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Old 07-10-2017, 03:22 PM   #1
Emilelf
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Registered: Jul 2017
Posts: 1

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Ethernet connection missing after Cuda installation failure with Jetpack


Ubuntu 16.04LTS, Jetson TX2, Jetpack 3.
Computer and Jetson connected to a hub, connected to internet.

After downloading Jetpack 3, I tried to flash the Jetson and install Cuda 8.
I tried to install using two different computers (wifi turned off).
I wasn't able to install Cuda, I had an error.
For both computers, after the failure during the installation, the Ethernet connection doesn't work anymore.
I checked and compared with another computer the /etc/network/interfaces and /etc/NetworkManager/NetworkManager.conf files.

I hope that someone could help me.

I tried these commands to figure out what was wrong.

Code:
$ ifconfig eth0

eth0      Link encap:Ethernet  HWaddr 28:f1:0e:48:52:d2  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:241328 errors:0 dropped:885 overruns:0 frame:0
          TX packets:4512 errors:34 dropped:0 overruns:0 carrier:34
          collisions:541 txqueuelen:1000 
          RX bytes:24081526 (24.0 MB)  TX bytes:1106325 (1.1 MB)
          Interrupt:16 Memory:dd400000-dd420000 

$ cat /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

$ cat /etc/NetworkManager/NetworkManager.conf 

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false


$ journalctl -f

Jul 07 18:35:05 toromachine dhclient[22025]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 (xid=0x6a052979)
Jul 07 18:35:09 toromachine dhclient[22025]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10 (xid=0x6a052979)
Jul 07 18:35:19 toromachine dhclient[22025]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18 (xid=0x6a052979)
Jul 07 18:35:37 toromachine dhclient[22025]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12 (xid=0x6a052979)
Jul 07 18:35:47 toromachine NetworkManager[19050]: <warn>  [1499477747.7752] dhcp4 (eth0): request timed out
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.7753] dhcp4 (eth0): state changed unknown -> timeout
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8079] dhcp4 (eth0): canceled DHCP transaction, DHCP client pid 22025
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8079] dhcp4 (eth0): state changed timeout -> done
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8086] device (eth0): state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8091] manager: NetworkManager state is now DISCONNECTED
Jul 07 18:35:47 toromachine NetworkManager[19050]: <warn>  [1499477747.8098] device (eth0): Activation: failed for connection 'eth0'
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8113] device (eth0): state change: failed -> disconnected (reason 'none') [120 30 0]
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8151] policy: auto-activating connection 'eth0'
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8166] device (eth0): Activation: starting connection 'eth0' (e7361020-1796-4583-aab9-9d479aac94fe)
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8167] device (eth0): state change: disconnected -> prepare (reason 'none') [30 40 0]
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8168] manager: NetworkManager state is now CONNECTING
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8170] device (eth0): state change: prepare -> config (reason 'none') [40 50 0]
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8180] device (eth0): state change: config -> ip-config (reason 'none') [50 70 0]
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8182] dhcp4 (eth0): activation: beginning transaction (timeout in 45 seconds)
Jul 07 18:35:47 toromachine NetworkManager[19050]: <info>  [1499477747.8206] dhcp4 (eth0): dhclient started with pid 22043
Jul 07 18:35:47 toromachine dhclient[22043]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 (xid=0x15238503)
Jul 07 18:35:50 toromachine dhclient[22043]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5 (xid=0x15238503)
Jul 07 18:35:55 toromachine dhclient[22043]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9 (xid=0x15238503)
Jul 07 18:36:04 toromachine dhclient[22043]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11 (xid=0x15238503)
Jul 07 18:36:15 toromachine dhclient[22043]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 20 (xid=0x15238503)
Jul 07 18:36:32 toromachine NetworkManager[19050]: <warn>  [1499477792.7707] dhcp4 (eth0): request timed out
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7708] dhcp4 (eth0): state changed unknown -> timeout
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7874] dhcp4 (eth0): canceled DHCP transaction, DHCP client pid 22043
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7875] dhcp4 (eth0): state changed timeout -> done
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7881] device (eth0): state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7885] manager: NetworkManager state is now DISCONNECTED
Jul 07 18:36:32 toromachine NetworkManager[19050]: <warn>  [1499477792.7891] device (eth0): Activation: failed for connection 'eth0'
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7902] device (eth0): state change: failed -> disconnected (reason 'none') [120 30 0]
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7937] policy: auto-activating connection 'eth0'
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7945] device (eth0): Activation: starting connection 'eth0' (e7361020-1796-4583-aab9-9d479aac94fe)
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7954] device (eth0): state change: disconnected -> prepare (reason 'none') [30 40 0]
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7955] manager: NetworkManager state is now CONNECTING
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7958] device (eth0): state change: prepare -> config (reason 'none') [40 50 0]
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7969] device (eth0): state change: config -> ip-config (reason 'none') [50 70 0]
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7971] dhcp4 (eth0): activation: beginning transaction (timeout in 45 seconds)
Jul 07 18:36:32 toromachine NetworkManager[19050]: <info>  [1499477792.7984] dhcp4 (eth0): dhclient started with pid 22057

          
$ cat /var/lib/NetworkManager/NetworkManager.state

[main]
NetworkingEnabled=true
WirelessEnabled=false
WWANEnabled=true
WimaxEnabled=true


$ sudo dhcpdump -i eth0

  TIME: 2017-07-07 18:45:11.570
    IP: 0.0.0.0 (28:f1:e:48:52:d2) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)
    OP: 1 (BOOTPREQUEST)
 HTYPE: 1 (Ethernet)
  HLEN: 6
  HOPS: 0
   XID: 04f7d201
  SECS: 39
 FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 28:f1:0e:48:52:d2:00:00:00:00:00:00:00:00:00:00
 SNAME: .
 FNAME: .
OPTION:  53 (  1) DHCP message type
1 (DHCPDISCOVER)
OPTION: 12 ( 11) Host name
toromachine
OPTION: 55 ( 18) Parameter Request List
1 (Subnet mask)
28 (Broadcast address)
2 (Time offset)
3 (Routers)
15 (Domainname)
6 (DNS server)
119 (Domain Search)
12 (Host name)
44 (NetBIOS name server)
47 (NetBIOS scope)
26 (Interface MTU)
121 (Classless Static Route)
42 (NTP servers)
121 (Classless Static Route)
249 (MSFT - Classless route)
33 (Static route)
252 (MSFT - WinSock Proxy Auto Detect)
42 (NTP servers)
 
Old 08-09-2017, 09:40 AM   #2
Jjanel
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Registered: Jun 2016
Distribution: any&all, in VBox; Ol'UnixCLI; NO GUI resources
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Blog Entries: 12

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Hi & belated welcome to LQ. Sorry you didn't get an answer here

Looks like it got solved over here! Great!
Quote:
It was an issue with the DHCP of the university.
My computer was not allowed to be connected to the DHCP anymore.
I hope you give LQ another 'try', with a future question. Best wishes always!
 
1 members found this post helpful.
  


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