Rockpi4/dev/u-boot/pxe - Revision history

Shine: /* Diskless start */

2020-06-29T06:58:45Z

‎Diskless start

Shine: /* Diskless start */

2020-06-29T06:55:07Z

‎Diskless start

Shine at 06:12, 29 June 2020

2020-06-29T06:12:10Z

Brian.lee: /* Step 2: run pxe boot cammand */

2019-11-01T09:11:15Z

‎Step 2: run pxe boot cammand

Brian.lee: /* Step 2: run pxe boot cammand */

2019-11-01T09:10:51Z

‎Step 2: run pxe boot cammand

Brian.lee at 08:49, 1 November 2019

2019-11-01T08:49:40Z

Show changes

Hipboi: Created page with "{{rockpi4_header}} {{Languages|rockpi4/dev/u-boot/pxe}} ROCK Pi 4 > Development > U-boot > rockpi4/dev/u-boot/px..."

2019-10-30T01:01:10Z

Created page with "{{rockpi4_header}} {{Languages|rockpi4/dev/u-boot/pxe}} ROCK Pi 4 > Development > U-boot > rockpi4/dev/u-boot/px..."

New page

{{rockpi4_header}}
{{Languages|rockpi4/dev/u-boot/pxe}}
[[rockpi4 | ROCK Pi 4]] > [[rockpi4/dev | Development]] > [[rockpi4/dev/u-boot | U-boot]] > [[rockpi4/dev/u-boot/pxe | PXE BOOT]]

PXE boot, Preboot eXecution Environment is a specification describes a standardized client-server environment that boots a software assembly, retrieved from a network. U-boot of ROCK Pi 4 supports PXE boot and it's enabled by default. This page describe how to use PXE boot on ROCK Pi 4.

@@ Line 263: / Line 263: @@
   #192.168.2.1 is gateway.
-(5). Next, '''unzip''' the root file system to the NFS directory:
+(5). Next, '''unzip''' the root file system to the NFS directory:<br/>
 Unzip the file system:
   $ tar -xzf linaro-stretch-alip-20200623-1.tar.gz -C /home/xxx/  #After unzipping, you will get the binary folder.

← Older revision		Revision as of 06:55, 29 June 2020
Line 195:		Line 195:

