topic Re: iMX6qsabresd--TFTP&NFS problem in i.MX Processors

iMX6qsabresd--TFTP&NFS problem

zhangmeiyu — Sat, 27 May 2017 13:43:46 GMT

Hi :

I have started ubuntu14.04.1 on the board through i.MX6q SABRE Board for Smart Devices - Linux on ARM - eewiki ,all the things needed are in the SD card.Now i want to start the linux kernel through TFTP and access the rootfs on the host via NFS.Through the first way I got the image file named zImage and the rootfs supposed it named ubuntu14.04.1. I have put them in the TFTP shared directory and NFS shared directory in the host.Then I should set the parameters on the UBOOT command line which has done as follow:

setenv ipaddr <myipaddr>

setenv serverip <my serverip>

setenv gatewayip <my gatewayip>

setenv ehtaddr <my ethaddr>

setenv ip_dyn no

setenv nfsroot /home/nfs

setenv image zImage

setenv loadaddr 0x12000000

ok,the problem is that,I don't know how to set the remaining parameters such as bootargs,bootcmd or more else……

And I want to know if the image and the rootfs I used are correct, if not ,can someone provide me a correct one?

Thanks a lot .

Mary

Re: iMX6qsabresd--TFTP&NFS problem

Yuri — Mon, 29 May 2017 04:07:18 GMT

Hello,

Please use "i.MX Linux® User's Guide" of NXP Linux BSP docs,
in particular sections 4.7 (Running Linux OS on the target),
4.7.5 (Running the Linux image from NFS), 4.4.1.1 (Downloading
an image to MMC/SD).

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0-LINUX-DOCS&Parent_nodeId=1337699481071706174845&Parent_pageType…

Have a great day,
Yuri

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Re: iMX6qsabresd--TFTP&NFS problem

zhangmeiyu — Wed, 31 May 2017 02:33:20 GMT

Hi Yuri,

Thanks for replying.

I have followed the "i.MX Linux® User's Guide",in particular sections you said,but it still doesn't work .Here are my settings and the start information

Hit any key to stop autoboot: 0

=> print

baudrate=115200

boot_fdt=try

bootcmd=setenv mmcdev 1;setenv mmckernel 0;run mmcboot;setenv mmcdev 0;setenv mmckernel 0;run mmcboot;

bootdelay=1

bootscript=echo Running bootscript from mmc ...; source

console=ttymxc0,115200

emmcdev=2

ethact=FEC

ethaddr=00:04:9f:03:ef:78

ethprime=FEC

fdt_addr=0x18000000

fdt_file=imx6q-sabresd.dtb

fdt_high=0xffffffff

image=zImage

initrd_high=0xffffffff

ip_dyn=yes

loadaddr=0x12000000

loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};

loadfdt=echo loading ${fdtdir}/${fdt_file} ...; load mmc ${bootpart} ${fdt_addr} ${fdtdir}/${fdt_file}

loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}

loadrd=load mmc ${bootpart} ${rdaddr} ${bootdir}/${rdfile}; setenv rdsize ${filesize}

mmcargs=setenv bootargs console=${console}${optargs} root=${mmcroot} rootfstype=${mmcrootfstype} ${cmdline}

mmcboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev};setenv bootpart ${mmcdev}:1; echo Checking for: /uEnv.txt ...;if test -e mmc ${bootpart} /;

mmcboot_old=echo Booting from mmc ...; run mmcargs; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loadaddr} - ${fdt_addr}; else if tes;

mmcdev=1

mmcpart=1

mmcroot=/dev/mmcblk0p2 ro

mmcrootfstype=ext4 rootwait fixrtc

netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp

netboot=echo Booting from net ...; run netargs; if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} ${image}; if test ${boot_fdt} = yes;

rdaddr=0x12A00000

script=boot.scr

uname_boot=setenv bootdir /boot; setenv bootfile vmlinuz-${uname_r}; if test -e mmc ${bootpart} ${bootdir}/${bootfile}; then echo loading ${bootdir}/${bootfile} ...; run loadi;

update_emmc_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if ${get_cmd} ${update_sd_firmware_filename}; then if mmc dev ${emmcdev} i

update_sd_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if mmc dev ${mmcdev}; then if ${get_cmd} ${update_sd_firmware_filename}; thi

Environment size: 5040/8188 bytes

=> setenv serverip 192.168.1.18

=> setenv bootfile zImage

=> setenv fdt_file imx6q-sabresd

=> setenv ethaddr 00:04:9F:03:EF:78

=> saveenv

Saving Environment to MMC...

