From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clifford Beshers Subject: Re: 2 Terabyte install Date: Wed, 12 May 2004 16:36:01 -0700 Message-ID: <40A2B4E1.6000804@lindows.com> References: <409AC2FF.7080800@lindows.com> <1083917932.14089.281.camel@tribesman.namesys.com> <409BB690.6030604@namesys.com> <409BBDC9.3030809@lindows.com> <409FB387.8080804@namesys.com> <40A19147.4010703@lindows.com> <20040512034150.GS9641@schnapps.adilger.int> <40A2B1D0.5040005@lindows.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------000705070808010203060306" Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <40A2B1D0.5040005@lindows.com> List-Id: To: Clifford Beshers Cc: Andreas Dilger , Reiserfs mail-list , Vitaly Fertman --------------000705070808010203060306 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Argh. It never fails. I found 'blkid' in package libblkid1 immediately after I sent this. Bad packaging by Debian. Anyway, it works as advertised. Thanks. Clifford Beshers wrote: > > Andreas Dilger wrote: > >>> * Is there a tool to determine the type of file system on a >>> partition without mounting it? >>> >>> >> >>Lots of them. "file -s /dev/foo" or if you have a newer e2fsprogs (1.33 >>and newer I think) you can use "blkid [dev ...]" to tell you a bunch of >>things about each device (LABEL, UUID, TYPE). >> >> >> >> > Very interesting. Unfotunately, my results don't match yours. > > First, I had tried 'file' and found that it didn't work. I tried it > again and found that it still didn't work. > > root@notsomarlin:~# losetup /dev/loop/0 /tmp/foo > root@notsomarlin:~# mke2fs /dev/loop/0 > ... > root@notsomarlin:~# file /tmp/foo > /tmp/foo: Linux rev 1.0 ext2 filesystem data > root@notsomarlin:~# mkreiserfs /dev/loop/0 > ... > ReiserFS is successfully created on /dev/loop/0. > root@notsomarlin:~# file /tmp/foo > /tmp/foo: data > > Do you get other results? If not, it would seem that Debian's version > of 'file' is broken, yet I checked the source code and there are magic > numbers for reiserfs included. > > Also, I check e2fsprogs and it is at version 1.35 in Debian unstable, > but no tool called 'blkid' is included. > > So I'm still searching for reliable methods to do this. --------------000705070808010203060306 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Argh. It never fails. I found 'blkid' in package libblkid1 immediately after I sent this. Bad packaging by Debian.

Anyway, it works as advertised. Thanks.

Clifford Beshers wrote:

Andreas Dilger wrote:
   * Is there a tool to determine the type of file system on a
     partition without mounting it?
    
Lots of them.  "file -s /dev/foo" or if you have a newer e2fsprogs (1.33
and newer I think) you can use "blkid [dev ...]" to tell you a bunch of
things about each device (LABEL, UUID, TYPE).


  
Very interesting. Unfotunately, my results don't match yours.

First, I had tried 'file' and found that it didn't work. I tried it again and found that it still didn't work.

root@notsomarlin:~# losetup /dev/loop/0 /tmp/foo
root@notsomarlin:~# mke2fs /dev/loop/0
...
root@notsomarlin:~# file /tmp/foo
/tmp/foo: Linux rev 1.0 ext2 filesystem data
root@notsomarlin:~# mkreiserfs /dev/loop/0
...
ReiserFS is successfully created on /dev/loop/0.
root@notsomarlin:~# file /tmp/foo
/tmp/foo: data

Do you get other results? If not, it would seem that Debian's version of 'file' is broken, yet I checked the source code and there are magic numbers for reiserfs included.

Also, I check e2fsprogs and it is at version 1.35 in Debian unstable, but no tool called 'blkid' is included.

So I'm still searching for reliable methods to do this.

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