	==Diskless start==		==Diskless start==
		+	Diskless startup means that the operating system can be started without a disk (EMMC or sdcard or nvme). Diskless startup usually uses the DHCP, TFTP and NFS functions of uboot,
		+	This time, we will use another way to realize diskless startup. We will combine '''PXE of network card''' with '''NFS of uboot''' to realize diskless startup.
		+
		+	===You nead to prepare===
		+	*1. rockpi4;
		+	*2. server host (ubuntu);
		+	*3. Ethernet Cable;
		+	*4. Serial port line;
		+
		+
		+	===How to do===
		+	1. Download '''uboot''' to [https://wiki.radxa.com/Rockpi4/dev/spi-install SPI flash] on rockpi4;<br>
		+	2. Install '''TFTP''' and '''NFS''' server on the server host(PC):<br/>
		+	(1). '''NFS''' server installation:
		+	xxx@xxx:~$ sudo apt-get install nfs-kernel-server
		+	xxx@xxx:~$ mkdir -p /home/xxx/nfs_rootfs
		+	xxx@xxx:~$ sudo vim /etc/exports
		+	/home/xxx/nfs_rootfs *(rw,nohide,insecure,no_subtree_check,async,no_root_squash)
		+	xxx@xxx:~$ sudo service nfs-kernel-server restart #Restart service
		+	xxx@xxx:~$ sudo mount -t nfs 127.0.0.1:/home/xxx/nfs_rootfs /mnt #Test services for NFS
		+
		+	(2). '''TFTP''' server installation:
		+	xxx@xxx:~$ sudo apt-get install tftp-hpa tftpd-hpa
		+	xxx@xxx:~$ mkdir -p /home/xxx/tftpboot
		+	xxx@xxx:~$ chmod 777 /home/xxx/tftpboot
		+	xxx@xxx:~$ sudo vim /etc/default/tftpd-hpa
		+	TFTP_DIRECTORY="/home/xxx/tftpboot"
		+	TFTP_OPTIONS="-l -c -s"
		+	xxx@xxx:~$ sudo service tftpd-hpa restart #Restart service
		+
		+	3. Put the '''kernel and DTB''' in the '''TFT''' directory, and extract the '''root file system''' to the '''NFS''' directory. The operation is as follows:<br/>
		+	(1). '''Update''' the kernel in Debian of rockpi4:
		+	root@linaro-alip:~# apt-get update
		+	root@linaro-alip:~# apt install linux-4.4-latest -y
		+	...
		+	Setting up linux-headers-4.4.154-110-rockchip-gcef30e88a9f5 (4.4.154-110-rockchip) ...
		+	Setting up linux-4.4-latest (4.4.154-110-rockchip) ...
		+	root@linaro-alip:~#
		+
		+	(2). '''Copy''' the latest kernel and other files in the boot directory of Debian (you need to update the kernel to version 110):
		+
		+	root@linaro-alip:/boot# cp * /media/linaro/1877-4F6E/boot/ -r #This is my U stick
		+
		+	(3). In the server (PC), copy all files in the boot directory of the U disk to the TFTP Directory:
		+
		+	xxx@xxx:/data/tftp_server$ cp /media/yulingle/1877-4F6E/boot/* . -r
		+
		+	(4). '''Create''' a configuration file for PXE to read:
		+	xxx@xxx:/data/tftp_server$ mkdir pxelinux.cfg
		+	xxx@xxx:/data/tftp_server$ cd pxelinux.cfg/
		+	xxx@xxx:/data/tftp_server/pxelinux.cfg$ cp ../extlinux/extlinux.conf .
		+	xxx@xxx:/data/tftp_server/pxelinux.cfg$ vim 01-d2-13-dc-b9-d4-10 #The physical address of the network card can be obtained by entering print ehaddr in the command line of uboot
		+	timeout 10
		+	menu title select kernel
		+
		+	label kernel-4.4.154-110-rockchip-gcef30e88a9f5
		+	kernel /vmlinuz-4.4.154-110-rockchip-gcef30e88a9f5
		+	devicetreedir /dtbs/4.4.154-110-rockchip-gcef30e88a9f5
		+	initrd initrd.img-4.4.154-110-rockchip-gcef30e88a9f5
		+	append earlyprintk console=ttyFIQ0,1500000n8 init=/sbin/init root=/dev/nfs rw nfsroot=192.168.2.181:/home/xxx/nfs_rootfs,v3 ip=192.168.2.244:192.168.2.181:192.168.2.1:255.255.255.0:xxx::off
		+	rootwait
		+	#The contant of 01-d2-13-dc-b9-d4-10 file can copy from pxelinux.cfg/extlinux.conf
		+	#192.168.2.181 is IP of server.
		+	#/home/xxx/nfs_rootfs is the directory where the root file system resides.
		+	#v3 is version number of nfs.
		+	#xxx is hostname of your server host.
		+	#192.168.2.1 is gateway.
		+
		+	(5). Next, '''unzip''' the root file system to the NFS directory:
		+	Unzip the file system:
		+	$ tar -xzf linaro-stretch-alip-20200623-1.tar.gz -C /home/xxx/ #After unzipping, you will get the binary folder.
		+	$ mv binary nfs_rootfs #nfs_rootfs is the directory name specified in the /etc/exports file.
		+	'''linaro-stretch-alip-20200623-1.tar.gz''' The creation of the root file system can refer to [https://wiki.radxa.com/Rockpi4/dev/Debian here].
		+
		+	4、Start rockpi4, enter the uboot command line, and '''set IP''':
		+	=> setenv ipaddr xx.xx.xx.xx
		+	=> setenv serverip xx.xx.xx.xx #The IP address of rockpi4 and server must be in the same network segment.
		+
		+	'''Using PXE'''：
		+	=> pxe get
		+	=> pxe boot
		+
		+
		+	5、When the kernel is '''started successfully''' and the NFS file system is mounted, the following is displayed:
		+	Starting Update UTMP about System Runlevel Changes...
		+	[ OK ] Started Update UTMP about System Runlevel Changes.
		+	[ 27.195702] tty_port_close_start: tty->count = 1 port count = 2.
		+
		+	Debian GNU/Linux 9 linaro-alip ttyFIQ0
		+
		+	linaro-alip login: root (automatic login)
		+
		+	Linux linaro-alip 4.4.154-110-rockchip-gcef30e88a9f5 #1 SMP Mon Jun 22 07:37:10 UTC 2020 aarch64
		+
		+	The programs included with the Debian GNU/Linux system are free software;
		+	the exact distribution terms for each program are described in the
		+	individual files in /usr/share/doc/*/copyright.
		+
		+	Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
		+	permitted by applicable law.
		+	root@linaro-alip:~#
		+	root@linaro-alip:~#
		+	root@linaro-alip:~#
		+	root@linaro-alip:~#

← Older revision		Revision as of 06:12, 29 June 2020
Line 193:		Line 193:

	and now,your kernel is booting up		and now,your kernel is booting up
		+
		+	==Diskless start==

@@ Line 100: / Line 100: @@
    Bytes transferred = 401 (191 hex)
    Config file found
-   '''=> pxe boot'''
+   '''=>pxe boot'''
    missing environment variable: bootfile
    Retrieving file: /hw_intfc.conf

@@ Line 85: / Line 85: @@
 ====Step 2: run pxe boot cammand====
-when you run bootcmd_pxe,uboot will get some boot files from your tftp server.as follows:
+when you run pxe cammand,uboot will get some boot files from your tftp server.as follows:
-   =>run bootcmd_pxe
+   '''=>pxe get'''
    missing environment variable: pxeuuid
    missing environment variable: bootfile
    Retrieving file: pxelinux.cfg/01-be-73-e6-4e-04-2b
    Speed: 1000, full duplex
    Using ethernet@fe300000 device
@@ Line 97: / Line 96: @@
    Load address: 0x600000
    Loading: #
-.3 KiB/s
+.6 KiB/s
    done
    Bytes transferred = 401 (191 hex)
    Config file found
    missing environment variable: bootfile
    Retrieving file: /hw_intfc.conf