我正在开发一个 Debian 8 系统，该系统在围绕 ARM926 构建的自定义硬件上运行，旨在在系统开机时自动连接 3G 调制解调器。我使用 Raspberry Pi 和 Raspbian 作为参考设置，几乎开箱即用，只需要一个用于mmcli建立连接的脚本。两个系统的内核版本都是4.1.18，默认是Raspbian，自定义系统是我修改的。
我用于测试的调制解调器是华为E3131，但目的不是限制对某些特定调制解调器的硬件支持。目的是支持内核和 ModemManager 支持的任何调制解调器，也许排除某些有问题的模型。
目前，系统中发生的事情之间唯一明显的区别与界面有关wwan0。在 Pi 系统上，一旦插入调制解调器（或者在系统启动后，如果调制解调器已插入），该接口会自动出现并在一段时间后分配一个 IP。然而，在自定义系统上，该接口不会出现在我在ifconfig没有参数的情况下命令的列表中，即使如果我命令它似乎存在ifconfig wwan0。
虽然没有出现界面，但我仍然可以使用mmcli建立连接，但似乎没有办法使用该连接。根据日志的比较和 的输出所显示的内容mmcli -m 0，调制解调器似乎确实像在 Pi 系统上一样进行连接。日志之间存在细微差别，但对我来说确实很小。 Pi 系统上也存在报告的问题。
编辑：我在两个系统上尝试了另一个调制解调器 Telewell TW-LTE/4G/3G+。我必须在自定义系统的内核中添加驱动程序并安装 libqmi-proxy，但之后发生的情况与华为 E3131 完全相同。
我在这里附上了相关的系统日志（关于华为E3131），如果需要的话我也可以提供其他信息。我只是不知道还有什么相关的。
Pi 系统日志中存在的自定义系统日志中缺少的一件事是来自 dhcpcd 和 avahi-daemon 的打印。这些在制作这些日志时没有安装，但至少仅仅安装它们并没有改变任何东西。
自定义系统的Sylog：
Feb 10 13:10:52 kernel: usb 1-1.3: new full-speed USB device number 4 using at91_ohci
Feb 10 13:10:53 kernel: usb 1-1.3: New USB device found, idVendor=12d1, idProduct=1506
Feb 10 13:10:53 kernel: usb 1-1.3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
Feb 10 13:10:53 kernel: usb 1-1.3: Product: HUAWEI Mobile
Feb 10 13:10:53 kernel: usb 1-1.3: Manufacturer: HUAWEI
Feb 10 13:10:53 kernel: usb-storage 1-1.3:1.4: USB Mass Storage device detected
Feb 10 13:10:53 kernel: scsi host2: usb-storage 1-1.3:1.4
Feb 10 13:10:53 kernel: usb-storage 1-1.3:1.5: USB Mass Storage device detected
Feb 10 13:10:53 kernel: scsi host3: usb-storage 1-1.3:1.5
Feb 10 13:10:54 kernel: scsi 2:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
Feb 10 13:10:54 kernel: scsi 2:0:0:0: Attached scsi generic sg0 type 5
Feb 10 13:10:54 kernel: scsi 3:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
Feb 10 13:10:54 kernel: sd 3:0:0:0: Attached scsi generic sg1 type 0
Feb 10 13:10:54 kernel: usbcore: registered new interface driver option
Feb 10 13:10:54 kernel: usbserial: USB Serial support registered for GSM modem (1-port)
Feb 10 13:10:54 kernel: option 1-1.3:1.0: GSM modem (1-port) converter detected
Feb 10 13:10:54 kernel: sd 3:0:0:0: [sda] Attached SCSI removable disk
Feb 10 13:10:54 kernel: usbcore: registered new interface driver cdc_ncm
Feb 10 13:10:54 kernel: usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0
Feb 10 13:10:54 kernel: option 1-1.3:1.2: GSM modem (1-port) converter detected
Feb 10 13:10:54 kernel: usbcore: registered new interface driver cdc_wdm
Feb 10 13:10:54 systemd[1]: Starting user-0.slice.
Feb 10 13:10:54 systemd[1]: Created slice user-0.slice.
