[pocket-linux] Chapter 3: RAMdisk: Incomplete write

[Bettes]

Hi, some more info

If I use the image disk for ROOT,  I am able to start up.
So I am pretty sure that the error must be somewhere in the root disk

Here is the script I am using to make the root disk. I am running it as  root
I hope somebody sees the mistake

##############START#############
#!/bin/sh

MPF=/media/floppy
MPR=/media/ramDisk
DBF=/home/bettes/Documents/bash-2.05a
LastPWD=$PWD


#Format Ramdisk on ram7
echo "Format RamDisk"
echo "*************"
umount /dev/ram7
dd if=/dev/zero of=/dev/ram7 bs=1k count=4096
mke2fs -m0 /dev/ram7
mount /dev/ram7 /media/ramDisk

#Compiling sources
echo "Compiling Sources"
echo "********************"
cd $DBF
make distclean
./configure --enable-minimal-config --host=i386-pc-linux-gnu
make
strip bash

cd $LastPWD

#create all directories on the ramDisk
echo "Creating Directories"
echo "********************"
mkdir $MPR/bin
mkdir $MPR/dev
mkdir $MPR/lib

#make the devices in dev
echo "Creating Devices"
echo "****************"
mknod $MPR/dev/console c 5 1

#copying the files
echo "Copying Files"
echo "*************"
cp $DBF/bash $MPR/bin/

cd $MPR/bin
ln -s bash sh
cd $LastPWD

strip --strip-unneeded -o $MPR/lib/libdl.so.2 /lib/libdl.so.2
strip --strip-unneeded -o $MPR/lib/libc.so.6 /lib/libc.so.6
strip --strip-unneeded -o $MPR/lib/ld-linux.so.2 /lib/ld-linux.so.2

#Setting file permissions
chmod 744 $MPR/lib/*

#create image of ramDisk
echo "Make RamDisk Image"
echo "******************"
umount /dev/ram7
dd if=/dev/ram7 of=./root_ch3_image bs=1k

rm ./root_ch3_image.gz
gzip -9 ./root_ch3_image

#Format floppy
echo "Copy Image to floppy"
echo "********************"
umount /dev/fd0
dd if=./root_ch3_image.gz of=/dev/fd0 bs=1k

#############END##############

On Friday 30 April 2004 17:21, Bart wrote:
> Hi,
>
> I survived chapter 2 and moved to chapter 3.
> I am compiling kernel 2.6.XX and using GRUB as a loader
>
> Now I am having a strange problem
> After the bootdisk has been loaded I get
>
> > VFS: Insert root floppy disk to be loaded into RAM disk and press ENTER
>
> I do that and the next messages are
>
> >RAMDISK: Compressed image found at block 0
> >RAMDISK:  Incomplete write (-28 != 32768) 4194304
> >VFS: Insert root floppy and press ENTER
>
> Then I press enter and i got
>
> >Kernel panic: VFS: Unable to mount root on fd0
>
> I don't see the mistake. :-(
>
>
> Bettes
>
>
>
>
>
>
>
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