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set -x
# create an array, then change the uuid.
mdadm -CR --assume-clean $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
mdadm -S /dev/md0
# try v1 superblock
mdadm -CR --assume-clean -e1 $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
mdadm -S /dev/md0
# now if we have a bitmap, that needs updating too.
rm -f $targetdir/bitmap
yes | mdadm -CR --assume-clean -b $targetdir/bitmap $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 -b $targetdir/bitmap --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
if mdadm -X $targetdir/bitmap | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 ||
mdadm -X $targetdir/bitmap | grep -s > /dev/null 67452301:efcdab89:98badcfe:10325476
then : ; else
echo Wrong uuid; mdadm -X $targetdir/bitmap ; exit 2;
fi
mdadm -S /dev/md0
# and bitmap for version1
rm -f $targetdir/bitmap
yes | mdadm -CR --assume-clean -e1.1 -b $targetdir/bitmap $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 -b $targetdir/bitmap --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
# -X cannot tell which byteorder to use for the UUID, so allow both.
if mdadm -X $targetdir/bitmap | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 ||
mdadm -X $targetdir/bitmap | grep -s > /dev/null 67452301:efcdab89:98badcfe:10325476
then : ; else
echo Wrong uuid; mdadm -X $targetdir/bitmap ; exit 2;
fi
mdadm -S /dev/md0
# Internal bitmaps too.
mdadm -CR --assume-clean -b internal --bitmap-chunk 4 $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
mdadm -X $dev0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -X $dev0; exit 2;
}
mdadm -S /dev/md0
mdadm -CR --assume-clean -e1.2 -b internal --bitmap-chunk=4 $md0 -l5 -n3 $dev0 $dev1 $dev2
mdadm -S /dev/md0
mdadm -A /dev/md0 --update=uuid --uuid=0123456789abcdef:fedcba9876543210 $dev0 $dev1 $dev2
no_errors
mdadm -D /dev/md0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -D /dev/md0 ; exit 2;
}
mdadm -X $dev0 | grep -s > /dev/null 01234567:89abcdef:fedcba98:76543210 || {
echo Wrong uuid; mdadm -X $dev0; exit 2;
}
mdadm -S /dev/md0
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