Notices

cd /opt/program/bin

rm -f program        *OOPS!!!*

extundelete --restore-file /dev/mmcblk0p2 /opt/program/bin/program

cp /opt/program/bin/RECOVERED_FILES/opt/program/bin/program /opt/program/bin

rm -rf /opt/program/bin/RECOVERED_FILES

# Making the (40 MB) test file:
dd if=/dev/zero of=testpartition.dd bs=4k count=1 seek=10k

# Also, try with ext4 if e2fsprogs supports it
# ext3 test file system
mkfs.ext3 -b 4096 -I 256 -J size=4 testpartition.dd

# ext3 with external journal test file system
sudo mke2fs -O journal_dev -b 1024 /dev/ram0 65536
# Then do this,
sudo mke2fs -b 1024 -J device=/dev/ram0 testpartition.dd
# OR, 
# tune2fs -f -O ^has_journal testpartition.dd
# sudo tune2fs -J device=/dev/ram0 testpartition.dd


# Mount the test file:
mkdir testpartition
sudo mount -o loop -t ext3 testpartition.dd testpartition/


# Add files to the new filesystem:
cd testpartition

for (( n=1 ; n < 80 ; n++ )) ; do
  echo "The quick brown fox jumps over the lazy dog";
done > test.file1

for (( n=1 ; n < 50 ; n++ )) ; do
  echo "The quick brown fox jumps over the lazy dog";
done > test.file2


mkdir -p dir1/dir2 dir1/dir3/dir4

# Create a bunch of files to force dir4 to have an extended dir block.
echo "Temporary file" > dir1/dir3/dir4/Supercalifragilisticexpialidocious.AntidisestablishmentarianismTreatise+ThereoncewasamanfromNantucket.Floccinaucinihilipilification

echo "Temporary file" > dir1/dir3/dir4/AntidisestablishmentarianismTreatise+Supercalifragilisticexpialidocious-Floccinaucinihilipilification.ThereoncewasamanfromNantucket-AntidisestablishmentarianismTreatise+Supercalifragilisticexpialidocious

echo "Temporary file" > dir1/dir3/dir4/ThereoncewasamanfromNantucket-Floccinaucinihilipilification.AntidisestablishmentarianismTreatise-Supercalifragilisticexpialidocious

echo "Temporary file" > dir1/dir3/dir4/Floccinaucinihilipilification+ThereoncewasamanfromNantucket-AntidisestablishmentarianismTreatise.Floccinaucinihilipilification

echo "Temporary file" > dir1/dir3/dir4/Supercalifragilisticexpialidocious.AntidisestablishmentarianismTreatise+ThereoncewasamanfromNantucket.Floccinaucinihilipilification2

echo "Temporary file" > dir1/dir3/dir4/AntidisestablishmentarianismTreatise+Supercalifragilisticexpialidocious-Floccinaucinihilipilification.ThereoncewasamanfromNantucket-AntidisestablishmentarianismTreatise+Supercalifragilisticexpialidocious2

echo "Temporary file" > dir1/dir3/dir4/ThereoncewasamanfromNantucket-Floccinaucinihilipilification.AntidisestablishmentarianismTreatise-Supercalifragilisticexpialidocious2

echo "Temporary file" > dir1/dir3/dir4/Floccinaucinihilipilification+ThereoncewasamanfromNantucket-AntidisestablishmentarianismTreatise.Floccinaucinihilipilification2

for (( n=1 ; n < 100 ; n++ )) ; do
  echo Lorem ipsum dolor sit amet.;
done > dir1/dir3/dir4/test.file5

echo "This is a test" > dir1/dir3/dir4/trial1
sync

# Wait a few seconds to ensure a new journal transaction
sleep 6

# Delete objects from the file system
rm -rf dir1/dir3/dir4
rm test.file2
sync

# New tests
mkdir -p dir5/dir6/dir7/dir8
for (( n=1 ; n < 80 ; n++ )) ; do
  echo "The quick brown fox jumps over the lazy dog";
done > dir5/dir6/dir7/dir8/newtest4a

sync

rm dir5/dir6/dir7/dir8/newtest4a
sync

# Unmount the test file:
cd ..
sudo umount testpartition


# Run extundelete
cd extundelete
src/extundelete ../testpartition.dd --restore-file dir1/dir3/dir4/test.file5

# the following doesn't work yet
src/extundelete ../testpartition.dd --restore-file dir5/dir6/dir7/dir8/test.file1
# but it will still find it on --restore-all
src/extundelete ../testpartition.dd --restore-all