Bug#68659: mke2fs(8) is inaccurate
Le 2000-08-13 13:27:38 +0200, Martin Schulze écrivait :
> > The filesystem image on the root disk (root.bin) shouldn't
> > use ext2 extensions that are incompatible with 2.0.x kernels.
> > The current image uses those extensions, making it impossible to
> > modify the filesystem with a slink system.
> Looking at the current code I see how it is created:
> mke2fs -F -q -N $inodes -m 0 $floppy
> Nothing that looks 2.2 specific. However there may be some implicit
> extensions if one creates an ext2 with current mke2fs and 2.2.x.
mke2fs defaults to 2.2 specific extension when used with a 2.2+ kernel,
unless told otherwise :
Create the filesystem with the listed set of
features (filesystem options). The following
features are supported: sparse_super, which cause
the filesystem to use sparse superblocks, and
filetype, which will cause the filesystem to store
file type information in directory entries.
Currently, both features are turned on by default
unless mke2fs is run on a system with a pre-2.2
Linux kernel. Warning: Pre-2.2 Linux kernels do
not properly support the filesystems that use
either of these two features. Filesystems that
may need to mounted on pre-2.2 kernels should be
created with -O none which will disable both of
these features, even if mke2fs is run on a system
which can support these features.