Mailinglist Archive: opensuse-bugs (7823 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=463829

User teheo@xxxxxxxxxx added comment
https://bugzilla.novell.com/show_bug.cgi?id=463829#c50


Tejun Heo <teheo@xxxxxxxxxx> changed:

           What    |Removed                     |Added
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             Status|ASSIGNED                    |NEEDINFO
      Info Provider|                            |pgnet.trash@xxxxxxxxx




--- Comment #50 from Tejun Heo <teheo@xxxxxxxxxx>  2009-02-10 18:16:46 MST ---
Eh.. let's please leave out lvm, md or filesystem for now.  They just add to
complexity and if you keep the filesystem mounted over tests, it doesn't mean
much because the system caches file contents in memory.  Please do the
followings.

1. Boot kernel to test.  No fstab entry or raid array.
2. dd if=TESTSOURCEFILE of=TESTTMPFILE bs=1M count=512 # change count as
necessary
3. sha1sum TESTTMPFILE
4. dd if=TESTTMPFILE of=/dev/sdX bs=1M count=512
5. for ((i=0;i<3;i++)); do dd if=/dev/sdX of=TESTOUT bs=1M count=512; sha1sum
TESTOUT; done

Please make sure the device to test is not used by any FS before doing the
test.  The above test sequence will flush all the caches after each dd as
they'll be the last users.

Thanks.

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