Hi Dave,
You need to remove the ide and ethernet devices from the VExpress_EMM config in src/dev/arm/RealView.py. Hopefully there will be instructions on how to compile a kernel with PCIe support soon that will make use of these devices. Thanks, Ali On 27.06.2012 10:21, David Roberts wrote: > Hello, > > I tried booting the large-memory ARM platform and kernel with the latest gem5 dev source code. The boot process dies with a "cannot open root device" error. I used the unmodified arm-ubuntu-natty-headless.img disk image. Any suggestions? Thanks! > > My command line is; > > ./build/ARM/m5.opt configs/example/fs.py --machine=VExpress_EMM --kernel=vmlinux.arm.smp.fb.3.2 > > Terminal output is; > > Kernel command line: earlyprintk console=ttyAMA0 lpj=19988480 norandmaps rw loglevel=8 mem=1024MB root=/dev/sda1 > ... > Root-NFS: no NFS server address > VFS: Unable to mount root fs via NFS, trying floppy. > VFS: Cannot open root device "sda1" or unknown-block(2,0) > Please append a correct "root=" boot option; here are the available partitions: > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) > [] (unwind_backtrace+0x0/0xf8) from [] (panic+0x64/0x190) > [] (panic+0x64/0x190) from [] (mount_block_root+0x194/0x238) > [] (mount_block_root+0x194/0x238) from [] (mount_root+0xe8/0xf0) > [] (mount_root+0xe8/0xf0) from [] (prepare_namespace+0x150/0x18c) > [] (prepare_namespace+0x150/0x18c) from [] (kernel_init+0x170/0x174) > [] (kernel_init+0x170/0x174) from [] (kernel_thread_exit+0x0/0x8)
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