Writing to MMC(1)... done

=> dhcp

BOOTP broadcast 1

BOOTP broadcast 2

*** Unhandled DHCP Option in OFFER/ACK: 52

DHCP client bound to address 192.168.1.16 (1002 ms)

Using FEC device

TFTP from server 192.168.1.18; our IP address is 192.168.1.16

Filename '�'.

Load address: 0x12000000

Loading: *

TFTP error: 'File not found' (1)

Not retrying...

=> setenv ipaddr 192.168.1.17

=> save

Saving Environment to MMC...

Writing to MMC(1)... done

=> mmc dev

MMC: no card present

=> tftpboot ${fdt_addr} ${fdt_file}

Using FEC device

TFTP from server 192.168.1.18; our IP address is 192.168.1.17

Filename 'imx6q-sabresd'.

Load address: 0x18000000

Loading: *

TFTP error: 'File not found' (1)

Not retrying...

=> mmc write ${fdt_addr} 0x5000 0x800

MMC: no card present

=> setenv consoleinfo 'console=ttymxc0,115200'

=> setenv loadaddr 0x12000000

=> setenv fdt_addr 0x18000000

Unknown command 'setenv' - try 'help'

=> setenv fdt_addr 0x18000000

=> setenv fdt_file 'imx6q-sabresd.dtb'

=> setenv rootfsinfo 'root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp'

=> setenv rootfsinfo 'root=/dev/nfs ip=dhcp weim-nor nfsroot=${serverip}:${nfsroot},v3,tcp'

=> setenv rootfsinfo 'ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs rootwait rw mtdparts=gpmi-nand:16m(boot),16m(kernel),16m(dtb),-(rootfs)'

=> setenv rootfsinfo 'root=/dev/mmcblk0p2 rootwait rw'

=> setenv bootargsset 'setenv bootargs ${consoleinfo} ${rootfsinfo} ${displayinfo} ${special}'

=> setenv bootcmd 'run bootargsset; {settings for device}; bootz ${loadaddr} - ${fdt_addr}'

=> setenv rootfsinfo 'setenv bootargs ${bootargs} root=/dev/nfs ip=dhcp nfsroot=${serverip}:/home/nfs,v3,tcp'

=> setenv bootcmd_net 'run rootfsinfo; dhcp ${image}; dhcp ${fdt_addr} ${fdt_file}; bootz ${loadaddr} - ${fdt_addr}'

=> setenv bootcmd 'run bootcmd_net'

=> saveenv

Saving Environment to MMC...

Writing to MMC(1)... done

restart

start information

U-Boot 2014.10-dirty (Mar 15 2017 - 20:03:15)

CPU: Freescale i.MX6D rev1.2 at 792 MHz

Reset cause: POR

Board: MX6-SabreSD

I2C: ready

DRAM: 1 GiB

MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2

MMC: no card present

MMC init failed

Using default environment

No panel detected: default to Hannstar-XGA

Display: Hannstar-XGA (1024x768)

In: serial

Out: serial

Err: serial

PMIC: PFUZE100 ID=0x10

Net: FEC [PRIME]

Hit any key to stop autoboot: 0

MMC: no card present

so,when save the environment variable,it shows

=> saveenv

Saving Environment to MMC...

Writing to MMC(1)... done

but it shows

MMC: no card present

What should I do with it?

Regards,

Mary

Re: iMX6qsabresd--TFTP&NFS problem

Yuri — Wed, 31 May 2017 02:50:59 GMT

Hello,

> TFTP error: 'File not found' (1)

Looks like FTP server is not set properly or it does not contain the needed files.

What are FTP server settings ?

Regards,

Yuri.

Re: iMX6qsabresd--TFTP&NFS problem

zhangmeiyu — Wed, 31 May 2017 06:23:41 GMT

hi,

My TFTP server is built on my PC's virtual machine.

zmy@zmy-virtual-machine:~$ sudo /etc/init.d/xinetd restart
[sudo] password for zmy:
* Stopping internet superserver xinetd [ OK ]
* Starting internet superserver xinetd [ OK ]
zmy@zmy-virtual-machine:~$ sudo netstat -a|grep tftp
udp 0 0 *:tftp *:*

then I test it again ,the result is as follows,it also success

root@zmy-virtual-machine:~# cd /var
root@zmy-virtual-machine:/var# tftp localhost
tftp> get test
tftp> q
root@zmy-virtual-machine:/var# cat test
success le hahahahaha
root@zmy-virtual-machine:/var#

My TFTP share directory has the file as follows:

Regards,

Mary

Re: iMX6qsabresd--TFTP&NFS problem

Yuri — Tue, 04 Jul 2017 08:15:47 GMT

Hello,

the following may be helpful :

https://community.nxp.com/docs/DOC-103717

Regards,

Yuri.