On 2020-01-31 03:17, Ulli Horlacher wrote:
> On Thu 2020-01-30 (12:26), Eric Blake wrote:
>
>>> Are this directory hard links?
>>
>> No, rather they are parallel mount points (the same directory mounted
>> under two different names).
>
> /: mount
> C:/cygwin64/bin on /usr/bin type ntfs (binary,auto)
> C:/cygwin64/lib on /usr/lib type ntfs (binary,auto)
> C:/cygwin64 on / type ntfs (binary,auto)
> C: on /cygdrive/c type ntfs (binary,posix=0,user,noumount,auto)
>
> That's it! Thanks!
>
> But why does Cygwin mount the directories /usr/bin and /usr/lib extra?
$ cmd /c dir `cygpath -aw /usr`
...
2020-01-30 17:51 <DIR> include
2020-01-19 13:55 <DIR> libexec
2019-09-29 13:38 <DIR> local
2020-01-19 13:55 <DIR> sbin
2020-01-19 13:56 <DIR> share
2016-10-25 14:43 <DIR> src
2019-12-18 11:07 <DIR> tmp
...
No /usr/bin nor /usr/lib.
> Why not a symbolic link?
Mounts ensure the paths exist and are identical to /bin /lib.
> And which process does this mounting?
Every Cygwin process at startup performs those mounts and any alternatives in
/etc/fstab and /etc/fstab.d/*, see "Cygwin User's Guide", Chapter 3. Using
Cygwin, /The Cygwin Mount Table/:
http://cygwin.com/cygwin-ug-net/using.html#mount-table
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
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