Re: [nwst-dev] Build in cmd-line and initrd

[<sg....@ay...>]

Hi!

> "console=3Dtty0 mem=3D64M root=3D/dev/ram0 rw init=3D/linuxrc =
ip=3Ddhcp".
> he tosses out my "root=3D" and my "init=3D" and puts in
>        root=3D/dev/nfs nfsroot=3D/pfad/zum/rootfs
> ltsp one. If I use his initrd with my kernel the /linuxrc does not =
seem
> to start (even though its in the ramdisk) when I pass
>	root=3D/dev/ram0 rw init=3D/linuxrc.

> Question@all: Are there known problems/limitation with the ramdisks on
> the Netstation? Is this a possible reason why Garcia uses cramfs
> ramdisks? Has someone made similar experience with cmd-line =
parameters?

Well, lots of cmdlines and different results and I'm going to add yet a =
couple of them more...

I used to have this cmdline when I used to have the system boot out of a =
root NFS filesystem, without using a ramdisk:
console=3DttyS0,9600 console=3Dtty0 root=3D/dev/nfs nfsroot=3D/linuxppc =
ip=3Ddhcp
But now that I have gone to a ramdisk based boot with a smbfs filesystem =
all I have is this:
console=3DttyS0,9600 console=3Dtty0 ip=3Ddhcp

As you can see I'm not specifying any root or init, the kernel finds it =
all by itself, I suppose that may be caused because the ramdisk is being =
included on the kernel itself when we are compiling it using =
zImage.initrd as the target for the kernel build.

As for the kernel messages I'm seeing they should be something like this =
(I'm trying not to change anything as I type them):

RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 2464 blocks [1 disk] into ram disk... done.
Freeing initrd memory: 2464k freed
VFS: Mounted root (cramfs filesystem).
Freeing unused kernel memory 248k init 36k pmac 8k chrp 4k openfirmware
striofb_op_set_var con=3D6 1024x768-1024x768-15bpp mode=3D12690 176 16 =
28 1 96 3 -- act=3D2
...

As far as I know there should be no problems with ext2 filesystem, I =
just chose cramfs because it was easier for me to build that ramdisk =
than others, as you don't need to mount it for creation and a normal =
user can do it, no need for root, and at that time it was the standard =
ramdisk on Debian, which is what I'm using anyway.

Regards...
--
Santiago Garc=EDa Manti=F1=E1n

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