5.4. Implementation

5.4.1. System startup

Start the system using the following procedure:

• Boot the PC using the floppy labled "boot disk".

• Type bootdisk init=/bin/sh at the LILO prompt.

• Put in the recently created root disk when prompted.

The output should resemble the example below:

boot: bootdisk init=/bin/sh Loading bootdisk Uncompressing Linux... Ok, booting kernel. .. .. [various kernel messages] .. VFS: Insert root floppy to be loaded into RAM disk and press ENTER RAMDISK: Compressed image found at block 0 VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 178k freed # _

5.4.2. Test proc_fs and local_fs scripts

Run the scripts by typing the following commands at the shell prompt:

bash# PATH=/sbin:/bin:/etc/init.d ; export PATH bash# proc_fs bash# cat /etc/mtab bash# local_fs bash# df

If everything is working properly, then the screen output should look something like the example below.

bash# PATH=/sbin:/bin:/etc/init.d ; export PATH bash# proc_fs bash# cat /etc/mtab /dev/root / ext2 ro 0 0 proc /proc proc rw 0 0 bash# local_fs /dev/ram0: clean 74/1024 files 3178/4096 blocks Remounting / as read-write. Mounting local filesystems. bash# df Filesystem 1k-blocks Used Available Use% Mounted on /dev/root 3963 3045 918 77% /

5.4.3. Create and mount additional filesystems

Remove the root disk floppy and insert a blank diskette labeled "home". Then type the following commands:

bash# mkfs /dev/fd0 bash# fsck /dev/fd0 bash# mount /dev/fd0 /home bash# mkdir /home/floyd bash# cd /home/floyd bash# echo "Goodbye cruel world." > goodbye.txt bash# cat goodbye.txt

5.4.4. System shutdown

bash# cd / bash# umount /dev/fd0 bash# sync

Remove the diskette from fd0 and restart the system using CTRL-ALT-DELETE.