Feb 10 13:10:54 kernel: usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB1
Feb 10 13:10:54 kernel: option 1-1.3:1.3: GSM modem (1-port) converter detected
Feb 10 13:10:54 kernel: usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB2
Feb 10 13:10:54 kernel: huawei_cdc_ncm 1-1.3:1.1: MAC-Address: 58:2c:80:13:92:63
Feb 10 13:10:54 kernel: huawei_cdc_ncm 1-1.3:1.1: setting rx_max = 16384
Feb 10 13:10:54 kernel: huawei_cdc_ncm 1-1.3:1.1: setting tx_max = 16384
Feb 10 13:10:54 kernel: huawei_cdc_ncm 1-1.3:1.1: cdc-wdm0: USB WDM device
Feb 10 13:10:54 kernel: huawei_cdc_ncm 1-1.3:1.1 wwan0: register 'huawei_cdc_ncm' at usb-at91-1.3, Huawei CDC NCM device, 58:2c:80:13:92:63
Feb 10 13:10:54 kernel: usbcore: registered new interface driver huawei_cdc_ncm
Feb 10 13:10:54 logger: usb_modeswitch: switched to 12d1:1506 on 001/004
Feb 10 13:10:55 NetworkManager[957]: <info> devices added (path: /sys/devices/soc0/ahb/500000.ohci/usb1/1-1/1-1.3/1-1.3:1.1/net/wwan0, iface: wwan0)
Feb 10 13:10:55 NetworkManager[957]: <info> device added (path: /sys/devices/soc0/ahb/500000.ohci/usb1/1-1/1-1.3/1-1.3:1.1/net/wwan0, iface: wwan0): no ifupdown configuration found.
Feb 10 13:10:55 systemd[1]: Starting Session c1 of user root.
Feb 10 13:10:55 systemd[1]: Started Session c1 of user root.
Feb 10 13:10:55 systemd[1]: Starting User Manager for UID 0...
Feb 10 13:10:55 ModemManager[954]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 13:10:56 systemd[1]: Started USB_ModeSwitch.
Feb 10 13:10:56 ModemManager[954]: <warn> (ttyUSB1): port attributes not fully set
Feb 10 13:10:56 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
Feb 10 13:10:56 dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Feb 10 13:10:56 dhclient: DHCPOFFER from 82.195.210.40
Feb 10 13:10:56 dhclient: DHCPACK from 82.195.210.40
Feb 10 13:10:56 systemd[1161]: Starting Paths.
Feb 10 13:10:56 systemd[1161]: Reached target Paths.
Feb 10 13:10:56 systemd[1161]: Starting Timers.
Feb 10 13:10:56 systemd[1161]: Reached target Timers.
Feb 10 13:10:56 systemd[1161]: Starting Sockets.
Feb 10 13:10:56 systemd[1161]: Reached target Sockets.
Feb 10 13:10:56 systemd[1161]: Starting Basic System.
Feb 10 13:10:56 systemd[1161]: Reached target Basic System.
Feb 10 13:10:57 systemd[1161]: Starting Default.
Feb 10 13:10:57 systemd[1161]: Reached target Default.
Feb 10 13:10:57 systemd[1161]: Startup finished in 665ms.
Feb 10 13:10:57 systemd[1]: Started User Manager for UID 0.
Feb 10 13:10:57 ModemManager[954]: <warn> (ttyUSB0): port attributes not fully set
Feb 10 13:10:57 dhclient: bound to 82.195.211.143 -- renewal in 43954 seconds.
