On Wed, Aug 22, 2012 at 11:55 AM, Alexander Spyridakis <a.spyridakis@xxxxxxxxxxxxxxxxxxxxxx> wrote: > On 22 August 2012 17:28, Jessica Allison <jessica.allison.2012@xxxxxxxxxxx> > wrote: >> >> > 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 >> >> Cheers I will try that. >> >> Jess > > > In general I have tried initrds of up to 500MB (at least in QEMU if I > remember correctly). You can fit a basic ubuntu debootstrap with an x-server > and a basic window manager, keep in mind though that you must have plenty of > memory for that. Also remember that the init binary should be located on the > root of the filesystem when booting from initrd, make a link to it if not > so. > the 500MB is going to take some time to extract inside KVM on the Fast Models though :) _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
