mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-21 15:57:30 +08:00
50 lines
1.3 KiB
Bash
50 lines
1.3 KiB
Bash
#!/bin/sh
|
|
# This is just for the record.
|
|
# This test is not run.
|
|
|
|
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
|