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#!/bin/bash
# bootcdbackup.lib
# vim: set filetype=sh :
run_cpiostar_kern()
{
local use_type=$1 # star|cpio
echo >&2 "backup to $backupdir with $use_type"
# exclude all files and directories
(cd $dir; find . -print0 |
sed -e "s|^|\x00|;$ext;s|^\x00||" |
(
if [ "$use_type" = "star" ]; then
sed "s|\x00|\n|g" | star -xattr -H=exustar -c list=- -f -
else
cpio --null --quiet -o
fi
) |
gzip -c |
split -b2000m -d - $backupdir/$use_type)
}
# bootcdbackup.lib
# vim: set filetype=sh :
# function: run_cpiostar -- backup the partition and split into files < 2GB
# (mkisofs restriction!)
# get: $n -- -d <dir> the "root" directory (optional)
# $n -- -u <cpio|star>
# $last -- backupdir (write backup to this directory)
# need: RCPIO_EXCLUDE_DIRS -- exclude this files / directories
run_cpiostar()
{
local ext=""
local use_type="auto" # cpio or star
local dir=/
local selinux=""
local star=""
local interact=""
while [ $# -gt 1 ]; do
if [ "$1" = "-d" ]; then
dir=$2
shift 2
elif [ "$1" = "-u" ]; then
use_type=$2
shift 2
elif [ "$1" = "-i" ]; then
interact="$1"
shift
else
err "run_cpiostar: unknown argument: <$1>"
fi
done
local backupdir="$1"
shift
[ "$backupdir" ] || err "run_cpiostar argument missing"
if [ -f $dir/etc/selinux/config ]; then
if [ "$(cat "$dir/etc/selinux/config" | \
grep -e "^SELINUX=enforcing\>" \
-e "^SELINUX=permissive\>")" ]
then
selinux="1"
fi
fi
if [ -f /bin/star ]; then
star="/bin/star"
elif [ -f /usr/bin/star ]; then
star="/usr/bin/star"
fi
local TODO="" mm=0
local IAHEAD="$IAHEAD / run_cpiostar"
if [ "$use_type" = "star" ]; then
if [ ! "$star" ]; then
err "star is forced, but not installed"
fi
elif [ "$use_type" = "cpio" ]; then
if [ "$selinux" ]; then
warn "selinux is active; cpio is forced; using cpio; loosing infos"
fi
elif [ "$use_type" = "auto" ]; then
use_type="cpio"
if [ "$selinux" ]; then
if [ "$star" ]; then
use_type="star"
else
warn "selinux is active; star not installed; using cpio; loosing infos"
fi
fi
else
err "use_type=<$use_type> not known"
fi
for i in $RCPIO_EXCLUDE_DIRS ; do
[ "$ext" ] && ext="$ext; s|\x00.${i}[^\x00]*||g" || ext="s|\x00${i}[^\x00]*||g"
done
let mm=$mm+1; eval local IGNORE${mm}=\"\"; eval local STDOUT${mm}=\"\"
in_stdout $mm "^backup to .*"
in_ignore $mm "^find: WARNING: Hard link count is wrong for ./proc: .*"
in_stdout $mm "Permission denied$"
in_stdout $mm "^find: \./proc/.*"
in_stdout $mm "^cpio.*truncating inode number"
in_stdout $mm "^star: .* unsupported file type 'socket'. Not dumped."
in_stdout $mm "^star: .* blocks + .* bytes (total of .* bytes =.*)"
in_stdout $mm "^star: Missing links .*, Name too long .*, File too big .*, Not dumped .*"
in_stdout $mm "^star: Processed all possible files, despite earlier errors."
TODO="$TODO \"run_cpiostar_kern $use_type\""
[ "$interact" ] && interact="" || interact="-y"
eval "interactive -h \"=== \$IAHEAD ===\" $interact -r $TODO"
}
#. /usr/share/bootcd/bootcd-run.lib
#RCPIO_EXCLUDE_DIRS=""
#IAHEAD="main"
#f=/tmp/run_cpiostar; rm -rf $f; mkdir -p $f/t; touch $f/t/"a a"
#run_cpiostar -i -d $f/t $f
#[ -f $f/cpio00 ] && (cat $f/cpio* |gzip -d -c | cpio -it )
#[ -f $f/star00 ] && (cat $f/star* |gzip -d -c | star -xattr -t -f - )
#run_cpiostar -d $f/t -u cpio $f
#[ -f $f/cpio00 ] && (cat $f/cpio* |gzip -d -c | cpio -it )
#[ -f $f/star00 ] && (cat $f/star* |gzip -d -c | star -xattr -t -f - )
#run_cpiostar -d $f/t -u star $f
#[ -f $f/cpio00 ] && (cat $f/cpio* |gzip -d -c | cpio -it )
#[ -f $f/star00 ] && (cat $f/star* |gzip -d -c | star -xattr -t -f - )
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