Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: Wifi Not working in Knoppix 7.0.5

  1. #1
    Junior Member
    Join Date
    Jun 2013
    Posts
    11

    Wifi Not working in Knoppix 7.0.5

    Hi, I have Knoppix 7.0.5 DVD on USB stick, and USB Wireless N 802.11n/g/b adapter.

    Knoppix's can see my wireless network, the box comes up to put the wifi pass in then tries to connect for a while, but the box comes back up to connect again but never connects.

    I have the CD with the drivers and there is a folder on there with drivers for Linux if that's of any use??

    Also I am new to Linux based op systems

  2. #2
    Senior Member registered user
    Join Date
    Feb 2010
    Posts
    508
    Hi!

    You did not write enough about your USB WLAN adapter. I think you should plug in your USB wireless adapter and open an LXTerminal. Then issue the command
    Code:
    lsusb
    and tell us all about the wireless adapter.

  3. #3
    Junior Member
    Join Date
    Jun 2013
    Posts
    11
    This is all I got using LXTerminal,

    oppix@Microknoppix:~$ lsusb
    Bus 001 Device 002: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter

    Here is more info from web site,

    Specifications
    Wireless Standards
    IEEE 802.11n
    IEEE 802.11g
    IEEE 802.11b
    Host Interface
    High speed USB2.0/1.1 interface
    Data Rate
    802.11n: up to 150Mbps (downlink) and 150Mbps (uplink)
    802.11g: 54 / 48 / 36 / 24 / 18/ 12 / 9 / 6 Mbps auto fallback
    802.11b: 11 / 5.5 / 2 / 1 Mbps auto fallback

    Frequency Band
    2.4GHz ISM (Industrial Scientific Medical) Band
    Chipset
    Realtek 8188CUS
    RF Frequency
    2412 ~ 2462 MHz (North America)
    2412 ~ 2472 MHz (Europe)
    2412 ~ 2484 MHz (Japan)
    Radio Channel
    1 ~ 14 channels (Universal Domain Selection)
    Range Coverage
    Up to 3 times farther range than 802.11g
    Antenna type
    Integrated Antenna
    Roaming
    Full mobility and seamless roaming from cell to cell
    RF Output Power
    13 - 17 dBm (Typical)
    Modulation
    11n: BPSK, QPSK, 16QAM, 64QAM with OFDM
    11g: BPSK, QPSK, 16QAM, 64QAM, OFDM
    11b: DQPSK, DBPSK, DSSS, CCK
    Data Security
    64/128-bit WEP Encryption
    WPA, WPA-PSK, WPA2, WPA2-PSK. TKIP/AES
    Network
    Auto-switch to use 802.11n or 802.11g or 802.11b mode
    Supports Ad-Hoc, Infrastructure WLAN network
    Wireless roaming
    Data rate auto fall-back under noisy environment or longer range distance
    Site Survey with Profile function
    Configuration & Management
    Plug-and-Play setup and installation
    Management Utility supports 2000 / XP/ Vista / 7
    Media Access Control
    CSMA/CA with ACK

    Operating System
    Windows XP 32/64-bit, Vista 32/64-bit,7
    Linux and MAC OS X

  4. #4
    Senior Member registered user
    Join Date
    Feb 2010
    Posts
    508
    It is a well known bug. Look at https://bugs.launchpad.net/ubuntu/+s...x/+bug/1030858

    I use an wireless LAN adapter by Edimax with the same chipset. In post #73 of the thread mentioned above you will find a link for the latest Linux driver. If you are curious you can install this driver and boot up your system using the additional cheat code 'modprobe.blacklist=rtl8192cu'.

  5. #5
    Junior Member
    Join Date
    Jun 2013
    Posts
    11
    Ok, I have got the updated drivers for this.

    So how do I go about installing this driver??

    And also the "additional cheat code 'modprobe.blacklist=rtl8192cu", how do I boot up the system using that?? Where do I type that??

