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Thread: wan0 missing 12.04

  1. #1
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    wan0 missing 12.04

    I have an older Dell system on which I installed Ubunbtu 12.04 desktop. It has no internal wireless, so I purchased a Panda mini usb flash. It requires no driver install. lsusb does show it in the list. However, ifconfig only shows eth0 and the loopback, but there is no wan0. Your advice would be appreciated.

  2. #2
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    Ubuntu 17.04 Zesty Zapus

    Re: wan0 missing 12.04

    I assume you mean wlan0. Please show us what it says:
    Code:
    lsusb
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: wan0 missing 12.04

    interfaces has
    auto lo
    iface lo inet loopback

    Output of ifconfig shows only eth0 and lo

    No error message when doing 'sudo service network-manager restgart'

  4. #4
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    Re: wan0 missing 12.04

    Sorry. lsusb shows
    Bus 001 device 003:id 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
    etc

  5. #5
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    Re: wan0 missing 12.04

    The fix actually depends on your exact version. Please let us see:
    Code:
    uname -r
    modinfo rt2800usb | grep 3070
    If you get a result from the second command, then show us:
    Code:
    sudo modprobe rt2800usb
    iwconfig
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  6. #6
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    Re: wan0 missing 12.04

    uname -r
    3.8.0-29-generic
    modinfo......
    alias: usb:v148Fp3070d*dc*dsc*dp*ic*isc*ip*in*
    alias: usb:v8516p3070d*dc*dsc*dp*ic*isc*ip*in*
    alias: usb:v07B8p3070d*dc*dsc*dp*ic*isc*ip*in*

    modprobe ....
    WARNING: All config files need .conf: /etc/modprobe.d/blacklist.save, it will be ignored in a future release.
    (After the above command was issued, the led on the wireless flash began flashing)

    iwconfig
    wlan0 IEEE 802.11bgn ESSIDff/any
    Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementn

    lo no wireless extensions.

    eth0 no wireless extensions.



    Thank you. If you can explain what just occurred, I would appreciate it.

  7. #7
    Join Date
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    Ubuntu 17.04 Zesty Zapus

    Re: wan0 missing 12.04

    WARNING: All config files need .conf: /etc/modprobe.d/blacklist.save, it will be ignored in a future release.
    Let's see if we really need this and try to fix it:
    Code:
    cat  /etc/modprobe.d/blacklist.save
    cat  /etc/modprobe.d/blacklist.conf
    (After the above command was issued, the led on the wireless flash began flashing)
    And did it connect?
    If you can explain what just occurred, I would appreciate it.
    The correct driver rt2800usb didn't load automagically; let's try to find out why and correct it. If you have been trying to fix things by blacklisting, I suspect we're going to find out why!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #8
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    Re: wan0 missing 12.04

    I guess (and I am guessing - I am not on a level where I should even be speculating, but I do anyway!) that the modprobe loaded the needed module to the Kernal. The wireless flash usb is sold as plug and play for this level of Linux, so perhaps I would mention to the wireless flash vendor that this process was required to get the environment going.

  9. #9
    Join Date
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    Re: wan0 missing 12.04

    Quote Originally Posted by gshacte View Post
    I guess (and I am guessing - I am not on a level where I should even be speculating, but I do anyway!) that the modprobe loaded the needed module to the Kernal. The wireless flash usb is sold as plug and play for this level of Linux, so perhaps I would mention to the wireless flash vendor that this process was required to get the environment going.
    I think that remains to be determined. If you have a blacklist.save file, someone, maybe you, has made a change that may have helped or hurt to get the device going on boot. Let's dig deeper before we draw any conclusions.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  10. #10
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    Re: wan0 missing 12.04

    blacklist.save
    # This file lists those modules which we don't want to be loaded by
    # alias expansion, usually so some other driver will be loaded for the
    # device instead.

    # evbug is a debug tool that should be loaded explicitly
    blacklist evbug

    # these drivers are very simple, the HID drivers are usually preferred
    blacklist usbmouse
    blacklist usbkbd

    # replaced by e100
    blacklist eepro100

    # replaced by tulip
    blacklist de4x5

    # causes no end of confusion by creating unexpected network interfaces
    blacklist eth1394

    # snd_intel8x0m can interfere with snd_intel8x0, doesn't seem to support much
    # hardware on its own (Ubuntu bug #2011, #6810)
    blacklist snd_intel8x0m
    # Conflicts with dvb driver (which is better for handling this device)
    blacklist snd_aw2

    # causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
    blacklist i2c_i801

    # replaced by p54pci
    blacklist prism54

    # replaced by b43 and ssb.
    blacklist bcm43xx

    # most apps now use garmin usb driver directly (Ubuntu: #114565)
    blacklist garmin_gps

    # replaced by asus-laptop (Ubuntu: #184721)
    blacklist asus_acpi

    # low-quality, just noise when being used for sound playback, causes
    # hangs at desktop session start (Ubuntu: #246969)
    blacklist snd_pcsp
    # ugly and loud noise, getting on everyone's nerves; this should be done by a
    # nice pulseaudio bing (Ubuntu: #77010)
    blacklist pcspkr

    # EDAC driver for amd76x clashes with the agp driver preventing the aperture
    # from being initialised (Ubuntu: #297750). Blacklist so that the driver
    # continues to build and is installable for the few cases where its
    # really needed.
    blacklist amd76x_edac
    *******************************************
    blacklist.conf
    # This file lists those modules which we don't want to be loaded by
    # alias expansion, usually so some other driver will be loaded for the
    # device instead.

    # evbug is a debug tool that should be loaded explicitly
    blacklist evbug

    # these drivers are very simple, the HID drivers are usually preferred
    blacklist usbmouse
    blacklist usbkbd

    # replaced by e100
    blacklist eepro100

    # replaced by tulip
    blacklist de4x5

    # causes no end of confusion by creating unexpected network interfaces
    blacklist eth1394

    # snd_intel8x0m can interfere with snd_intel8x0, doesn't seem to support much
    # hardware on its own (Ubuntu bug #2011, #6810)
    blacklist snd_intel8x0m
    # Conflicts with dvb driver (which is better for handling this device)
    blacklist snd_aw2

    # causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
    blacklist i2c_i801

    # replaced by p54pci
    blacklist prism54

    # replaced by b43 and ssb.
    blacklist bcm43xx

    # most apps now use garmin usb driver directly (Ubuntu: #114565)
    blacklist garmin_gps

    # replaced by asus-laptop (Ubuntu: #184721)
    blacklist asus_acpi

    # low-quality, just noise when being used for sound playback, causes
    # hangs at desktop session start (Ubuntu: #246969)
    blacklist snd_pcsp

    # ugly and loud noise, getting on everyone's nerves; this should be done by a
    # nice pulseaudio bing (Ubuntu: #77010)
    blacklist pcspkr

    # EDAC driver for amd76x clashes with the agp driver preventing the aperture
    # from being initialised (Ubuntu: #297750). Blacklist so that the driver
    # continues to build and is installable for the few cases where its
    # really needed.
    blacklist amd76x_edac
    blacklist rt2800usb
    blacklist b43

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