base-files: fix ramoverlay function with kernels 3.18+
Even though there are not many users left within the OpenWrt tree it seems this function broke during the kernel 3.18 transition. Fix it by providing a workdir as required by overlayfs. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> SVN-Revision: 47015
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@ -75,13 +75,14 @@ pivot() { # <new_root> <old_root>
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}
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}
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}
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}
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fopivot() { # <rw_root> <ro_root> <dupe?>
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fopivot() { # <rw_root> <work_dir> <ro_root> <dupe?>
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/bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt
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/bin/mount -o noatime,lowerdir=/,upperdir=$1,workdir=$2 -t overlay "overlayfs:$1" /mnt
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pivot /mnt $2
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pivot /mnt $3
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}
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}
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ramoverlay() {
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ramoverlay() {
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mkdir -p /tmp/root
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mkdir -p /tmp/root
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/bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root
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/bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root
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fopivot /tmp/root /rom 1
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mkdir -p /tmp/root/root /tmp/root/work
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fopivot /tmp/root/root /tmp/root/work /rom 1
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}
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}
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