Description of problem:

The mount command may use /etc/filesystems for mounting filesystems with type 'auto':

 [quote mount(8)]
              If  no  -t option is given, or if the auto type
              is specified,  mount  will  try  to  guess  the
              desired  type.   Mount  uses  the blkid or vol‐
              ume_id  library  for  guessing  the  filesystem
              type;  if  that  does not turn up anything that
              looks familiar, mount will try to read the file
              /etc/filesystems,  or,  if that does not exist,
              /proc/filesystems.  All of the filesystem types
              listed  there  will  be tried, except for those
              that are labeled "nodev"  (e.g.,  devpts,  proc
              and  nfs).   If /etc/filesystems ends in a line
              with  a  single  *  only,   mount   will   read
              /proc/filesystems afterwards.
 [/quote]

The setup RPM creates an /etc/filesystems which only contains

  # cat /etc/filesystems 
  ext3
  ext2
  nodev proc
  nodev devpts
  iso9660
  vfat
  hfs
  hfsplus


Since /etc/filesystems exists, and does not contain '*', /proc/filesystems will never be used.

Ordinarily libblkid would detect the filesystem type, so /etc/filesystems will not be consulted, but if it is consulted, it'll miss many modern filesystems, in particular 'ext4', but also 'brtfs'

Since ext4 is the default Fedora filesystem, it should really be included in /etc/filesystems. Alternatively appending a '*' would let it fallback to using /proc/filesystems.

Version-Release number of selected component (if applicable):
setup-2.8.31-2.fc15.noarch

How reproducible:
N/A

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: