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Diffstat (limited to 'tests/mv/vfat')
-rw-r--r-- | tests/mv/vfat | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/tests/mv/vfat b/tests/mv/vfat new file mode 100644 index 0000000..20b10e2 --- /dev/null +++ b/tests/mv/vfat @@ -0,0 +1,66 @@ +#!/bin/sh +# This is just for the record. +# This test is not run. + +# Copyright (C) 2003 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301, USA. + +exit 0 + +cat <<\EOF + +Prior to 5.0.91, ... + +The problem: + On a VFAT file system with coreutils-5.0.90, `mv FOO foo' removes the + sole copy of the file named by both the source and destination arguments. + +Demonstrate the problem, as root: + +cd /tmp \ + && dd if=/dev/zero of=1 bs=8192 count=50 \ + && mkdir mnt && mkfs -t vfat 1 \ + && mount -oloop 1 mnt && cd mnt \ + && printf something important > foo \ + && mv foo FOO +test -f FOO && echo PASS-1 || echo FAIL-1 +ln foo bar +mv foo FOO +test -f FOO && echo PASS-2 || echo FAIL-2 + +And in case you actually do the above, you can do this to clean up: + + cd /tmp && umount /tmp/mnt && rm -r 1 mnt + +Hey! Can't create hard links on vfat. +The above `ln' evokes an `operation not permitted' failure. + +This demonstrates the same thing with file system type `umsdos' +No hard links: + +cd /tmp \ + && dd if=/dev/zero of=1 bs=8192 count=50 \ + && mkdir mnt && mkfs -t msdos 1 \ + && mount -t umsdos -oloop 1 mnt && cd mnt \ + && printf something important > foo \ + && mv foo FOO +test -f FOO && echo PASS-1 || echo FAIL-1 +ln foo bar +mv foo FOO +test -f FOO && echo PASS-2 || echo FAIL-2 + +EOF |