Feb 10 13:10:59 ModemManager[954]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 13:10:59 ModemManager[954]: <warn> (ttyUSB1): port attributes not fully set
Feb 10 13:11:15 ModemManager[954]: <info> Creating modem with plugin 'Huawei' and '5' ports
Feb 10 13:11:15 ModemManager[954]: <warn> Could not grab port (tty/ttyUSB1): 'Cannot add port 'tty/ttyUSB1', unhandled serial type'
Feb 10 13:11:15 ModemManager[954]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 13:11:15 ModemManager[954]: <info> Modem for device at '/sys/devices/soc0/ahb/500000.ohci/usb1/1-1/1-1.3' successfully created
Feb 10 13:11:16 ModemManager[954]: Error while checking ^SYSCFGEX format: Unknown error
Feb 10 13:11:22 ModemManager[954]: Invalid mobile equipment error code: 50
Feb 10 13:11:22 ModemManager[954]: <info> Modem: state changed (unknown -> disabled)
Feb 10 13:11:22 NetworkManager[957]: <warn> (ttyUSB2): failed to look up interface index
Feb 10 13:11:22 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): new Broadband device (driver: 'huawei_cdc_ncm, option1' ifindex: 0)
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): exported as /org/freedesktop/NetworkManager/Devices/3
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Feb 10 13:11:22 ModemManager[954]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): preparing device
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): modem state 'enabling'
Feb 10 13:11:22 NetworkManager[957]: <info> (ttyUSB2): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Feb 10 13:11:23 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> registering)
Feb 10 13:11:24 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (registering -> home)
Feb 10 13:11:24 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '0', MNC: '0', Location area code: '28', Cell ID: '689378')
Feb 10 13:11:24 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '244', MNC: '12', Location area code: '28', Cell ID: '689378')
Feb 10 13:11:26 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> registered)
Feb 10 13:11:26 NetworkManager[957]: <info> (ttyUSB2): modem state changed, 'enabling' --> 'registered' (reason: user-requested)
Feb 10 13:11:53 ModemManager[954]: <info> Simple connect started...
Feb 10 13:11:53 ModemManager[954]: <info> Simple connect state (4/8): Wait to get fully enabled
Feb 10 13:11:53 ModemManager[954]: <info> Simple connect state (5/8): Register
Feb 10 13:11:53 ModemManager[954]: <info> Simple connect state (6/8): Bearer
Feb 10 13:11:53 ModemManager[954]: <info> Simple connect state (7/8): Connect
Feb 10 13:11:53 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (registered -> connecting)
Feb 10 13:11:53 NetworkManager[957]: <info> (ttyUSB2): modem state changed, 'registered' --> 'connecting' (reason: user-requested)
Feb 10 13:11:56 ModemManager[954]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (connecting -> connected)
Feb 10 13:11:56 ModemManager[954]: <info> Simple connect state (8/8): All done
Feb 10 13:11:56 NetworkManager[957]: <info> (ttyUSB2): modem state changed, 'connecting' --> 'connected' (reason: user-requested)
Feb 10 13:14:20 dhclient: Internet Systems Consortium DHCP Client 4.3.1
Feb 10 13:14:20 dhclient: Copyright 2004-2014 Internet Systems Consortium.
Feb 10 13:14:20 dhclient: All rights reserved.
Feb 10 13:14:20 dhclient: For info, please visit https://www.isc.org/software/dhcp/
Feb 10 13:14:20 dhclient:
Feb 10 13:14:20 dhclient: Listening on LPF/wwan0/58:2c:80:13:92:63
Feb 10 13:14:20 dhclient: Sending on LPF/wwan0/58:2c:80:13:92:63
Feb 10 13:14:20 dhclient: Sending on Socket/fallback
Feb 10 13:14:20 dhclient: DHCPREQUEST on wwan0 to 255.255.255.255 port 67
Feb 10 13:14:20 dhclient: DHCPNAK from 37.33.16.241
Feb 10 13:14:20 dhclient: DHCPDISCOVER on wwan0 to 255.255.255.255 port 67 interval 4
Feb 10 13:14:20 dhclient: DHCPREQUEST on wwan0 to 255.255.255.255 port 67
Feb 10 13:14:20 dhclient: DHCPOFFER from 37.33.16.241
Feb 10 13:14:20 dhclient: DHCPACK from 37.33.16.241
Feb 10 13:14:20 dhclient: bound to 37.33.16.243 -- renewal in 232568 seconds.
