bug fix: allow symlinks when coping existing files to chroot

symptom:

when etc/debootstrap/etc/... were symlinks:

 /bin/chroot-script: line 52: /etc/apt/sources.list: Too many levels of symbolic links

justification, quoting from mlist:

"please add '--dereference' whenever 'cp' files from host into chroot
system. I want to symlink them into /etc/debootstrap/etc/ instead of copying
them over."

diff --git a/grml-debootstrap b/grml-debootstrap
index 17e7385..af11daa 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -760,12 +760,12 @@ preparechroot() {
   # MAKEDEV is just a forking bomb crap, let's do it on our own instead :)
   ( cd $MNTPOINT/dev && tar zxf /etc/debootstrap/devices.tar.gz )
 
-  # copy any existing existing files to chroot
-  [ -d /etc/debootstrap/boot  ] && cp -a /etc/debootstrap/boot/*  $MNTPOINT/boot/
-  [ -d /etc/debootstrap/etc   ] && cp -a /etc/debootstrap/etc/*   $MNTPOINT/etc/
-  [ -d /etc/debootstrap/share ] && cp -a /etc/debootstrap/share/* $MNTPOINT/share/
-  [ -d /etc/debootstrap/usr   ] && cp -a /etc/debootstrap/usr/*   $MNTPOINT/usr/
-  [ -d /etc/debootstrap/var   ] && cp -a /etc/debootstrap/var/*   $MNTPOINT/var/
+  # copy any existing files to chroot
+  [ -d /etc/debootstrap/boot  ] && cp -a -L /etc/debootstrap/boot/*  $MNTPOINT/boot/
+  [ -d /etc/debootstrap/etc   ] && cp -a -L /etc/debootstrap/etc/*   $MNTPOINT/etc/
+  [ -d /etc/debootstrap/share ] && cp -a -L /etc/debootstrap/share/* $MNTPOINT/share/
+  [ -d /etc/debootstrap/usr   ] && cp -a -L /etc/debootstrap/usr/*   $MNTPOINT/usr/
+  [ -d /etc/debootstrap/var   ] && cp -a -L /etc/debootstrap/var/*   $MNTPOINT/var/
 
   # copy local network setup to chroot
   if [ -r /etc/network/interfaces -a ! -r "${MNTPOINT}"/etc/network/interfaces ] ; then