As a matter of fact it *does* prevent the creation of more than 11 md devices
but as far as I can see this is a bug, not a feature.
In the file lib/md-base.sh:
# Find the next available MD device number
md_next_device_number () {
local md_num="$(grep ^md /proc/mdstat | \
sed -e 's/^md\(.*\) : active .*/\1/' | sort | tail -n1)"
if [ -z "$md_num" ]; then
md_num=0
else
md_num="$(($md_num + 1))"
fi
echo "$md_num"
}
What does 'sort' do with 0 1 2 3 4 5 6 7 8 9 10? Well not what one might
expect: 0 1 10 2 3 4 5 6 7 8 9.
That means we get 9 even if md10 exists and return 10 as the next available
device number. So the installer will try to create md10 again. It should be
'sort -n' instead to handle this properly.
@Carsten: why should the limit for md devices be 10?
Regards,
Stefan
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