Feb 10 13:14:22 ntpd[985]: Listen normally on 6 wwan0 37.33.16.243 UDP 123
Feb 10 13:14:22 ntpd[985]: Listen normally on 7 wwan0 fe80::5a2c:80ff:fe13:9263 UDP 123
Feb 10 13:14:22 ntpd[985]: peers refreshed
Pi系统的Syslog：
Feb 10 12:45:20 raspberrypi kernel: [ 70.179443] usb 1-1.5.4: new high-speed USB device number 9 using dwc_otg
Feb 10 12:45:20 raspberrypi kernel: [ 70.280330] usb 1-1.5.4: New USB device found, idVendor=12d1, idProduct=1506
Feb 10 12:45:20 raspberrypi kernel: [ 70.280349] usb 1-1.5.4: New USB device strings: Mfr=3, Product=2, SerialNumber=0
Feb 10 12:45:20 raspberrypi kernel: [ 70.280362] usb 1-1.5.4: Product: HUAWEI Mobile
Feb 10 12:45:20 raspberrypi kernel: [ 70.280375] usb 1-1.5.4: Manufacturer: HUAWEI
Feb 10 12:45:20 raspberrypi kernel: [ 70.284114] usb-storage 1-1.5.4:1.4: USB Mass Storage device detected
Feb 10 12:45:20 raspberrypi kernel: [ 70.285173] scsi host2: usb-storage 1-1.5.4:1.4
Feb 10 12:45:20 raspberrypi kernel: [ 70.286131] usb-storage 1-1.5.4:1.5: USB Mass Storage device detected
Feb 10 12:45:20 raspberrypi kernel: [ 70.286494] scsi host3: usb-storage 1-1.5.4:1.5
Feb 10 12:45:20 raspberrypi systemd-udevd[871]: failed to execute '/lib/udev/mtp-probe' 'mtp-probe /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5.4 1 9': No such file or directory
Feb 10 12:45:20 raspberrypi kernel: [ 70.320269] usbcore: registered new interface driver cdc_ncm
Feb 10 12:45:20 raspberrypi kernel: [ 70.324621] usbcore: registered new interface driver cdc_wdm
Feb 10 12:45:20 raspberrypi kernel: [ 70.331163] usbcore: registered new interface driver usbserial
Feb 10 12:45:20 raspberrypi kernel: [ 70.331276] usbcore: registered new interface driver usbserial_generic
Feb 10 12:45:20 raspberrypi kernel: [ 70.331375] usbserial: USB Serial support registered for generic
Feb 10 12:45:20 raspberrypi kernel: [ 70.332798] huawei_cdc_ncm 1-1.5.4:1.1: MAC-Address: 58:2c:80:13:92:63
Feb 10 12:45:20 raspberrypi kernel: [ 70.332858] huawei_cdc_ncm 1-1.5.4:1.1: setting rx_max = 16384
Feb 10 12:45:20 raspberrypi kernel: [ 70.333498] huawei_cdc_ncm 1-1.5.4:1.1: setting tx_max = 16384
Feb 10 12:45:20 raspberrypi kernel: [ 70.334914] huawei_cdc_ncm 1-1.5.4:1.1: cdc-wdm0: USB WDM device
Feb 10 12:45:20 raspberrypi kernel: [ 70.336971] huawei_cdc_ncm 1-1.5.4:1.1 wwan0: register 'huawei_cdc_ncm' at usb-3f980000.usb-1.5.4, Huawei CDC NCM device, 58:2c:80:13:92:63
Feb 10 12:45:20 raspberrypi kernel: [ 70.337760] usbcore: registered new interface driver huawei_cdc_ncm
Feb 10 12:45:20 raspberrypi kernel: [ 70.348717] usbcore: registered new interface driver option
Feb 10 12:45:20 raspberrypi kernel: [ 70.348838] usbserial: USB Serial support registered for GSM modem (1-port)
Feb 10 12:45:20 raspberrypi kernel: [ 70.350449] option 1-1.5.4:1.0: GSM modem (1-port) converter detected
Feb 10 12:45:20 raspberrypi kernel: [ 70.351000] usb 1-1.5.4: GSM modem (1-port) converter now attached to ttyUSB0
Feb 10 12:45:20 raspberrypi kernel: [ 70.351174] option 1-1.5.4:1.2: GSM modem (1-port) converter detected
Feb 10 12:45:20 raspberrypi kernel: [ 70.351477] usb 1-1.5.4: GSM modem (1-port) converter now attached to ttyUSB1
Feb 10 12:45:20 raspberrypi kernel: [ 70.351550] option 1-1.5.4:1.3: GSM modem (1-port) converter detected
Feb 10 12:45:20 raspberrypi kernel: [ 70.351695] usb 1-1.5.4: GSM modem (1-port) converter now attached to ttyUSB2
Feb 10 12:45:20 raspberrypi logger: usb_modeswitch: switched to 12d1:1506 on 001/009
Feb 10 12:45:20 raspberrypi NetworkManager[385]: <info> devices added (path: /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5.4/1-1.5.4:1.1/net/wwan0, iface: wwan0)
Feb 10 12:45:20 raspberrypi NetworkManager[385]: <info> device added (path: /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5.4/1-1.5.4:1.1/net/wwan0, iface: wwan0): no ifupdown configuration found.
