On 3/13/19 1:08 AM, Pintu Agarwal wrote: > On Tue, Mar 12, 2019 at 7:41 PM Suzuki K Poulose <suzuki.poulose@xxxxxxx> wrote: >> >> >> >> 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. >> > > My busybox is a very minimal rootfs. It hardly contains any commands. > Is there any precompiled busybox for arm (cpio image), available (with > ssh, scp and networking in-built), which I can use directly to boot ? > > what else I am missing to make ssh/scp working on qemu ? > When I was working on arm binary rewriting/instrumentation in the university, I use the image created by Linaro. http://releases.linaro.org/ One example would be https://www.linaro.org/blog/linaro-16-04-release-available-for-download-2/ or https://releases.linaro.org/archive/ubuntu/images/developer-arm64/15.12/linaro-vivid-developer-20151215-114.tar.gz The license should be good for academia. I do not know if there is any restrictions on commercial/industry usage. Thank for Linaro again for providing those images which helped me a lot when I was in the university! Dongli Zhang _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
