On 16 March 2011 12:24, Sid Kapoor <sidkapoor2...@gmail.com> wrote: > I am trying to run qemu after building rootfs.img as follows: > > $ qemu-system-arm -M realview-pbx-a9 -m 1024M -kernel zImage.rfs -serial > stdio -append "root=/dev/hda1 rw console=ttyAMA0 rdinit=/sbin/init" -net nic > -net tap,ifname=tap0,script=no -hda rootfs.img > > But the issue I am facing is that there is no /dev/hda1 or similar device > nodes in the qemu setup.
This is because the PCI controller for the Realview PBX is not modelled by QEMU, so there is no way to proivde an IDE or SCSI controller to the guest. However, if you are willing to run qemu built from git (rather than from a released version), there was support added very recently for the SD card. This lets you run your image as an SD card image, by passing '-sd rootfs.img' to qemu and using "root=/dev/mmcblk0p1" rather than hda1. It's possible that the SD card approach may impose restrictions on maximum size or alignment of the image which an hd image does not; I haven't investigated. Hope this helps -- PMM
