The kernel log (dmesg) shows a clear error: the driver cannot find the necessary firmware file.
Key dmesg Error:
Failed with error -2 to write file hailo/hailo8_fw.bin
user-space tools like hailortcli scan cannot find the device.
What I have tried:
I have thoroughly searched for the hailo8_fw.bin file inside the following official packages, but could not find it.
Error Log :
airaai@airaai:~$ lspci | grep -i hailo
0001:01:00.0 Co-processor: Hailo Technologies Ltd. Hailo-8 AI Processor (rev 01)
airaai@airaai:~$ lsmod | grep hailo
hailo_pci 118784 0
airaai@airaai:~$ sudo dmesg | grep -i hailo
[sudo] password for airaai:
[ 6.152617] hailo_pci: loading out-of-tree module taints kernel.
[ 6.152629] hailo_pci: module verification failed: signature and/or required key missing - tainting kernel
[ 6.167445] hailo: Init module. driver version 4.21.0
[ 6.171236] hailo 0001:01:00.0: Probing on: 1e60:2864…
[ 6.171245] hailo 0001:01:00.0: Probing: Allocate memory for device extension, 13192
[ 6.171255] hailo 0001:01:00.0: enabling device (0000 → 0002)
[ 6.171261] hailo 0001:01:00.0: Probing: Device enabled
[ 6.171279] hailo 0001:01:00.0: Probing: mapped bar 0 - 00000000e97bf5d2 16384
[ 6.171285] hailo 0001:01:00.0: Probing: mapped bar 2 - 000000002edab60d 4096
[ 6.171289] hailo 0001:01:00.0: Probing: mapped bar 4 - 00000000d8c01bbe 16384
[ 6.171294] hailo 0001:01:00.0: Probing: Setting max_desc_page_size to 4096, (page_size=4096)
[ 6.171305] hailo 0001:01:00.0: Probing: Enabled 64 bit dma
[ 6.171311] hailo 0001:01:00.0: Probing: Using userspace allocated vdma buffers
[ 6.171320] hailo 0001:01:00.0: Disabling ASPM L0s
[ 6.171325] hailo 0001:01:00.0: Successfully disabled ASPM L0s
[ 6.171789] hailo 0001:01:00.0: Writing file hailo/hailo8_fw.bin
[ 6.202052] Failed with error -2 to write file hailo/hailo8_fw.bin
[ 6.202066] hailo 0001:01:00.0: Failed writing NNC firmware files. err -2
[ 6.202070] hailo 0001:01:00.0: FW loaded, took 30 ms
[ 6.202072] hailo 0001:01:00.0: Firmware load failed
[ 6.202147] hailo 0001:01:00.0: Failed activating board -2
[ 6.202173] hailo 0001:01:00.0: probe with driver hailo failed with error -2
airaai@airaai:~$ hailortcli scan
Hailo devices not found