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Linux Arch：dhcpcd 無法啟動無線服務，儘管之前可以工作

tag-icon • tag-icon linux wireless-networking arch-linux
Linux Arch：dhcpcd 無法啟動無線服務，儘管之前可以工作

我的電腦上只有無線服務（我無法實際移動它以連接乙太網路）。

當我啟動 Linux 時，我看到一條錯誤訊息：（我將 wlp0... 替換為 ）

    [FAILED] Failed to start dhcpcd on <mywirelessinterface>. See 'systemctl status dhcpcd@<mywirelessinterface>.service’ for details.

好的，我這樣做：

    # systemctl status dhcpcd@<mywirelessinterface>.service

    * dhcpcd@<mywirelessinterface>.service - dhcpcd on <mywirelessinterface>
    Loaded: loaded (/usr/lib/system/system/[email protected]: enabled)
    Active: failed (Result: resources) since <recent date and time>
    Process: 2918 ExecStart=/usr/bin/dhcpcd -q -w %I (code=exited, status=0/SUCCESS)

    <Current date and time> localhost system[1]: PID file /run/dhcpcd-<mywirelessinterface>.pid not readable (yet?) after start.
    <Current date and time> localhost system[1]: Failed to start dhcpcd on <mywirelessservice>.
    Failed to start dhcpcd on <mywirelesscervice>.
    <Current date and time> localhost system[1]: Unit dhcpcd@<mywirelessinterface>.service entered failed state.

當我使用 sudo su 手動啟動它時：

    # systemctl start dhcpcd@<mywirelessinterface>.service

它以同樣的方式失敗：

      Job for dhcpcd@<mywirelessinterface>.service failed. See ‘systemctl status netctl@<mywirelessinterface>\x2<mynetworkname>.service’ and ‘journalctl –xn’ for details.

雜誌上是這麼說的：

    # journalctl -xn

    -- Logs begin at <date, time>, end at <date, time>. --
    <Current date and time> localhost dhcpcd[4366]: <mywirelessinterface> failed to start wpa_supplicant
    <Current date and time> localhost dhcpcd[4367]: <mywirelessinterface> sucessfully initialized wpa_supplicant
    Line 1062: unknown EAP method 'SIM'. You may need to add support for this EAP method during wpa_supplicant build time configuration. See README for more information.
    Line 1062: failed to parse eap 'SIM'.
    Line 1065: failed to parse network block.
    Line 1072: unknown EAP method 'PSK'. You may need to add support for this EAP method during wpa_supplicant build time configuration. See README for more information.
    Line 1072: failed to parse eap 'PSK'.
    Line 1076: failed to parse network block.
    Line 1108: unknown EAP method 'IKEV2'. You may need to add support for this EAP method during wpa_supplicant build time configuration. See README for more information.
    Line 1108: failed to parse eap 'IKEV2'.
    Line 1111: failed to parse network block.
    Failed to read or parse configuration 'etc/wpa_supplicant/wpa_supplicant.conf'.
    <Current date and time> localhost dhcpcd[213]: <mywirelessinterface>: waiting for carrier
    <Current date and time> localhost dhcpcd[213]: <myotherinterface>: waiting for carrier
    <Current date and time> localhost dhcpcd[213]: control command: /usr/sbin/dhcpcd -k <myotherinterface>
    <Current date and time> localhost dhcpcd[213]: <myotherinterface> removing interface
    <Current date and time> localhost kernel: IPv6: ADDRCONF(NETDEV_UP): <mywirelessinterface>: link is not ready
    <Current date and time> localhost kernel: ieee80211 phy0: rt2800usb_entry_txstatus_timeout: Warning - TX status timeout for entry 10 in queue 0
    <Current date and time> localhost kernel: ieee80211 phy0: rt2800usb_entry_txstatus_timeout: Warning - TX status timeout for entry 10 in queue 0
    <Current date and time> localhost kernel: ieee80211 phy0: rt2800usb_entry_txstatus_timeout: Warning - TX status timeout for entry 10 in queue 0

我確實嘗試過 ip link, iw dev

     ip link set <mywirelessinterface> up

沒有幫助。我還沒有使用過 /etc/dhcpcd.conf 並且我不知道 wpa_supplicant 設定檔是否存在。我只是還不知道它們是什麼。幫助！

答案1

基本上，這是 wpa_supplicant 的問題：預設的 /etc/wpa_supplicant.conf 基本上都是關於文件的，它是不是有效的設定檔。以下是有效文件的簡單範例：

 ctrl_interface=/var/run/wpa_supplicant
 ap_scan=1
 fast_reauth=0
 network={
    ssid="WifiNetworkName"
    key_mgmt=WPA-PSK
    psk="WifiNetworkPassword"
    priority=5
 }

您可能想要保留舊版本（例如，只需將其重新命名為 /etc/wpa_supplicant_old.conf），因為它包含許多有用的範例。

或者，您可以透過安裝網路管理員讓您的生活變得更加簡單：有很多，netctl，wicd，我個人更喜歡 NetworkManager。你可以找到在維基百科中您需要的所有說明。只需記住停用嘗試為您管理連線的任何其他服務，您可以使用以下命令列出所有已啟用的服務

  sudo systemctl --type=service

答案2

我有類似的問題。我有一個 wifi 配置文件，但在我啟動dhcpcd有線網路後它無法啟動。

為了解決這個問題，我禁用了所有dhcpcd服務netctl並重新啟動了系統；然後它重新讀取 wifi 設定檔並再次激活

我希望這對你有幫助，我用過類似的東西：

sudo systemctl disable dhcpcd.service
sudo systemctl disable netctl.service
sudo reboot

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