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53 lines
1.2 KiB
53 lines
1.2 KiB
#!/bin/sh |
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_remove_dm() { |
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local dev=$1 |
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local s |
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local devname |
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for s in /sys/block/${dev}/holders/dm-*; do |
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[ -e ${s} ] || continue |
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_remove_dm ${s##*/} |
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done |
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# multipath devices might have MD devices on top, |
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# which are removed after this script. So do not |
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# remove those to avoid spurious errors |
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case $(cat /sys/block/${dev}/dm/uuid) in |
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mpath-*) |
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return 0 |
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;; |
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*) |
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devname=$(cat /sys/block/${dev}/dm/name) |
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dmsetup -v --noudevsync remove "$devname" || return $? |
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;; |
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esac |
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return 0 |
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} |
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_do_dm_shutdown() { |
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local ret=0 |
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local final=$1 |
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local dev |
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info "Disassembling device-mapper devices" |
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for dev in /sys/block/dm-*; do |
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[ -e ${dev} ] || continue |
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if [ "x$final" != "x" ]; then |
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_remove_dm ${dev##*/} || ret=$? |
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else |
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_remove_dm ${dev##*/} > /dev/null 2>&1 || ret=$? |
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fi |
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done |
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if [ "x$final" != "x" ]; then |
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info "dmsetup ls --tree" |
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dmsetup ls --tree 2>&1 | vinfo |
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fi |
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return $ret |
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} |
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if command -v dmsetup > /dev/null \ |
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&& [ "x$(dmsetup status)" != "xNo devices found" ]; then |
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_do_dm_shutdown $1 |
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else |
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: |
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fi
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