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问为什么udev规则没有触发？
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Unix & Linux用户

提问于 2020-10-27 07:18:17

回答 1查看 457关注 0票数 1

我有一个udev规则文件，位于/etc/udev/ rule es.d/usbmount.ules中，其内容如下：

ACTION=="add", KERNEL=="sd*[!0-9]", RUN+="/tmp/debug.sh"

在创建规则之后，我做到了：

chmod +x /tmp/debug.sh
udevadm control --reload-rules

此规则的目的是在插入usb块设备(拇指驱动器、硬盘等)时运行脚本。我正在撕扯我的头发，为什么它没有触发。当USB3.0端口上的U盘硬盘连接到系统上时，udevadmmonitor会给我以下信息。

KERNEL[367.932459] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2 (usb)
KERNEL[367.934622] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0 (usb)
KERNEL[367.935236] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0 (scsi)
KERNEL[367.935301] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/scsi_host/host0 (scsi_host)
KERNEL[367.935414] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0 (usb)
KERNEL[367.935527] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2 (usb)
UDEV  [367.937750] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2 (usb)
UDEV  [367.939195] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0 (usb)
UDEV  [367.939940] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0 (scsi)
UDEV  [367.945817] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/scsi_host/host0 (scsi_host)
UDEV  [367.947464] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0 (usb)
UDEV  [367.950394] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2 (usb)
KERNEL[368.957786] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0 (scsi)
KERNEL[368.957902] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
KERNEL[368.957993] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
KERNEL[368.958128] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_generic/sg0 (scsi_generic)
KERNEL[368.958250] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
KERNEL[368.960906] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
UDEV  [368.961035] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0 (scsi)
UDEV  [368.965594] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [368.971313] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
UDEV  [368.973129] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
UDEV  [368.975431] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_generic/sg0 (scsi_generic)
UDEV  [368.976153] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
KERNEL[369.010196] add      /devices/virtual/bdi/8:0 (bdi)
UDEV  [369.011230] add      /devices/virtual/bdi/8:0 (bdi)
KERNEL[369.270352] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
KERNEL[369.270455] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block)
KERNEL[369.276694] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [369.874116] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
UDEV  [370.252695] add      /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block)
UDEV  [370.275646] bind     /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2/2-2:1.0/host0/target0:0:0/0:0:0:0 (scsi)

机器信息：

OS: Raspbian GNU/Linux 10 (buster)
Kernel: 5.4.72-v7l+

debug.sh的唯一含量是echo "TESTING" >> /tmp/debuglog.txt。没有创建Debuglog.txt。

这条规则似乎没有被触发。为什么？我能做些什么来解决这个问题？

udev

usb-drive

回答 1

Unix & Linux用户

发布于 2020-10-27 07:32:08

udev在某些系统上(全部？)需要执行所有脚本的绝对路径。如果要执行shell脚本，则必须指定shell。为此，我不得不将其更改为：

ACTION=="add", KERNEL=="sd*[!0-9]", RUN+="/bin/bash /tmp/debug.sh"

票数 0

页面原文内容由Unix & Linux提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://unix.stackexchange.com/questions/616584

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