    Like I said, I am new to Linux based op systems.

  6. #6
    Senior Member registered user
    Join Date
    Feb 2010
    Posts
    508
    In the following I suppose you downloaded the driver archive file to you desktop.

    You have to open an LXTerminal, change to the directory with the driver archive file and unzip the file. Issue
    Code:
    cd /home/knoppix/Desktop
    unzip RTL8192xC_USB_linux_v3.4.4_4749.20121105.zip
    The files will be extracted to a new subdirectory. Issue
    Code:
    cd RTL8188C_8192C_USB_linux_v3.4.4_4749.20121105
    sudo bash install.sh
    This will compile and install the new driver files.

    Now you can edit GRUB's configuration file. Issue
    Code:
    sudo leafpad /boot/grub/menu.lst
    This will load the configuration file into the leafpad text editor. Search for the line starting with 'kernel /boot/vmlinuz' and append the cheat code modprobe.blacklist=rtl8192cu at the end of the line. Save the file and close leafpad text editor.

    The you should be ready to reboot your system. After reboot connect your USB wireless LAN adapter and try connecting to your wireless network.

  7. #7
    Junior Member
    Join Date
    Jun 2013
    Posts
    11
    I have installed the driver but im not sure where to put the "modprobe.blacklist=rtl8192cu"

    Here is the menu.lst file,





    # menu.lst - See: grub( 8 ), info grub, update-grub( 8 )
    # grub-install( 8 ), grub-floppy( 8 ),
    # grub-md5-crypt, /usr/share/doc/grub
    # and /usr/share/doc/grub-legacy-doc/.

    ## default num
    # Set the default entry to the entry number NUM. Numbering starts from 0, and
    # the entry number 0 is the default if the command is not used.
    #
    # You can specify 'saved' instead of a number. In this case, the default entry
    # is the entry saved with the command 'savedefault'.
    # WARNING: If you are using dmraid do not change this entry to 'saved' or your
    # array will desync and will not let you boot your system.
    default 0

    ## timeout sec
    # Set a timeout, in SEC seconds, before automatically booting the default entry
    # (normally the first entry defined).
    timeout 5

    # Pretty colours
    color cyan/blue white/blue

    ## password ['--md5'] passwd
    # If used in the first section of a menu file, disable all interactive editing
    # control (menu entry editor and command-line) and entries protected by the
    # command 'lock'
    # e.g. password topsecret
    # password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
    # password topsecret

    #
    # examples
    #
    # title Windows 95/98/NT/2000
    # root (hd0,0)
    # makeactive
    # chainloader +1
    #
    # title Linux
    # root (hd0,1)
    # kernel /vmlinuz root=/dev/hda2 ro
    #

    #
    # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

    ### BEGIN AUTOMAGIC KERNELS LIST
    ## lines between the AUTOMAGIC KERNELS LIST markers will be modified
    ## by the debian update-grub script except for the default options below

    ## DO NOT UNCOMMENT THEM, Just edit them to your needs

    ## ## Start Default Options ##
    ## default kernel options
    ## default kernel options for automagic boot options
    ## If you want special options for specific kernels use kopt_x_y_z
    ## where x.y.z is kernel version. Minor versions can be omitted.
    ## e.g. kopt=root=/dev/hda1 ro
    ## kopt_2_6_8=root=/dev/hdc1 ro
    ## kopt_2_6_8_2_686=root=/dev/hdc2 ro
    # kopt=root=/dev/sda1 ro

    ## default grub root device
    ## e.g. groot=(hd0,0)
    # groot=(/dev/sda,0)

    ## should update-grub create alternative automagic boot options
    ## e.g. alternative=true
    ## alternative=false
    # alternative=true

    ## should update-grub lock alternative automagic boot options
    ## e.g. lockalternative=true
    ## lockalternative=false
    # lockalternative=false

    ## additional options to use with the default boot option, but not with the
    ## alternatives
    ## e.g. defoptions=vga=791 resume=/dev/hda5
    # defoptions=