Feb 10 12:45:20 raspberrypi dhcpcd[396]: wwan0: adding address fe80::3d2:b0ae:25df:f0c5
Feb 10 12:45:20 raspberrypi ModemManager[386]: <warn> (ttyUSB1): port attributes not fully set
Feb 10 12:45:20 raspberrypi ModemManager[386]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 12:45:20 raspberrypi dhcpcd[396]: wwan0: waiting for carrier
Feb 10 12:45:20 raspberrypi dhcpcd[396]: wwan0: carrier acquired
Feb 10 12:45:20 raspberrypi dhcpcd[396]: wwan0: IAID 80:13:92:63
Feb 10 12:45:20 raspberrypi dhcpcd[396]: wwan0: rebinding lease of 37.136.135.101
Feb 10 12:45:21 raspberrypi kernel: [ 71.280158] scsi 2:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
Feb 10 12:45:21 raspberrypi kernel: [ 71.284820] scsi 3:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
Feb 10 12:45:21 raspberrypi kernel: [ 71.287199] sd 3:0:0:0: [sda] Attached SCSI removable disk
Feb 10 12:45:21 raspberrypi kernel: [ 71.294817] scsi 2:0:0:0: Attached scsi generic sg0 type 5
Feb 10 12:45:21 raspberrypi kernel: [ 71.296390] sd 3:0:0:0: Attached scsi generic sg1 type 0
Feb 10 12:45:21 raspberrypi kernel: [ 71.296999] sr 2:0:0:0: [sr0] scsi-1 drive
Feb 10 12:45:21 raspberrypi kernel: [ 71.297014] cdrom: Uniform CD-ROM driver Revision: 3.20
Feb 10 12:45:21 raspberrypi kernel: [ 71.301150] sr 2:0:0:0: Attached scsi CD-ROM sr0
Feb 10 12:45:21 raspberrypi systemd[1]: Started USB_ModeSwitch.
Feb 10 12:45:21 raspberrypi ModemManager[386]: <warn> (ttyUSB0): port attributes not fully set
Feb 10 12:45:21 raspberrypi dhcpcd[396]: wwan0: soliciting an IPv6 router
Feb 10 12:45:21 raspberrypi kernel: [ 71.598335] ISO 9660 Extensions: Microsoft Joliet Level 1
Feb 10 12:45:21 raspberrypi kernel: [ 71.604495] ISOFS: changing to secondary root
Feb 10 12:45:21 raspberrypi org.gtk.Private.UDisks2VolumeMonitor[683]: index_parse.c:191: indx_parse(): error opening /media/pi/Cyfrowy Polsat/BDMV/index.bdmv
Feb 10 12:45:21 raspberrypi org.gtk.Private.UDisks2VolumeMonitor[683]: index_parse.c:191: indx_parse(): error opening /media/pi/Cyfrowy Polsat/BDMV/BACKUP/index.bdmv
Feb 10 12:45:21 raspberrypi avahi-daemon[391]: Joining mDNS multicast group on interface wwan0.IPv6 with address fe80::3d2:b0ae:25df:f0c5.
Feb 10 12:45:21 raspberrypi avahi-daemon[391]: New relevant interface wwan0.IPv6 for mDNS.
Feb 10 12:45:21 raspberrypi avahi-daemon[391]: Registering new address record for fe80::3d2:b0ae:25df:f0c5 on wwan0.*.
