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lsinitrd: use xz with --single-stream, if available

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The F16 installation image is two concatenated cpio images:
[xz-compressed dracut initramfs][uncompressed cpio with /squashfs.img]

So to show the contents, use xz with the "--single-stream" option.

https://bugzilla.redhat.com/show_bug.cgi?id=742299
This commit is contained in:
Harald Hoyer 2012-01-23 10:34:03 +01:00
parent 1fcf2d2f4a
commit c96425c364
1 changed files with 6 additions and 2 deletions
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8
lsinitrd
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@ -36,12 +36,16 @@ image="${1:-/boot/initramfs-$(uname -r).img}"
CAT=zcat
FILE_T=$(file "$image")
if echo "test"|xz|xz -dc --single-stream; then
XZ_SINGLE_STREAM="--single-stream"
fi
if [[ "$FILE_T" =~ ": gzip compressed data" ]]; then
CAT=zcat
elif [[ "$FILE_T" =~ ": xz compressed data" ]]; then
CAT=xzcat
CAT="xzcat $XZ_SINGLE_STREAM"
elif [[ "$FILE_T" =~ ": XZ compressed data" ]]; then
CAT=xzcat
CAT="xzcat $XZ_SINGLE_STREAM"
elif [[ "$FILE_T" =~ ": data" ]]; then
CAT=lzcat
fi