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Re: string "defaults" in fstab options columns (was: User rw Permissions on New Hard Drive)




Cindy-Sue Causey composed on 2019-03-01 01:30 (UTC-0500):

> Felix Miata wrote:

>> David Wright composed on 2019-02-28 20:26 (UTC-0600):

>>> I always add an explicit rw or ro under options, along with defaults.

>> English can be tricky. Please clarify. AIUI, the string "defaults" is a
>> placeholder, unnecessary if
>> any other option is specified. Man mount doesn't make it clear to me. I
>> can't recall ever including
>> it along with any other option. I've always assumed all defaults not
>> explicitly overridden will be
>> used.

> That's what I'd been thinking, too. Because of your question, I just
> tried a search for...

> "defaults,rw" /etc/fstab

> Some things pulled up from varying resources out there. Without
> actually visiting any of the results, sometimes they just said the
> above. Other times, they would have "defaults,rw" with a few of the
> various remaining options tacked on the end of that, as well.

To be clear, "including it" above meant an fstab line I created from scratch or any options entry I
edited, not any created by any Linux installer. I just checked original fstabs created by

Etch (in 2006)
Fedora 7 (in 2006)
openSUSE 10.3 (in 2007)
Squeeze (in 2011)
openSUSE 42.1 (in 2015)
Bionic (in 2018)
Buster (in 2018)

on PCs here. Not one contains the string "defaults" adjacent to a comma. I have seen defaults
adjacent to a comma in fstab option lines in web searches, mailing lists and forums, but don't know
why it ever happens.
-- 
Evolution as taught in public schools is religion, not science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/