Feb 10 12:45:21 raspberrypi udisksd[769]: Mounted /dev/sr0 at /media/pi/Cyfrowy Polsat on behalf of uid 1000
Feb 10 12:45:23 raspberrypi ntpd[535]: Listen normally on 4 wwan0 fe80::3d2:b0ae:25df:f0c5 UDP 123
Feb 10 12:45:23 raspberrypi ntpd[535]: peers refreshed
Feb 10 12:45:23 raspberrypi ntpd_intres[537]: host name not found: 0.debian.pool.ntp.org
Feb 10 12:45:23 raspberrypi ntpd_intres[537]: host name not found: 1.debian.pool.ntp.org
Feb 10 12:45:23 raspberrypi ntpd_intres[537]: host name not found: 2.debian.pool.ntp.org
Feb 10 12:45:23 raspberrypi ntpd_intres[537]: host name not found: 3.debian.pool.ntp.org
Feb 10 12:45:23 raspberrypi ModemManager[386]: <warn> (ttyUSB1): port attributes not fully set
Feb 10 12:45:23 raspberrypi ModemManager[386]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 12:45:25 raspberrypi dhcpcd[396]: wwan0: probing for an IPv4LL address
Feb 10 12:45:25 raspberrypi dhcpcd[396]: wwan0: DHCP lease expired
Feb 10 12:45:25 raspberrypi dhcpcd[396]: wwan0: soliciting a DHCP lease
Feb 10 12:45:25 raspberrypi ntpd_intres[537]: host name not found: 0.debian.pool.ntp.org
Feb 10 12:45:25 raspberrypi ntpd_intres[537]: host name not found: 1.debian.pool.ntp.org
Feb 10 12:45:25 raspberrypi ntpd_intres[537]: host name not found: 2.debian.pool.ntp.org
Feb 10 12:45:25 raspberrypi ntpd_intres[537]: host name not found: 3.debian.pool.ntp.org
Feb 10 12:45:29 raspberrypi dhcpcd[396]: wwan0: using IPv4LL address 169.254.169.80
Feb 10 12:45:29 raspberrypi avahi-daemon[391]: Joining mDNS multicast group on interface wwan0.IPv4 with address 169.254.169.80.
Feb 10 12:45:29 raspberrypi dhcpcd[396]: wwan0: adding route to 169.254.0.0/16
Feb 10 12:45:29 raspberrypi avahi-daemon[391]: New relevant interface wwan0.IPv4 for mDNS.
Feb 10 12:45:29 raspberrypi avahi-daemon[391]: Registering new address record for 169.254.169.80 on wwan0.IPv4.
Feb 10 12:45:31 raspberrypi ntpd[535]: Listen normally on 5 wwan0 169.254.169.80 UDP 123
Feb 10 12:45:31 raspberrypi ntpd[535]: peers refreshed
Feb 10 12:45:33 raspberrypi ntpd_intres[537]: host name not found: 0.debian.pool.ntp.org
Feb 10 12:45:33 raspberrypi ntpd_intres[537]: host name not found: 1.debian.pool.ntp.org
Feb 10 12:45:33 raspberrypi ntpd_intres[537]: host name not found: 2.debian.pool.ntp.org
Feb 10 12:45:33 raspberrypi ntpd_intres[537]: host name not found: 3.debian.pool.ntp.org
Feb 10 12:45:33 raspberrypi dhcpcd[396]: wwan0: no IPv6 Routers available
Feb 10 12:45:39 raspberrypi ModemManager[386]: <info> Creating modem with plugin 'Huawei' and '5' ports
Feb 10 12:45:39 raspberrypi ModemManager[386]: <warn> Could not grab port (tty/ttyUSB1): 'Cannot add port 'tty/ttyUSB1', unhandled serial type'
Feb 10 12:45:39 raspberrypi ModemManager[386]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 12:45:39 raspberrypi ModemManager[386]: <info> Modem for device at '/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5.4' successfully created
Feb 10 12:45:40 raspberrypi ModemManager[386]: Error while checking ^SYSCFGEX format: Unknown error
Feb 10 12:45:43 raspberrypi ModemManager[386]: Invalid mobile equipment error code: 50
Feb 10 12:45:43 raspberrypi rsyslogd-2007: action 'action 17' suspended, next retry is Fri Feb 10 12:46:13 2017 [try http://www.rsyslog.com/e/2007 ]
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem: state changed (unknown -> disabled)
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <warn> (ttyUSB2): failed to look up interface index
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): new Broadband device (driver: 'huawei_cdc_ncm, option1' ifindex: 0)
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): exported as /org/freedesktop/NetworkManager/Devices/3
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
Feb 10 12:45:43 raspberrypi ModemManager[386]: <warn> (ttyUSB2): port attributes not fully set
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): preparing device
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): modem state 'enabling'
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> registering)
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (registering -> home)
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '0', MNC: '0', Location area code: '28', Cell ID: '689378')
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '244', MNC: '12', Location area code: '28', Cell ID: '689378')
Feb 10 12:45:43 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> registered)
Feb 10 12:45:43 raspberrypi NetworkManager[385]: <info> (ttyUSB2): modem state changed, 'enabling' --> 'registered' (reason: user-requested)
Feb 10 12:46:00 raspberrypi wpa_supplicant[548]: wlan0: Failed to initiate sched scan
Feb 10 12:46:19 raspberrypi rsyslogd-2007: action 'action 17' suspended, next retry is Fri Feb 10 12:46:49 2017 [try http://www.rsyslog.com/e/2007 ]
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Simple connect started...
