We've already seen that the memory of the Z consists of 16M of writable flash for the operating system, either 32M or 64M of RAM and, possibly, extra storage on one or both of a CF card and SD card. What follows, then, is a perfectly typical example of memory and storage usage on a 5500, showing the correspondence between memory, filesystem device files and mount points, based on an install of a 40+24 zImage file:
Device FS type Device name Mount Usage(?) 16M writable flash jffs2 /dev/mtdblock4 / 75(?)% 64M RAM: 40M memory ---- 24M storage ext2 /dev/mtdblock6 /mnt/ram 0% 64M CF card vfat /dev/hda1 /mnt/cf 0% 64M SD card vfat /dev/mmcda1 /mnt/card 0%
Some notes about the above:
You can examine your current memory, storage and filesystem configuration with any of:
# cat /etc/fstab # mount # df
Since OZ treats the 16M of flash as writable, you'll notice that you still have some root to install files to flash.
If you don't have a CF card or SD card, obviously you won't have the filesystems corresponding to that storage.
If you installed a 32+0 or 64+0 image file, you won't even have the /mnt/ram filesystem either.
You can examine storage and memory usage through the "System Info" Opie application as well.