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From: ericblake AT comcast DOT net (Eric Blake)
To: cygwin AT cygwin DOT com
Subject: chroot bug?
Date: Thu, 02 Mar 2006 04:56:32 +0000
Message-Id: <030220060456.13296.44067B00000BC6DF000033F022070208530A050E040D0C079D0A@comcast.net>
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I noticed the following strange behavior in chroot:

$ chroot /bin /sleep 60 &
[1] 16220539
$ readlink /proc/${!}/root  # simple test of whether chroot worked
/bin
$ chroot //EBLAKE/share /cygwin/bin/sleep 60 &
[2] 566487
$ readlink /proc/${!}/root   # Good - chrooted to a share
//EBLAKE/share
$ chroot // //EBLAKE/share/cygwin/bin/sleep 60 &
[3] 529435
$ readlink /proc/${!}/root        # Oops - should be //, not /
/
$ chroot //EBLAKE/share/cygwin/bin/sleep 60 &  # Oops, failed to chroot
[4] 566487
$ chroot: cannot chdir to root directory: No such file or directory

Why is chroot failing to find //EBLAKE, when it worked with // (at
least, it slept correctly, although root linked to the wrong place),
and did just fine with //EBLAKE/share?

-- 
Eric Blake

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