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Am Samstag, den 29.01.2005, 16:08 +0000 schrieb Frederick Bruckman:
> In article <41FB4F6F.8070201@ontographics.com>,
> 	Roman Kennke <roman@ontographics.com> writes:
> >=20
> > I try to run a Java application in Linux emulation. It seems that it ha=
s=20
> > problems with accessing my home directory /home/roman. Obviously only=20
> > the directory structure below /emul/linux is visible and there I have n=
o=20
> > /emul/linux/home/roman directory.
>=20
> That isn't how the emulation generally works. When a linux application
> tries to open "/home/roman", the shim first tries "/emul/linux/home/roman=
/",
> then, if it fails, "/home/roman/". The application isn't supposed to know
> about the "/emul/linux" thing.

Sure. But obviously in my setup this leads to problems. I will try to
describe it here. I was trying to run NetBeans which is a Java app and
thus runs on Java SDK from Sun which in turns runs in Linux emulation.
When I access my home directory /home/roman in NetBeans via a
filechooser box I get the contents of the real thing. When I then choose
a folder and close the box with Ok, the application complains about an
invalid path. Obviously it checked the /emul/linux/home/roman dir
instead of /home/roman and found that it does not exists. I am not sure
if the problem is in the Linux emulation (wrong handling of some
file-related syscalls) or in the JDK (maybe it uses some obscure
syscalls which are not/badly emulated) or NetBeans (maybe uses external
tools in /bin or something) or a combination of these. But I know, that
union mounting /home over /emul/linux/home does help, it solves at least
this problem (and exposes others... )

/Roman


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