NFS Root with Raspberry Pi (nfs_diskless: no interface)

[Randy Westlund]

On Wed, Sep 23, 2015 at 11:54:43AM +0300, Daniel Braniss wrote:
> ok, thought it was too easy. Can you send me more info so that i can reproduce it here?
> specially the ubldr stuff?
> 
> ah! try if_smsc_load=YES
> 
> danny

Okay, that's definitely the correct driver.  Looks like the pi uses a
SMSC LAN9514 ethernet module.  But I see the same output regardless of
whether that's in loader.conf or not.  The kernel seems to be finding
smsc0 just fine.  It just hasn't created the interface yet.

> ugen0.1: <DWCOTG> at usbus0
> uhub0: <DWCOTG OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0
> mmcsd0: 4GB <SDHC SU04G 8.0 SN 001FC92A MFG 12/2011 by 3 SD> at mmc0 41.6MHz/4bit/65535-block
> nfs_diskless: no interface
> Root mount waiting for: usbus0
> uhub0: 1 port with 1 removable, self powered
> ugen0.2: <vendor 0x0424> at usbus0
> uhub1: <vendor 0x0424 product 0x9512, class 9/0, rev 2.00/2.00, addr 2> on usbus0
> uhub1: MTT enabled
> Root mount waiting for: usbus0
> uhub1: 3 ports with 2 removable, self powered
> Root mount waiting for: usbus0
> ugen0.3: <vendor 0x0424> at usbus0
> smsc0: <vendor 0x0424 product 0xec00, rev 2.00/2.00, addr 3> on usbus0
> Trying to mount root from nfs:192.168.1.254:/usr/raspi_root [rw]...
> nfs_diskless: no interface
> Mounting from nfs:192.168.1.254:/usr/raspi_root failed with error -1.
> 
> Loader variables:
>   vfs.root.mountfrom=nfs:192.168.1.254:/usr/raspi_root
>   vfs.root.mountfrom.options=rw

Here's the fstab that the pi is using:

> cat /usr/raspi_root/etc/fstab
> 192.168.1.254:/usr/raspi_root / nfs rw 0 0

Here's dhcp.conf on my router:

> $ cat /etc/dhcpd.conf
> authoritative;
> option domain-name-servers 192.168.1.1;
> 
> subnet 192.168.1.0 netmask 255.255.255.0 {
>     option routers 192.168.1.1;
>     range 192.168.1.2 192.168.1.150;
>     next-server 192.168.1.254;
>     option root-path "/usr/raspi_root";
> }

Here's what ubldr sees before it loads the kernel over NFS:

> loader> show
> LINES=24
> autoboot_delay=10
> boot.netif.gateway=0.0.0.0
> boot.netif.hwaddr=b8:27:eb:28:a4:f8
> boot.netif.ip=192.168.1.33
> boot.netif.netmask=255.255.255.0
> boot.nfsroot.nfshandle=X298684cadeaf78ee0a000400000000006ed938000000000000000000X
> boot.nfsroot.nfshandlelen=28
> boot.nfsroot.path=/usr/raspi_root
> boot.nfsroot.server=192.168.1.254
> bootfile=kernel
> console=uboot
> currdev=net0:
> interpret=OK
> kernel=kernel
> kernelname=/boot/kernel/kernel
> loaddev=net0:
> loader_conf_files=/boot/loader.conf /boot/loader.conf.local
> module_path=/boot/kernel;/boot/kernel;/boot/modules;/boot/dtb
> prompt=loader>
> twiddle_divisor=1

The files I'm using are all taken from one of these two images (same
result with both):

FreeBSD-11.0-CURRENT-arm-armv6-RPI-B-20150826-r287169.img
FreeBSD-10.2-STABLE-arm-armv6-RPI-B-20150917-r287929.img

Let me know if you need any other info, and thanks for spending time on
this.

Randy
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-arm/attachments/20150923/24043269/attachment.bin>