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Added automatic extraction script

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Horea Christian 2022-12-15 17:41:42 -05:00
parent d30ac26a8c
commit fcd6f88870
2 changed files with 34 additions and 2 deletions
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10
README.md
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@ -61,7 +61,13 @@ mkstage4.sh [-q -c -b -l -k -p] [-s || -t <target-mountpoint>] [-e <additional e
## System Tarball Extraction
### Single-threaded
### Automatic (Multi-threaded)
We provide a script for convenient extraction, `exstage4`, which is shipped with this package.
Currently it simply automates the Multi-threaded extraction selection listed below and otherwise has no functionality except checking that the file name looks sane.
If in doubt, use one of the explicit extraction methods described below.
### Explicit Single-threaded
Tarballs created with mkstage4 can be extracted with:
@ -78,7 +84,7 @@ tar xvjpf archive_name.tar.bz2.kmod
tar xvjpf archive_name.tar.bz2.ksrc
```
### Multi-threaded
### Explicit Multi-threaded
If you have a parallel de/compressor installed, you can extract the archive with one of the respective commands:

26
exstage4.sh Executable file
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@ -0,0 +1,26 @@
#!/usr/bin/env bash
STAGE_FILE=${1}
echo "${STAGE_FILE}"
EXT="${STAGE_FILE##*.}"
TARFILE="${STAGE_FILE%%.$EXT}"
TAREXT="${TARFILE##*.}"
if [[ $TAREXT != "tar" ]]; then
echo "The stage file you are trying to unpack (\`$STAGE_FILE\`) does not appear to be an archived TAR file"
else
echo "Extracting \`${STAGE_FILE}\` inplace."
fi
if [ $EXT == "xz" ]; then
tar -I 'xz -T0' -xvf "${STAGE_FILE}" --xattrs-include='*.*' --numeric-owner
elif [ $EXT == "bz2" ]; then
tar -I pbzip2 -xvf "${STAGE_FILE}" --xattrs-include='*.*' --numeric-owner
elif [ $EXT == "gz" ]; then
tar -I unpigz -xvf "${STAGE_FILE}" --xattrs-include='*.*' --numeric-owner
else
echo "Not sure how to unpack \`${STAGE_FILE}\`"
fi