ho un Acer Aspire 1520, che lavora senza grossi problemi con Ubuntu da ormai 4 anni. Ho un collegamento wireless che funziona bene con ndiswrapper e, fino a ieri, un collegamento ethernet altrettanto ben funzionante.
Ieri ho fatto gli aggiornamenti ubuntu, ed oggi quando accendo il pc....... è come se la scheda ethernet non ci fosse più: il network manager mi dice: "rete via cavo disconnesso" .... strano. provo allora a tirare su eth0:
Codice: Seleziona tutto
cosma@cosma-acer:~$ sudo ifup eth0
SIOCSIFFLAGS: Cannot allocate memory
SIOCSIFFLAGS: Cannot allocate memory
Failed to bring up eth0provo allora a farmi un quadro della situazione con sudo ifconfig -a :
Codice: Seleziona tutto
cosma@cosma-acer:~$ sudo ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0a:e4:a0:20:ea
indirizzo inet:10.5.3.4 Bcast:10.5.3.255 Maschera:255.255.255.0
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:0 (0.0 B) Byte TX:0 (0.0 B)
Interrupt:22 Indirizzo base:0x4400
lo Link encap:Loopback locale
indirizzo inet:127.0.0.1 Maschera:255.0.0.0
indirizzo inet6: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:10202 errors:0 dropped:0 overruns:0 frame:0
TX packets:10202 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:0
Byte RX:1878787 (1.8 MB) Byte TX:1878787 (1.8 MB)
vboxnet0 Link encap:Ethernet HWaddr 0a:00:27:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:0 (0.0 B) Byte TX:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:0e:9b:78:eb:29
indirizzo inet:192.168.0.57 Bcast:192.168.0.255 Maschera:255.255.255.0
indirizzo inet6: fe80::20e:9bff:fe78:eb29/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11561 errors:0 dropped:0 overruns:0 frame:0
TX packets:13876 errors:0 dropped:6 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:7173941 (7.1 MB) Byte TX:1973237 (1.9 MB)
Interrupt:21 Memoria:c0005000-c0005800
Codice: Seleziona tutto
cosma@cosma-acer:~$ sudo lshw -C network
*-network:0
description: Wireless interface
product: [AirConn] INPROCOMM IPN 2220 Wireless LAN Adapter (rev 01)
vendor: Linksys, A Division of Cisco Systems
physical id: a
bus info: pci@0000:00:0a.0
logical name: wlan0
version: 00
serial: 00:0e:9b:78:eb:29
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ndiswrapper+neti2220 driverversion=1.55+LanExpress,03/29/2004,2.10. ip=192.168.0.57 latency=64 link=yes maxlatency=32 mingnt=32 multicast=yes wireless=IEEE 802.11g
resources: irq:21 ioport:1c00(size=32) memory:c0006000-c000601f memory:c0005000-c00057ff
*-network:1 DISABLED
description: Ethernet interface
product: RTL-8169 Gigabit Ethernet
vendor: Realtek Semiconductor Co., Ltd.
physical id: c
bus info: pci@0000:00:0c.0
logical name: eth0
version: 10
serial: 00:0a:e4:a0:20:ea
size: 1GB/s
capacity: 1GB/s
width: 32 bits
clock: 66MHz
capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=10.5.3.4 latency=64 link=yes maxlatency=64 mingnt=32 multicast=yes port=MII speed=1GB/s
resources: irq:22 ioport:1000(size=256) memory:c0006400-c00064ff memory:40000000-4001ffff(prefetchable)
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: vboxnet0
serial: 0a:00:27:00:00:00
capabilities: ethernet physical
configuration: broadcast=yes multicast=yes
Codice: Seleziona tutto
auto lo
iface lo inet loopbackCodice: Seleziona tutto
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.5.3.4
netmask 255.255.255.0
gateway 10.5.3.254ma al comando: sudo /etc/init.d/networking restart, ottengo il solito:
Codice: Seleziona tutto
cosma@cosma-acer:~$ sudo /etc/init.d/networking restart
* Reconfiguring network interfaces... SIOCDELRT: No such process
SIOCSIFFLAGS: Cannot allocate memory
SIOCSIFFLAGS: Cannot allocate memory
Failed to bring up eth0.
Ogni suggerimento è gradito.
Grazie, saluti.



