Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 08-25-2006, 01:42 PM   #1
LQ Newbie
Registered: Mar 2006
Location: Nairobi, Kenya
Distribution: Zenwalk4.0
Posts: 27

Rep: Reputation: 15
How do I create a eth0 interface?


I know it sound weird, but i mean it. By doing "ifconfig" i only had a "sit0" IPv6overIPv4-Tunnel which didnt allow me to connect to the LAN at school nor at home (both over DHCP). I know that i used to have a normal eth0 in a previous Debian install. Now, how do i "make" that eth0-Interface? i searched, but didnt find.

Thank you!
Old 08-25-2006, 02:03 PM   #2
LQ Guru
Registered: Dec 2005
Location: Somewhere on the String
Distribution: Debian Wheezy (x86)
Posts: 6,094

Rep: Reputation: 281Reputation: 281Reputation: 281
what is the output of dmesg? It sounds like your install failed to detect your network card. You can try as root running /etc/init.d/networking restart or ifup eth0...
Old 08-25-2006, 02:09 PM   #3
LQ Newbie
Registered: Mar 2006
Location: Nairobi, Kenya
Distribution: Zenwalk4.0
Posts: 27

Original Poster
Rep: Reputation: 15

ifup eth0 outputted the following: "Ignoring unknown interface eth0=eth0"

and /etc/init.d/networking restart: "Reconfiguring network interfaces...ifup: interface lo already configured

dont really know how to continue? cant i make the eth0 myself?
Old 08-25-2006, 02:10 PM   #4
LQ Guru
Registered: Dec 2005
Location: Somewhere on the String
Distribution: Debian Wheezy (x86)
Posts: 6,094

Rep: Reputation: 281Reputation: 281Reputation: 281
As I said, it sounds like the kernel didn't find your ethernet card at boot time. What is the output of dmesg? What is the output of lspci (that's lowercase LSPCI)?
Old 08-26-2006, 04:15 AM   #5
LQ Newbie
Registered: Mar 2006
Location: Nairobi, Kenya
Distribution: Zenwalk4.0
Posts: 27

Original Poster
Rep: Reputation: 15
Here is the output of dmesg:

