PetaLinux_User_udev

PetaLinux_User_udev

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1.版本说明

日期	作者	版本说明
2025XXXX	风释雪	初始版本

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2.概述

• PetaLinux2023.2/2024.1
• 修复PetaLinux U盘挂载/下载的BUG；

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3.默认脚本

• MPSOC Linux启动
• 重点查看脚本 /etc/udev/scripts/mount.sh
• 该默认脚本存在BUG（和版本有关）

4.用户脚本

• 增加路径 ./project_dir/project-spec/meta-user/recipes-core/udev-extraconf/
• 增加文件 ./project_dir/project-spec/meta-user/recipes-core/udev-extraconf/files/mount.sh
• 增加文件 ./project_dir/project-spec/meta-user/recipes-core/udev-extraconf/udev-extraconf_%.bbappend

# ./project_dir/project-spec/meta-user/recipes-core/udev-extraconf/files/mount.sh
#
# 建议：原始脚本在MPSOC LINUX运行以后，实际板子上会有， 先拷贝出来备份，
#   然后修改下面指定部分，或者自己调试BUG发生的位置，然后修改，
#   目前该BUG，只出现在自动卸载上，其他部分没遇到BUG；
#
# 修改部分重点：
if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; thenname="`basename "$DEVNAME"`"tmpfile=`find /tmp/ | grep "\.automount-${name}[1-9]"`if [ ! -e "/sys/$DEVPATH" -a -e "$tmpfile" ]; thenlogger "mount.sh/remove" "cleaning up $DEVNAME, was mounted by the auto-mounter"for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `do$UMOUNT $mntdone# Remove mount directory created by the auto-mounter# and clean up our tmp cache filemntdir=`cat "$tmpfile"`rm_dir "$MOUNT_BASE/$mntdir"rm "$tmpfile"fi
fi

# ./project_dir/project-spec/meta-user/recipes-core/udev-extraconf/udev-extraconf_%.bbappendFILESEXTRAPATHS:prepend := "${THISDIR}/files:"SRC_URI:append = " file://mount.sh"do_install:append() {install -d ${D}${sysconfdir}/udev/scriptsinstall -m 0755 ${WORKDIR}/mount.sh ${D}${sysconfdir}/udev/scripts/mount.sh
}

• 目录结构