02-18-2020 09:54 AM
I'm working with a Zynq Ultrascale+ MPSoC SOM + Carrier board Petalinux system. I am able to mount an NFS directory from my Host machine onto my Zynq Ultrascale+ Target.
I have not been successful in NFS booting from this directory.
NFS MOUNT (IS WORKING)
My Host machine is a Ubuntu 18.04 system and I have followed instructions at https://help.ubuntu.com/community/SettingUpNFSHowTo to configure the NFS server as follows :
// kernel server package
// bind mount NFS share directory
// also place in fstab
// add this line
// export directories
On my target, I power the system into uboot, set my host machines IP address, and tftp load FIT image.ub and FPGA system.bit from my host.
// client side
// power on board into uboot
// tftp boot the image.ub and system.bit
After the kernel boots, I set the Targets IP address and mount the Hosts NFS directory.
// mount NFS server directory
At this point the target has read access (from /home/root/nfs_share) to the Hosts NFS mounted directory.
NFS BOOT (NOT WORKING)
I have not been able to get the boot from NFS working. Below are the steps I have taken to attempt the NFS boot.
// follow instructions in ug1144 building the target image for boot from NFS directory
Image Packaging Configuration ---> Root filesystem type --->.
Select NFS as the RootFS type.
Select Location of NFS root directory and set it to <NFS_SHARE_ROOT>/NFSshare
Networking support -> IP: kernel level configuration
File systems -> Network file systems -> Root file systems on NFS
// results in NFS_BOOT_IMAGE (image.ub)
// populate NFS directory with rootfs
// reboot to uboot
// tftp boot target using the NFS_BOOT_IMAGE built for NFS booting (above)
The kernel tftp loads and get hung at :
9.417500] IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.51
[ 9.425150] IP-Config: Complete:
[ 9.428377] device=eth0, hwaddr=00:01:02:03:04:05, ipaddr=192.168.1.51, mask=255.255.255.0, gw=192.168.1.1
[ 9.438452] host=192.168.1.51, domain=, nis-domain=(none)
[ 9.444275] bootserver=0.0.0.0, rootserver=0.0.0.0, rootpath= nameserver0=192.168.1.1
[ 9.453826] macb ff0e0000.ethernet: gem-ptp-timer ptp clock unregistered.
[ 9.461478] ALSA device list:
[ 9.464444] #0: DisplayPort monitor
Q: Do any of the steps above for Host NFS boot server configuration, Petalinux kernel build, or Target uboot configuration look incorrect?
Thanks for any tips.
02-20-2020 10:25 AM
Thanks @watari ,
I added nfs version info to bootargs and was able to boot from nfs hosted rootfs,
setenv bootargs='console=ttyPS0,115200n8 ip=dhcp root=/dev/nfs rootfstype=nfs nfsroot=192.168.1.58:/export/users,port=2049,nfsvers=3,tcp rw loglevel=8 nfsrootdebug'
02-02-2021 02:36 PM
Bump. I'd also like to know why v4 is not supported. This is still an issue in PetaLinux 2020.2.
Also, is there a way in petalinux-config to automatically append ,nfsvers=3 to the kernel bootargs so that I don't have to manually modify it each time?