Re: Network not detected

[Alexandre Bencz <alebencz@gmail.com>]

Hi!
QEmu version:

QEMU emulator version 4.2.0 (v4.2.0-11797-g2890edc853-dirty)

The command line that i'm using:

qemu-system-sparc64.exe -machine sun4u,accel=tcg,usb=off -m 2048 -nographic -hda debian_sparc64.qcow2 -net nic,model=ne2k_pci -net user,hostfwd=tcp::2222-:22 -monitor telnet::4440,server,nowait -serial mon:telnet::3333,server,wait

I changed the ne2k_pci to sunhme.. but, not worked...
ANd, I tried with "-net nic" only too

Alexandre S. Bencz
+55 {15} 991-707-384

On 14/04/2020 16:16, Mark Cave-Ayland wrote:

> On 14/04/2020 17:31, Alexandre Bencz wrote:
>
> > Here is the result of this commands:
> >
> > bencz@debian-sparc64:~$ ip link show
> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
> > group default qlen 1000
> >     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> > 2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN
> > mode DEFAULT group default qlen 1000
> >     link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff
> >
> > bencz@debian-sparc64:~$ ip addr show
> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
> > qlen 1000
> >     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> >     inet 127.0.0.1/8 scope host lo
> >        valid_lft forever preferred_lft forever
> >     inet6 ::1/128 scope host
> >        valid_lft forever preferred_lft forever
> > 2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN
> > group default qlen 1000
> >     link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff
> >     inet 10.0.2.15/24 brd 10.0.2.255 scope global enp2s0
> >        valid_lft forever preferred_lft forever
> >     inet6 fe80::5054:ff:fe12:3456/64 scope link
> >        valid_lft forever preferred_lft forever
> >
> > I tried several other options on the q-emu to access the internet but all failed
> > What I find strange is that during the installation, the IP was detected and obtained
> > the date and time information ... but, now that the system is installed, I have no
> > connection ...
> >
> > Alexandre S. Bencz
> > +55 {15} 991-707-384
> >
> > On 05/03/2020 12:52, Anatoly Pugachev wrote:
> > > On Thu, Mar 5, 2020 at 5:03 PM Alexandre Bencz <alebencz@gmail.com> wrote:
> > > > Inside /etc/network/interfaces
> > > >
> > > > # This file describes the network interfaces available on your system
> > > > # and how to activate them. For more information, see interfaces(5).
> > > >
> > > > source /etc/network/interfaces.d/*
> > > >
> > > > # The loopback network interface
> > > > auto lo
> > > > iface lo inet loopback
> > > >
> > > > # The primary network interface
> > > > allow-hotplug enp2s0
> > > > iface enp2s0 inet dhcp
> > > >
> > > > The dmesg log:
> > > >
> > > > $ dmesg
> > > > [    0.001496] PROMLIB: Sun IEEE Boot Prom 'OBP 3.10.24 1999/01/01 01:01'
> > > >           
> > > ...
> > > > [   11.300463] ne2k-pci.c:v1.03 9/22/2003 D. Becker/P. Gortmaker
> > > > [   11.403802] ne2k-pci 0000:02:00.0 eth0: RealTek RTL-8029 found at 0x1fe02800000, IRQ 8, 52:54:00:12:34:56.
> > > > [   12.636822] ne2k-pci 0000:02:00.0 enp2s0: renamed from eth0
> > > >           
> > > First, dmesg shows that driver for network card is loaded, you could
> > > check with "ip link show" to see is there enp2s0 available.
> > >
> > > Second, check with "ip addr show" does your enp2s0 gets an IP address...
> > >         
> >       
> What version of QEMU are you using? The default network card for sun4u has been
> sunhme (Happy Meal Ethernet) for quite some time, so my guess is that you're ending
> up with 2 NICs plugged into your virtual machine which is causing the confusion.
>
> Take a look at the wiki documentation at
> https://wiki.qemu.org/Documentation/Platforms/SPARC for more information and check
> your command line to make sure you're not trying to override the default NIC with
> ne2k_pci.
>
>
> ATB,
>
> Mark.
>