How to scan New network card or any other devices in linux

linux linux-networking
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If the card isn't detected and configured instantly when you hotplug it, then run udevadm trigger as root.

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Amit Biyani
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Amit Biyani

Updated on September 18, 2022

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  • Amit Biyani
    Amit Biyani almost 2 years

    I am trying to add a New Network card into Machine which has Linux installed. But my problem is, I cannot reboot the Linux host to detect the new network card, is there any workaround for this? I know, linux supports adding new disk without reboot by scanning scsi bus. Any idea, How to scan New network card?

    Kernel Version = 2.6.18-308.el5

    • Kassandry
      Kassandry almost 9 years
      Have you tried as root echo 1 >/sys/bus/pci/rescan after making sure all the hotplug modules or kernel config directives are enabled?
  • Amit Biyani
    Amit Biyani over 11 years
    Not worked!!!! no messages in dmesg logs regarding the same
  • Michael Hampton
    Michael Hampton over 11 years
    In that case, you can reboot.
  • Amit Biyani
    Amit Biyani over 11 years
    I know reboot will solve my problem, but somehow i would like to know to hotplug a device in linux.

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