RK3399J uboot无saveenv的命令
最近遇到一个很奇葩的问题，uboot 无saveenv的环境变量保存命令，很尴尬，烧录官方的也没有
但是官方nfs环境搭建文档是说有saveenv命令的
如图：
uboot操作：
=>
=>
=>
=>
=> saveenv
Unknown command 'saveenv' - try 'help'
=> s
save setcurs setenv sf showvar size sleep source sysboot
=> s
save setcurs setenv sf showvar size sleep source sysboot
=> s
save setcurs setenv sf showvar size sleep source sysboot
=> help
? - alias for 'help'
base - print or set address offset
bdinfo- print Board Info structure
boot - boot default, i.e., run 'bootcmd'
boot_android- Execute the Android Bootloader flow.
bootd - boot default, i.e., run 'bootcmd'
bootefi - Boots an EFI payload from memory
bootelf - Boot from an ELF image in memory
booti - boot arm64 Linux Image image from memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootrkp - Boot Linux Image from rockchip image type
bootvx- Boot vxWorks from an ELF image
bootz - boot Linux zImage image from memory
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dhcp - boot image via network using DHCP/TFTP protocol
dm - Driver model low level access
dump_bidram- Dump bidram layout
dump_sysmem- Dump sysmem layout
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
erase - erase FLASH memory
exit - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls- list files in a directory (default /)
ext4load- load binary file from a Ext4 filesystem
ext4ls- list files in a directory (default /)
ext4size- determine a file's size
false - do nothing, unsuccessfully
fastboot- use USB or UDP Fastboot protocol
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
fatsize - determine a file's size
fatwrite- write file into a dos filesystem
fdt - flattened device tree utility commands
flinfo- print FLASH memory information
fstype- Look up a filesystem type
go - start application at address 'addr'
gpt - GUID Partition Table
gzwrite - unzip and write memory to block device
help - print command description/usage
iminfo- print header information for application image
imxtract- extract a part of a multi-image
iomem - Show iomem data by device compatible(high priority) or node name
itest - return true/false on integer compare
lcdputs - print string on video framebuffer
load - load binary file from a filesystem
load_android- load Android Boot image from storage.
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loadx - load binary file over serial line (xmodem mode)
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
ls - list files in a directory (default /)
lzmadec - lzma uncompress a memory region
md - memory display
mdio - MDIO utility commands
mii - MII utility commands
mm - memory modify (auto-incrementing address)
mmc - MMC sub system
mmcinfo - display MMC info
mw - memory write (fill)
nfs - boot image via network using NFS protocol
nm - memory modify (constant address)
part - disk partition related commands
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
protect - enable or disable FLASH write protection
pxe - commands to get and boot from pxe files
rbrom - Perform RESET of the CPU
reset - Perform RESET of the CPU
rkimgtest- Test if storage media have rockchip image
rockchip_show_bmp- load and display bmp from resource partition
rockchip_show_logo- load and display log from resource partition
rockusb - Use the rockusb Protocol
run - run commands in an environment variable
save - save file to a filesystem
setcurs - set cursor position within screen
setenv- set environment variables
sf - SPI flash sub-system
showvar - print local hushshell variables
size - determine a file's size
sleep - delay execution for some time
source- run script from memory
sysboot - command to get and boot from syslinux files
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
time - run commands and summarize execution time
true - do nothing, successfully
ums - Use the UMS
unzip - unzip a memory region
usb - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version
是不是其他命令代替saveenv这个命令 我也没发现有....楼主踩完坑没，有方法指导下？ 有没有解决该问题，求助 编译uboot的时候配置一下，选择MMC作为存储设备。 u-boot根目录下make menuconfig
存储配置：
Environment--->
Select the location of the environment
(X) Environment in a block device 可以 潇潇 发表于 2021-4-30 17:08
u-boot根目录下make menuconfig
存储配置：
Environment--->
可以执行saveenv了，但是保存不了环境变量，你们有遇到这种情况吗 可以
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