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Date: Thu, 20 Sep 2007 14:52:41 +0200 From: majkls <majkls@...pere.com> To: Philipp Marek <philipp@...ek.priv.at> CC: Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org, david@...idnewall.com, davidsen@....com, bunk@...tum.de Subject: Re: sys_chroot+sys_fchdir Fix Philipp Marek napsal(a): > Please, everybody, > > don't change that. > > I'm currently using that *feature* (yes, I see it as that) in my > fsvs-chrooter-utility (see > http://fsvs.tigris.org/source/browse/*checkout*/fsvs/trunk/www/doxygen/html/group__howto__chroot.html) > for easier usage of fsvs on older systems. > > - User starts a small wrapper, > - that opens "/", > - chroot()s into a directory and starts fsvs. > - fsvs gets its libraries loaded > - and chroot()s back to the original system. > > Voila! fsvs can use the newest available libraries for that architecture, > without having to change the installed system. > > So I thing this is an example how chroot would not be really used. For DSO loading there is many better ways to load own DSO. Though is this feature described in chroot() manpage, I have not noticed that any serious project uses it. But ok, this is a ferature of chroot(). Also FreeBSD does not support escaping chroot AFAIK. So this feature is very badly portable. Miloslav - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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