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Subject: Re: virtual box shares are visible in the window, but not in an ssh
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From: Eliot Moss <moss AT cs DOT umass DOT edu>
Message-ID: <2dd4b632-294a-eea7-efba-eb6f4803ceed@cs.umass.edu>
Date: Mon, 17 Aug 2020 12:32:06 -0400
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On 8/17/2020 12:11 PM, marty leisner wrote:
> Its a virtual box shared folder -- I'm mapping "src" to /usr/local/src on the host system.
> 
> $ df
> Filesystem     1K-blocks      Used Available Use% Mounted on
> C:/cygwin64     51856440  45548104   6308336  88% /
> D:                 48666     48666         0 100% /cygdrive/d
> E:             302054400 237185024  64869376  79% /cygdrive/e
> $ 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)
> D: on /cygdrive/d type iso9660 (binary,posix=0,user,noumount,auto)
> E: on /cygdrive/e type vboxsharedfolderfs (binary,posix=0,user,noumount,auto)
> 
> $ id
> uid=197609(marty) gid=197609(marty) groups=197609(marty),401408(Medium Mandatory 
> Level),545(Users),559(Performance Log Users),4(INTERACTIVE),66049(CONSOLE LOGON),11(Authenticated 
> Users),15(This Organization),68578(MicrosoftAccount+martyleisner AT yahoo DOT com 
> <mailto:MicrosoftAccount%2Bmartyleisner AT yahoo DOT com>),113(Local 
> account),4095(CurrentSession),66048(LOCAL),262180(Cloud Account Authentication)
> 
> This is in the remote ssh:
> $ df
> Filesystem     1K-blocks     Used Available Use% Mounted on
> C:/cygwin64     51856440 45549844   6306596  88% /
> D:                 48666    48666         0 100% /cygdrive/d
> 
> marty AT windows10 ~
> $ 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)
> D: on /cygdrive/d type iso9660 (binary,posix=0,user,noumount,auto)
> 
> marty AT windows10 ~
> $ id
> uid=197609(marty) gid=197609(marty) groups=197609(marty),197121(None),114(Local account and member 
> of Administrators group),544(Administrators),545(Users),2(NETWORK),11(Authenticated Users),15(This 
> Organization),113(Local account),4095(CurrentSession),68578(MicrosoftAccount+martyleisner AT yahoo DOT com 
> <mailto:MicrosoftAccount%2Bmartyleisner AT yahoo DOT com>),262154(NTLM Authentication),405504(High 
> Mandatory Level)

So we see that in the second case, E: is not seen by Cygwin.  Does Windows show it to be mounted?  I 
am wondering if the difference is something about VBox and Windows not mounting E: in the second 
case, or if it is something about Cygwin not picking up on E: even if it _is_ mounted.  In the first 
case, it's not a Cygwin issue, but a Windows/VBox one.  In the second case, it's something about 
Cygwin, and we would want information about what Windows shows about the mounted E: share.

Regards - Eliot
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