    ## should update-grub lock old automagic boot options
    ## e.g. lockold=false
    ## lockold=true
    # lockold=false

    ## Xen hypervisor options to use with the default Xen boot option
    # xenhopt=

    ## Xen Linux kernel options to use with the default Xen boot option
    # xenkopt=console=tty0

    ## altoption boot targets option
    ## multiple altoptions lines are allowed
    ## e.g. altoptions=(extra menu suffix) extra boot options
    ## altoptions=(single-user) single
    # altoptions=(single-user mode) single

    ## controls how many kernels should be put into the menu.lst
    ## only counts the first occurence of a kernel, not the
    ## alternative kernel options
    ## e.g. howmany=all
    ## howmany=7
    # howmany=all

    ## should update-grub create memtest86 boot option
    ## e.g. memtest86=true
    ## memtest86=false
    # memtest86=true

    ## should update-grub adjust the value of the default booted system
    ## can be true or false
    # updatedefaultentry=false

    ## should update-grub add savedefault to the default options
    ## can be true or false
    # savedefault=false

    ## ## End Default Options ##

    title Debian GNU/Linux, kernel 3.6.11-64
    root (/dev/sda,0)
    kernel /boot/vmlinuz-3.6.11-64 root=/dev/sda1 ro

    title Debian GNU/Linux, kernel 3.6.11-64 (single-user mode)
    root (/dev/sda,0)
    kernel /boot/vmlinuz-3.6.11-64 root=/dev/sda1 ro single

    title Debian GNU/Linux, kernel 3.6.11
    root (/dev/sda,0)
    kernel /boot/vmlinuz-3.6.11 root=/dev/sda1 ro

    title Debian GNU/Linux, kernel 3.6.11 (single-user mode)
    root (/dev/sda,0)
    kernel /boot/vmlinuz-3.6.11 root=/dev/sda1 ro single

    ### END DEBIAN AUTOMAGIC KERNELS LIST

  8. #8
    Senior Member registered user
    Join Date
    Feb 2010
    Posts
    508
    I see I made a little mistake. I read your first post again and found
    Hi, I have Knoppix 7.0.5 DVD on USB stick, and USB Wireless N 802.11n/g/b adapter.
    You are using syslinux as bootloader. Thus you have to edit /mnt-system/boot/syslinux/syslinux.cfg and append the cheat code at the right place. Open an LXTerminal and issue
    Code:
    sudo leafpad /mnt-system/boot/syslinux/syslinux.cfg
    Search for a section that looks like
    Code:
    LABEL knoppix
    KERNEL linux
    APPEND ramdisk_size=100000 lang=de apm=power-off initrd=minirt.gz nomce libata.force=noncq hpsa.hpsa_allow_any=1 loglevel=1 tz=localtime
    Place the cursor at the end of the line that starts with 'APPEND' and add the cheat code.
    Code:
    APPEND ramdisk_size=100000 lang=de apm=power-off initrd=minirt.gz nomce  libata.force=noncq hpsa.hpsa_allow_any=1 loglevel=1 tz=localtime modprobe.blacklist=rtl8192cu
    Save the file and close the text editor. Then reboot the system. Of course the cheat code 'lang=de' could be 'lang=en' if you are using english language.
    Last edited by klaus2008; 06-16-2013 at 09:07 AM.

  9. #9
    Junior Member
    Join Date
    Jun 2013
    Posts
    11
    When I open "sudo leafpad /mnt-system/boot/syslinux/syslinux.cfg" there is nothing in there, its just a empty file??

  10. #10
    Junior Member
    Join Date
    Jun 2013
    Posts
    11
    Something happened to my USB Knoppix where Leafpad would not open anymore and also the text files wouldn't open anymore either.

    So I reloaded the USB stick with a fresh install of Knoppix , reinstalled the new Wifi driver, and now Wifi IS working with no cheat code??

    Thanks for your help with this klaus2008.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •