Red Hat Bugzilla – Bug 750506
/etc/filesystems does not contain 'ext4'
Last modified: 2012-01-30 16:00:50 EST
Description of problem:
The mount command may use /etc/filesystems for mounting filesystems with type 'auto':
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
The setup RPM creates an /etc/filesystems which only contains
# cat /etc/filesystems
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):
Steps to Reproduce:
Thanks for the report, fixed in rawhide(ext4 added), setup-2.8.42-1.fc17 ... do you want the update in f15 or rawhide fix is enough?
rawhide is sufficient for me
Ok, thanks for quick reply, closing RAWHIDE.
*** Bug 769962 has been marked as a duplicate of this bug. ***
Reopening, will fix that in F15/F16 as well.
setup-2.8.36-3.fc16 has been submitted as an update for Fedora 16.
setup-2.8.33-2.fc15 has been submitted as an update for Fedora 15.
also broken in RHEL6
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing setup-2.8.36-3.fc16'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
setup-2.8.36-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
setup-2.8.33-2.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.