I input printenv in u-boot mode, it is not normal.

[bsjang]

Switch did not work properly.
I entered printenv in u-boot mode.
The setting is not normal.
Set Up Properly
I know it's this setting.
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bootargs=
bootcmd=run miniboot
bootdelay=1
loads_echo=1
ipaddr=192.168.10.1
serverip=
rootpath=
gatewayip=
netmask=255.255.255.0
hostname=OS68xx
bootfile=
loadaddr=0x1000000
serialmode=modemControlOff
bootflags=0x0
baudrate=9600
stdin=serial
stdout=serial
stderr=serial
miniboot=bootm 0xff900000
osboot=run miniboot
Environment size: 316/8188 bytes
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My set value is like this.

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=> printenv
bootcmd=run=miniboot
serialmode=modemControlOff
stdin=serial
stdout=serial
stderr=serial
miniboot=bootm 0xff900000
osboot=run miniboot
bootflags=0x0
ramsize=0x20000000

Environment size: 168/8188 bytes
-------------------------------------------------

Setenv setting is not allowed.
I can't tell what to do.