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Simple connect state (4/8): Wait to get fully enabled
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Simple connect state (5/8): Register
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Simple connect state (6/8): Bearer
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Simple connect state (7/8): Connect
Feb 10 12:46:22 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (registered -> connecting)
Feb 10 12:46:22 raspberrypi NetworkManager[385]: <info> (ttyUSB2): modem state changed, 'registered' --> 'connecting' (reason: user-requested)
Feb 10 12:46:27 raspberrypi ModemManager[386]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (connecting -> connected)
Feb 10 12:46:27 raspberrypi ModemManager[386]: <info> Simple connect state (8/8): All done
Feb 10 12:46:27 raspberrypi NetworkManager[385]: <info> (ttyUSB2): modem state changed, 'connecting' --> 'connected' (reason: user-requested)
Feb 10 12:46:53 raspberrypi wpa_supplicant[548]: wlan0: Failed to initiate sched scan
Feb 10 12:46:53 raspberrypi rsyslogd-2007: action 'action 17' suspended, next retry is Fri Feb 10 12:47:23 2017 [try http://www.rsyslog.com/e/2007 ]
Feb 10 12:47:30 raspberrypi dhcpcd[396]: wwan0: offered 178.55.198.223 from 178.55.198.193
Feb 10 12:47:30 raspberrypi rsyslogd-2007: action 'action 17' suspended, next retry is Fri Feb 10 12:48:00 2017 [try http://www.rsyslog.com/e/2007 ]
Feb 10 12:47:35 raspberrypi dhcpcd[396]: wwan0: leased 178.55.198.223 for 518400 seconds
Feb 10 12:47:35 raspberrypi dhcpcd[396]: wwan0: adding route to 178.55.198.192/26
Feb 10 12:47:35 raspberrypi dhcpcd[396]: wwan0: adding default route via 178.55.198.193
Feb 10 12:47:35 raspberrypi dhcpcd[396]: wwan0: deleting route to 169.254.0.0/16
Feb 10 12:47:35 raspberrypi avahi-daemon[391]: Registering new address record for 178.55.198.223 on wwan0.IPv4.
Feb 10 12:47:35 raspberrypi avahi-daemon[391]: Withdrawing address record for 169.254.169.80 on wwan0.
Feb 10 12:47:35 raspberrypi avahi-daemon[391]: Leaving mDNS multicast group on interface wwan0.IPv4 with address 169.254.169.80.
Feb 10 12:47:35 raspberrypi avahi-daemon[391]: Joining mDNS multicast group on interface wwan0.IPv4 with address 178.55.198.223.
答案1
我自己解决了这个问题，这是其他人认为有用的情况的解决方案。
问题的核心是我已经配置为通过ineth0获取它的 IP ，而留给 NetworkManager 来处理。据我所知，否则这将是一个有效的解决方案，但我注意到由于.禁用后，无法获取其IP。更准确地说，据我所知，问题不是在 中进行配置，而是更具体地说，将其配置为在那里使用。dhcp/etc/network/interfaceswwan0dhcpcdeth0dhcpcdwwan0eth0/etc/network/interfacesdhcp
解决方案是删除eth0from的配置/etc/network/interfaces并让 NetworkManager 也处理该问题。安装dhcpcd是必要的，但仅此还不够。