72 lines
2.0 KiB
Bash
Executable File
72 lines
2.0 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2012 Steven Armstrong (steven-cdist at armstrong.cc)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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disk="/$__object_id"
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disk_name="${disk##*/}"
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cat << DONE
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debug() {
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echo "[DEBUG] \$@" >&2
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}
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find_md_device_names() {
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local disk_name="\$1"
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for slave in \$(find /sys/devices/virtual/block/*/slaves/ -name "\${disk_name}*"); do
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debug "slave: \$slave"
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for holder in \$slave/holders/*; do
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debug "holder: \$holder"
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if [ -d "\$holder/md" ]; then
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debug "mdadm found at \$holder"
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holder_name="\${holder##*/}"
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echo "\$holder_name"
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fi
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done
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done
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}
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# disable any enabled volume group
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if command -v vgchange >/dev/null; then
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vgchange -a n
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else
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echo "WARNING: vgchange command not found" >&2
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fi
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# disable any running mdadm arrays related to $disk
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for md_name in \$(find_md_device_names "$disk_name" | sort | uniq); do
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echo "md_name: \$md_name"
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if command -v mdadm >/dev/null; then
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mdadm --stop "/dev/\$md_name"
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else
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echo "WARNING: mdadm command not found" >&2
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echo "WARNING: could not stop active mdadm raid for disk $disk" >&2
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fi
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done
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# clean disks from any legacy signatures
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if command -v wipefs >/dev/null; then
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wipefs -a "$disk" || true
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fi
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# erase partition table
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dd if=/dev/zero of=$disk bs=512 count=1
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printf 'w\\n' | fdisk -u -c $disk || true
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DONE
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