33 lines
762 B
Bash
Executable File
33 lines
762 B
Bash
Executable File
#!/bin/bash
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NAME=${DEVNAME#/dev/}
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DESC="${ID_MODEL} (${ID_FS_LABEL})"
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SIZE=$[ $(cat /sys/$DEVPATH/size) * 512 ]
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MODE=w
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XS_KEY="qubes-block-devices/$NAME"
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# Ignore mounted...
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if fgrep -q $DEVNAME /proc/mounts; then
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xenstore-rm "$XS_KEY"
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exit 0
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fi
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# ... and used by device-mapper
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if [ -n "`ls -A /sys/$DEVPATH/holders 2> /dev/null`" ]; then
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xenstore-rm "$XS_KEY"
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exit 0
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fi
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# Special case for CD
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if [ "$ID_TYPE" = "cd" ]; then
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if [ "$ID_CDROM_MEDIA" != "1" ]; then
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# Hide empty cdrom drive
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xenstore-rm "$XS_KEY"
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exit 0
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fi
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MODE=r
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fi
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xenstore-write "$XS_KEY/desc" "$DESC" "$XS_KEY/size" "$SIZE" "$XS_KEY/mode" "$MODE"
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# Make sure that block backend is loaded
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modprobe xen-blkback 2> /dev/null || modprobe blkbk
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