Linux version 2.6.8-2-386 ( (gcc version 3.3.5 (Debian 1:3.3.5-12)) #1 Thu May 19 17:40:50 JST 2005
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
 BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e9800 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000000bff0000 (usable)
 BIOS-e820: 000000000bff0000 - 000000000bfffc00 (ACPI data)
 BIOS-e820: 000000000bfffc00 - 000000000c000000 (ACPI NVS)
 BIOS-e820: 00000000fffe9800 - 0000000100000000 (reserved)
191MB LOWMEM available.
On node 0 totalpages: 49136
  DMA zone: 4096 pages, LIFO batch:1
  Normal zone: 45040 pages, LIFO batch:10
  HighMem zone: 0 pages, LIFO batch:1
DMI 2.1 present.
ACPI disabled because your bios is from 99 and too old
You can enable it with acpi=force
Built 1 zonelists
Kernel command line: root=/dev/hda1 ro bootkbd=de 
Local APIC disabled by BIOS -- reenabling.
Could not enable APIC!
Initializing CPU#0
PID hash table entries: 1024 (order 10: 8192 bytes)
Detected 497.812 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 187420k/196544k available (1336k kernel code, 8472k reserved, 732k data, 204k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 983.04 BogoMIPS
Security Scaffold v1.0.0 initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0387f9ff 00000000 00000000 00000000
CPU: After vendor identify, caps:  0387f9ff 00000000 00000000 00000000
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU serial number disabled.
CPU: After all inits, caps:        0383f9ff 00000000 00000000 00000040
CPU: Intel Pentium III (Coppermine) stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
checking if image is isn't (ungzip failed); looks like an initrd
Freeing initrd memory: 4216k freed
NET: Registered protocol family 16
EISA bus registered
PCI: PCI BIOS revision 2.10 entry at 0xfd9b4, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040326
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00f7720
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xa56b, dseg 0x400
pnp: 00:00: ioport range 0x4d0-0x4d1 has been reserved
pnp: 00:00: ioport range 0x8000-0x803f has been reserved
pnp: 00:00: ioport range 0x2180-0x218f has been reserved
pnp: 00:01: ioport range 0x3e0-0x3e1 has been reserved
PnPBIOS: 15 nodes reported by PnP BIOS; 15 recorded by driver
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Using IRQ router PIIX/ICH [8086/7110] at 0000:00:07.0
PCI: IRQ 0 for device 0000:00:0a.0 doesn't match PIRQ mask - try pci=usepirqmask
PCI: Found IRQ 11 for device 0000:00:0a.0
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (
devfs: boot_options: 0x0
Initializing Cryptographic API
Limiting direct PCI/PCI transfers.
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 54 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
input: AT Translated Set 2 keyboard on isa0060/serio0
EISA: Probing bus 0 at eisa0
Cannot allocate resource for EISA slot 8
EISA: Detected 0 cards.
NET: Registered protocol family 2
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET: Registered protocol family 8
NET: Registered protocol family 20
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4216 blocks [1 disk] into ram disk... |?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?|?/?-?\?done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 204k freed
vesafb: probe of vesafb0 failed with error -6
NET: Registered protocol family 1
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller at PCI slot 0000:00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xfc90-0xfc97, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xfc98-0xfc9f, BIOS settings: hdc:DMA, hdd:pio
hda: IBM-DJSA-220, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 128KiB
hda: 39070080 sectors (20003 MB) w/1874KiB Cache, CHS=38760/16/63, UDMA(33)
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p3
ide1 at 0x170-0x177,0x376 on irq 15
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Adding 562264k swap on /dev/hda2.  Priority:-1 extents:1
EXT3 FS on hda1, internal journal
Generic RTC Driver v1.07
hdc: ATAPI 24X DVD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
atkbd.c: Spurious ACK on isa0060/serio0. Some program, like XFree86, might be trying access hardware directly.
Synaptics Touchpad, model: 1
 Firmware: 4.6
 Sensor: 15
 new absolute packet format
 Touchpad has extended capability bits
 -> four buttons
 -> multifinger detection
 -> palm detection
input: SynPS/2 Synaptics TouchPad on isa0060/serio1
Capability LSM initialized
mice: PS/2 mouse device common for all mice
ts: Compaq touchscreen protocol output
kjournald starting.  Commit interval 5 seconds
EXT3 FS on hda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Linux agpgart interface v0.100 (c) Dave Jones
Linux Kernel Card Services
  options:  [pci] [cardbus] [pm]
PCI: Found IRQ 11 for device 0000:00:0a.0
Yenta: CardBus bridge found at 0000:00:0a.0 [0e11:b103]
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:0a.0, mfunc 0x01271202, devctl 0x64
Yenta: ISA IRQ mask 0x0690, PCI irq 11
Socket status: 30000006
agpgart: Detected an Intel 440BX Chipset.
agpgart: Maximum main memory to use for agp memory: 149M
agpgart: AGP aperture is 64M @ 0xf8000000
cpci_hotplug: CompactPCI Hot Plug Core version: 0.2
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: acpi_pciehprm:get_device PCI ROOT HID fail=0x1001
shpchp: acpi_shpchprm:get_device PCI ROOT HID fail=0x1001
usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v2.2
PCI: Found IRQ 11 for device 0000:00:07.2
PCI: Sharing IRQ 11 with 0000:00:12.0
uhci_hcd 0000:00:07.2: Intel Corp. 82371AB/EB/MB PIIX4 USB
uhci_hcd 0000:00:07.2: irq 11, io base 0000fca0
uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
solo1: version v0.20 time 17:47:44 May 19 2005
PCI: Found IRQ 5 for device 0000:00:11.0
PCI: Sharing IRQ 5 with 0000:01:00.0
solo1: joystick port at 0xf4dd
solo1: ddma base address: 0xf4f0
input: PC Speaker
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE,EPP]
inserting floppy driver for 2.6.8-2-386
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
cs: IO port probe 0x0100-0x04ff: clean.
cs: IO port probe 0x0800-0x08ff: clean.
cs: IO port probe 0x0c00-0x0cff: clean.
cs: IO port probe 0x0a00-0x0aff: clean.
NET: Registered protocol family 10
Disabled Privacy Extensions on device c02cc960(lo)
IPv6 over IPv4 tunneling driver

and lspci also lists my EthernetCard as an EthernetController: Digital Equipment Corporatoim DECchip 21142/43
Old 08-28-2006, 01:25 PM   #6
LQ Guru
Registered: Dec 2005
Location: Somewhere on the String
Distribution: Debian Wheezy (x86)
Posts: 6,094

Rep: Reputation: 281Reputation: 281Reputation: 281
Well, it looks like the system never loaded the ethernet controller. From googling around, it appears that the DECchip should be controlled by the "tulip" driver. Try insmod tulip.o as root. If that doesn't work, you might need to go find the right module on your hard drive. It should be in something like /lib/modules/2.6.8-3-686/kernel/drivers/net. It might be called tulip.ko instead...

After it's loaded, you should be able to do /etc/init.d/networking restart.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bringing up interface eth0 Delaying eth0 initialization. [ FA bansal_ashok Linux - Networking 4 05-27-2005 10:09 AM
interface eth0 problem Birgi Linux - Networking 4 02-22-2005 12:56 PM
Bringing up interface eth0: determining ip information for eth0... failed ralphethomas Linux - Networking 0 01-24-2004 05:33 PM
eth0 interface... InSane103 Linux - Networking 1 07-12-2003 11:26 AM
couldn't bring up interface eth0 mikez Linux - Networking 9 02-28-2002 12:02 PM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 11:41 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration