Re: ssh session with qemu-arm using busybox

From: Suzuki K Poulose
Date: Tue Mar 12 2019 - 10:11:47 EST




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@localhost: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@localhost: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