There are several filesystem images (= ramdisk images) in this
directory. They differ in intention and with which kernel versions
they may be used:

 - filesys-1.2.gz

   This ramdisk uses pl0..3 ext2 fs format and was meant to change
   existing 0.9 ext2 filesystems for the new ext2 structure. It may
   also be used to freshly install Linux/68k, but is not very
   convenient for this task. Use it only with an appropriate kernel,
   i.e. 1.2.x below 1..2.13pl3 (incl.)

 - filesys-for-pl4.gz

   This ramdisk is intended *only* for changing ext2 filesystems from
   older formats (0.9, 1.2.13pl3) to the one used in 1.2.13pl4 and
   later. For this, it contains new versions of all ext2 utilities in
   both, a.out and ELF formats. But for freshly installing Linux/68k,
   it lacks some important binaries (tar etc.) Since the image itself
   is in pl4 ext2 format, it can't be used with older kernels.

 - filesys-pl4-newer.{ext2,minix}.gz

   These two ramdisk images are for newly installing Linux, not for
   upgrading. The ext2 version also uses 1.2.13pl4 format, so it can't
   be used with kernels older than that. The minix version does not
   depend on the kernel version. Both contain all necessary
   binaries for setting up a Linux system the first time (making
   filesystems, untarring some basic system). See also the file
   filesys-pl4-newer.README for more detailed instructions.