在buildroot config中设置密码不生效 | Setting a password in buildroot config does not take effect

2025-08-27 6:10

我想更改buildroot的默认密码，但是当我使用"./build.sh buildrootconfig"命令打开buildroot的menuconfig，更改位于System configuration -> Root password，但是重新编译之后还是旧的密码luckfox，但是我编辑的其他选项生效了，例如(handy) System hostname和(Welcome to Handy Linux)System banner，只有密码还是原来的。以下是完整的buildroot defconfig

I want to change the default password of Buildroot. However, when I use the command ./build.sh buildrootconfig to open Buildroot's menuconfig and modify the setting located at System configuration -> Root password, the old password "luckfox" still remains after recompiling.
Nevertheless, other options I edited have taken effect—for example, the (handy) System hostname and the (Welcome to Handy Linux) System banner. Only the password stays unchanged.
Below is the complete Buildroot defconfig.

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BR2_arm=y
BR2_cortex_a7=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
BR2_TOOLCHAIN_EXTERNAL_PATH="../../../../tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf"
BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="arm-rockchip830-linux-uclibcgnueabihf"
BR2_TOOLCHAIN_EXTERNAL_GCC_8=y
BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_10=y
BR2_TOOLCHAIN_EXTERNAL_WCHAR=y
BR2_TOOLCHAIN_EXTERNAL_HAS_SSP=y
BR2_TOOLCHAIN_EXTERNAL_CXX=y
BR2_PRIMARY_SITE="http://sources.buildroot.net"
BR2_KERNEL_MIRROR="https://mirror.bjtu.edu.cn/kernel/"
BR2_GNU_MIRROR="http://mirrors.nju.edu.cn/gnu/"
BR2_LUAROCKS_MIRROR="https://luarocks.cn"
BR2_CPAN_MIRROR="http://mirrors.nju.edu.cn/CPAN/"
BR2_OPTIMIZE_3=y
BR2_TARGET_GENERIC_HOSTNAME="handy"
BR2_TARGET_GENERIC_ISSUE="Welcome to Handy Linux"
BR2_TARGET_GENERIC_ROOT_PASSWD="1234"
BR2_SYSTEM_BIN_SH_BASH=y
BR2_SYSTEM_ENABLE_NLS=y
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_COREMARK=y
BR2_PACKAGE_COREMARK_PRO=y
BR2_PACKAGE_E2FSPROGS=y
BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
BR2_PACKAGE_XORG7=y
BR2_PACKAGE_XTERM=y
BR2_PACKAGE_EVTEST=y
BR2_PACKAGE_PYTHON3=y
BR2_PACKAGE_PYTHON3_SSL=y
BR2_PACKAGE_PYTHON_AIOHTTP=y
BR2_PACKAGE_PYTHON_CLICK=y
BR2_PACKAGE_PYTHON_ITSDANGEROUS=y
BR2_PACKAGE_PYTHON_JINJA2=y
BR2_PACKAGE_PYTHON_PERIPHERY=y
BR2_PACKAGE_PYTHON_PILLOW=y
BR2_PACKAGE_PYTHON_SERIAL=y
BR2_PACKAGE_PYTHON_SETUPTOOLS=y
BR2_PACKAGE_PYTHON_SMBUS_CFFI=y
BR2_PACKAGE_PYTHON_SPIDEV=y
BR2_PACKAGE_PYTHON_WERKZEUG=y
BR2_PACKAGE_GNUTLS=y
BR2_PACKAGE_LIBMD=y
BR2_PACKAGE_FREETYPE=y
BR2_PACKAGE_LIBDRM=y
BR2_PACKAGE_DTC=y
BR2_PACKAGE_DTC_PROGRAMS=y
BR2_PACKAGE_LIBV4L=y
BR2_PACKAGE_LIBV4L_UTILS=y
BR2_PACKAGE_LIBRSYNC=y
BR2_PACKAGE_PCRE2=y
BR2_PACKAGE_PCRE2_16=y
BR2_PACKAGE_PCRE2_32=y
BR2_PACKAGE_IPERF=y
BR2_PACKAGE_IPERF3=y
BR2_PACKAGE_LRZSZ=y
BR2_PACKAGE_NTP=y
BR2_PACKAGE_OPENSSH=y
BR2_PACKAGE_RSYNC=y
BR2_PACKAGE_SOCAT=y
BR2_PACKAGE_BASH_LOADABLE_EXAMPLES=y
BR2_PACKAGE_DIALOG=y
BR2_PACKAGE_NEOFETCH=y
BR2_PACKAGE_TIME=y
BR2_PACKAGE_HTOP=y
BR2_PACKAGE_UTIL_LINUX_LIBMOUNT=y
BR2_PACKAGE_VIM=y
BR2_PACKAGE_HOST_DTC=y

2025-09-05 3:02

您好，密码修改请参考https://forums.luckfox.com/viewtopic.php?p=1742&hilit=passwd#p1742，rv1106使用的uclibc 交叉编译工具的crypto功能有问题，不能直接使用buildroot 设置来修改密码

2025-09-13 4:45

Crocodile wrote: ↑2025-09-05 3:02 您好，密码修改请参考https://forums.luckfox.com/viewtopic.php?p=1742&hilit=passwd#p1742，rv1106使用的uclibc 交叉编译工具的crypto功能有问题，不能直接使用buildroot 设置来修改密码

感谢您的回复，不过我并没有找到您链接中提到的：
Thanks for your reply! However, I couldn’t locate the file you mentioned:

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<Luckfox-Pico SDK>/sysdrv/tools/board/buildroot/shadow_defconfig

后来我尝试编辑以下文件来代替没有上述文件，然后按您提供的链接中的教程步骤进行，密码更改成功了。
After that I simply followed the rest of the steps in the tutorial you linked, and the password change went through without any issues.

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vim <Luckfox-Pico SDK>/project/cfg/BoardConfig_IPC/overlay/overlay-luckfox-buildroot-shadow/etc/shadow

Hope this helps anyone else running into the same snag.

2025-09-20 6:12

很抱歉 viewtopic.php?p=1742&hilit=passwd#p1742 中提到的路径是旧版本SDK的，最新的SDK将打包前需要添加的文件都移到了<Luckfox-Pico SDK>/project/cfg/BoardConfig_IPC/overlay 下面