Disk partition structure

Question

Is there any way in Java (1.6+) to retrieve the partition disk structure? (For example: NTFS, FAT32, HFS+, or EXT3.)

External libraries are permitted.

Thanks,
Gianni

Do you mean partition table of the hard disk (like in the question)? Or the programmatic access to file system information (like the abbr. in parantheses suggest)? — Grzegorz Oledzki, Jan 25 '10 at 20:17
Yes, something like `String value = MySystem.getPartitionStructure();` and on Mac OS X the string `value` would be `HFS+`. — Gianni, Jan 26 '10 at 14:39

score 1 · Answer 1 · edited Jun 26 '17 at 07:54

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You could use Runtime.getRuntime().exec() to execute a command like sfdisk and then parse the output.

sfdisk -l /dev/hdc

Unfortunately, it isn't very platform independent.

edited Jun 26 '17 at 07:54

Pang

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answered Jan 25 '10 at 20:14

Nate Heinrich

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Well, I was thinking of writing a class that would execute system dependent commands and extract the information I need from it. But I don't want to reinvent the wheel, you see. If there is a Java library that could do it for me, I don't need to code it myself. Thanks. – Gianni Jan 26 '10 at 14:44

score 1 · Answer 2 · answered Jan 25 '10 at 20:18

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Under OS X the output of "mount" includes the file system:

ravn:~ ravn$ mount
/dev/disk0s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)

Here / is of type hfs

answered Jan 25 '10 at 20:18

Thorbjørn Ravn Andersen

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Well, I was thinking of writing a class that would execute system dependent commands and extract the information I need from it. But I don't want to reinvent the wheel, you see. If there is a Java library that could do it for me, I don't need to code it myself. Thanks. – Gianni Jan 26 '10 at 14:45
Apparently nobody needs it. Why do you? – Thorbjørn Ravn Andersen Jan 26 '10 at 21:04
I'm writing a program and it needs the disk structure. Like I've said above, I've already started writing my own library. – Gianni Jan 27 '10 at 11:14
Please be specific. _WHY_ does it need to know the disk structure? – Thorbjørn Ravn Andersen Jan 27 '10 at 11:35
That has nothing to do with my question. The point is I need to print the disk structure. My Java app doesn't need to know it, the user needs it. – Gianni Jan 27 '10 at 15:13
Then showing the user the complete output from "mount " on Unix is probably the best, as this ensures that your library assumes as little as possible about the actual output format which varies between systems. Have fun. – Thorbjørn Ravn Andersen Jan 27 '10 at 16:21
I think so. I'm writing my own library right now. It is already working on unix, mac and linux. – Gianni Jan 28 '10 at 11:49

score 1 · Answer 3 · edited May 23 '17 at 12:11

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If this doesn't help then - no. You'll need a native library and some OS dependent code for it.

edited May 23 '17 at 12:11

Community

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answered Jan 25 '10 at 20:18

Andreas Dolk

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Thank you for the answer. But I don't like the technique described in that thread. – Gianni Jan 26 '10 at 14:39

Disk partition structure

3 Answers3