From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: md5sum arguments
Date: Tue, 1 Jul 2014 21:14:47 +0400 [thread overview]
Message-ID: <20140701211447.9e543b8e172d37c32d630091@gmail.com> (raw)
Hi All!
Current 'md5sum' command gets FILE|AREA argument, e.g.
barebox:/ help md5sum
md5sum - calculate MD5 checksum
Usage: md5sum FILE|AREA...
Calculate a MD5 digest over a FILE or a memory area.
The *nix 'md5sum' gets [FILE]... argument.
This behavour can be misleading. E.g. today I have tryed this command sequence on
my qemu-malta machine:
barebox:/ memcpy -s /dev/zero -d 1M 0 0 0x100000
barebox:/ md5sum 1M
md5sum just hangs!
But this command sequence works fine:
barebox:/ memcpy -s /dev/zero -d zeros 0 0 0x100000
barebox:/ md5sum zeros
b6d81b360a5672d80c27430f39153e2c zeros 0x00000000 ... 0xffffffffffffffff
Do we really need this?
We can use 'addpart' on /dev/memory for creating partial memory device and run md5sum on it.
--
Best regards,
Antony Pavlov
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next reply other threads:[~2014-07-01 17:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-01 17:14 Antony Pavlov [this message]
2014-07-02 5:42 ` Sascha Hauer
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