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> Date: Wed, 22 Aug 2012 11:24:11 -0400 > Subject: Re: Working rootfs to load host file system from RAM > From: c.dall@xxxxxxxxxxxxxxxxxxxxxx > To: jessica.allison.2012@xxxxxxxxxxx > CC: kvmarm@xxxxxxxxxxxxxxxxxxxxx > > On Wed, Aug 22, 2012 at 11:10 AM, Jessica Allison > <jessica.allison.2012@xxxxxxxxxxx> wrote: > > Has anyone got a working rootfs that I can boot from directly on the ARM > > Fast Model simulator? I'm not talking about one for the guest but one for > > the host. > > > > I can properly boot the system in the simulator from NFS, but when I try to > > build an initramfs from my NFS filesystem and attach that to the simulator > > with --initrd xxx then the kernel seems to hang after having extracted the > > initramfs and then freed the memory - it stops doing anything after saying > > "Freeing init memory". > > > > I have created the initramfs by just doing a > > > > find ./ | cpio -o -H newc | gzip > ./initrd.cpio.gz > > > > in the directory which is my NFS filesystem. Isn't that sufficient? > > > > Btw I have also tried to build the initramfs into the kernel by configuring > > CONFIG_INITRAMFS_SOURCE=xxx - however, then what happened is that when the > > system booted it only said "error uncompressing kernel" right at the start. > > > For your host system you should be fine with NFS. > > For the guest you need something really simple if it's not going to be > too big, try with this one: > http://www.cs.columbia.edu/~cdall/initrd.img What format is this initramfs and how can I modify it? It doesn't seem to be a cpio.gz? Jess |
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