On Wed, Apr 03, 2013 at 07:30:08AM -0500, Rob Landley wrote: > Attached is my quick and dirty hack to make rootfs be tmpfs when > CONFIG_TMPFS is > enabled. It can't be this easy or somebody would have done it in the
I don't see anything attached, but... I have been running using tmpfs as my root for years. I tweaked the debian initrd scripts to mount a tmpfs filesystem, cpio recover a compressed cpio image from the disk drive and then pivotroot. Did not require any kernel tweaks. Thanks, Robin > _eight_years_ > since https://lkml.org/lkml/2006/7/31/145 > > Yes, it's got an #ifdef and out of place prototypes. Yes, it > manually calls a module > init function and compensates by making it reentrant. But it works, > and when I > "cat /dev/zero > filename" the filesystem fills _up_ instead of > panicing the kernel. > > So now that I've posted the error, would someone please tell me how > I _should_ have done it? > > Rob > > P.S. If I actually change the filesystem type to a name other than > "rootfs", it panics on the way up because various bits of the kernel > are looking for that magic name. Sigh. > > P.P.S. removing MS_NOUSER is actually intentional, there's a local > cray patch that does the same thing because otherwise you can't > --bind mount directories out of this filesystem, which is a thing > they wanted to do.-- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
