linux-kernel - Re: ssh session with qemu-arm using busybox

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Date:   Tue, 12 Mar 2019 14:11:41 +0000
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     pintu.ping@...il.com, mick@....forth.gr
Cc:     linux-kernel@...r.kernel.org, kernelnewbies@...nelnewbies.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-riscv@...ts.infradead.org, qemu-devel@...gnu.org
Subject: Re: ssh session with qemu-arm using busybox



On 12/03/2019 14:02, Pintu Agarwal wrote:
>>
>> -netdev user,id=unet,hostfwd=tcp::2222-:22 \
>> -net user \
>>
>> and you 'll get guest's port 22 to be forwarded to hosts port 2222, so
>> you can do
>>
>> ssh root@...alhost:2222
>>
>> from the host.
>>
> 
> I tried many different options, but unfortunately none worked for me.
> 1)
> qemu-system-arm -M vexpress-a9 -m 1024M -kernel
> ../KERNEL/linux/arch/arm/boot/zImage -dtb
> ../KERNEL/linux/arch/arm/boot/dts/vexpress-v2p-ca9.dtb -initrd
> rootfs.img.gz -append "console=ttyAMA0 root=/dev/ram rdinit=/sbin/init
> ip=dhcp" -nographic -smp 4 -netdev user,id=unet,hostfwd=tcp::2222-:22
> -net user
> 
> With this the eth0 interface is removed, and I see this message
> (although login works):
> qemu-system-arm: warning: hub 0 with no nics
> qemu-system-arm: warning: netdev unet has no peer
> Booting Linux on physical CPU 0x0
> <skip>
> NET: Registered protocol family 17
> <skip>
> Run /sbin/init as init process
> ifconfig: SIOCSIFADDR: No such device
> route: SIOCADDRT: Network is unreachable
> 
> But, ssh is still not working.
> ssh root@...alhost:2222
> ssh: Could not resolve hostname localhost:2222: Name or service not known

man ssh

+

Make sure you have sshd in your custom rootfs and has been stared.

Cheers
Suzuki