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February 2012

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Subject:
From:
"Stephen J. Gowdy" <[log in to unmask]>
Reply To:
Stephen J. Gowdy
Date:
Thu, 2 Feb 2012 18:32:01 +0100
Content-Type:
TEXT/PLAIN
Parts/Attachments:
TEXT/PLAIN (226 lines)
Hi Andrey,
 	Why would you want a block size in GB? I don't know what the 
actual limit for dd itself is, although it does seem to be exactly 2GiB.

 						regards,

 						Stephen.

On Thu, 2 Feb 2012, Andrey Y. Shevel wrote:

>
> Hi Stephen,
>
> thank you for your reply.
>
> ======
> [root@pcfarm-10 ~]# rpm -qa --queryformat "%{NAME}-%{VERSION}.%{ARCH}\n" | 
> grep coreutils
> policycoreutils-1.33.12.x86_64
> policycoreutils-newrole-1.33.12.x86_64
> coreutils-5.97.x86_64
> policycoreutils-gui-1.33.12.x86_64
> =====
>
> And obviously
>
> ================
> [root@pcfarm-10 ~]# arch
> x86_64
> ===============
>
>
> The result is prety same as I shown earlier.
>
> And the same I see at CERN
>
> =======================
> [lxplus427] /afs/cern.ch/user/s/shevel > dd if=/dev/zero of=/tmp/testx64 
> bs=3GB count=1
> 0+1 records in
> 0+1 records out
> 2147479552 bytes (2.1 GB) copied, 5.91242 seconds, 363 MB/s
> [lxplus427] /afs/cern.ch/user/s/shevel > rpm -q --file /bin/dd
> coreutils-5.97-34.el5
> [lxplus427] /afs/cern.ch/user/s/shevel >  rpm -qa --queryformat 
> "%{NAME}-%{VERSION}.%{ARCH}\n" | grep coreutil
> policycoreutils-1.33.12.x86_64
> coreutils-5.97.x86_64
> policycoreutils-gui-1.33.12.x86_64
> ===========================
>
>
>
>
>
> As far as I understand the main question is "is there 64 bit dd version which 
> can operate more then 2GB value for BS in SL anyway?"
>
> Any answer (yes or no) is good to know.
>
> Many thanks,
>
> Andrey
>
>
> On Wed, 1 Feb 2012, Stephen J. Gowdy wrote:
>
>> Date: Wed, 1 Feb 2012 19:10:14 +0100 (CET)
>> From: Stephen J. Gowdy <[log in to unmask]>
>> To: Andrey Y. Shevel <[log in to unmask]>
>> Cc: [log in to unmask]
>> Subject: Re: coreutils for 64 bit
>> 
>> Exactly.... if you type "man rpm" it will show you how you get it to print 
>> the arch string (usually i686 or x86_64). Since you seem unabel to read a 
>> man page what you want to type is;
>> 
>> rpm -qa --queryformat "%{NAME}-%{VERSION}.%{ARCH}\n" | grep coreutils
>> 
>> (or miss out the VERSION if you want to see somethign similar to yum)
>> 
>> On Wed, 1 Feb 2012, Andrey Y. Shevel wrote:
>> 
>>>
>>>  Hi Stephen,
>>>
>>>  thanks for the reply.
>>>
>>>  I am not sure that I do understand you (sorry for my stupidity).
>>>
>>>  I have
>>>  =======================================
>>>  [root@pcfarm-10 ~]# yum list | grep coreutil
>>>  Failed to set locale, defaulting to C
>>>  coreutils.x86_64                         5.97-34.el5 installed
>>>  policycoreutils.x86_64                   1.33.12-14.8.el5 installed
>>>  policycoreutils-gui.x86_64               1.33.12-14.8.el5 installed
>>>  policycoreutils-newrole.x86_64           1.33.12-14.8.el5 installed
>>>  [root@pcfarm-10 ~]# rpm -q --file /bin/dd
>>>  coreutils-5.97-34.el5
>>>  =============================================
>>>
>>>  Presumably all packages are appropriate (they have suffix x86_64) as 
>>> shown
>>>  by yum.
>>>
>>>  At the same time rpm does show packages without above suffixes
>>>
>>>  =========================
>>>  [root@pcfarm-10 ~]# rpm -qa | grep coreutil
>>>  policycoreutils-1.33.12-14.8.el5
>>>  policycoreutils-newrole-1.33.12-14.8.el5
>>>  coreutils-5.97-34.el5
>>>  policycoreutils-gui-1.33.12-14.8.el5
>>>  =========================
>>> 
>>> 
>>> 
>>>
>>>  On Wed, 1 Feb 2012, Stephen J. Gowdy wrote:
>>> 
>>> >  Date: Wed, 1 Feb 2012 11:32:40 +0100 (CET)
>>> >  From: Stephen J. Gowdy <[log in to unmask]>
>>> >  To: Andrey Y Shevel <[log in to unmask]>
>>> >  Cc: [log in to unmask]
>>> >  Subject: Re: coreutils for 64 bit
>>> > >  It says it only copied 2.1GB. You are runnig a 64bit OS. You 
>>> reinstalld >  the same coreutils package. You need to change the format of 
>>> the package >  names from "rpm -qa" if you want to see the architecture 
>>> ("man rpm" >  should help you figure out how).
>>> > >  On Wed, 1 Feb 2012, Andrey Y Shevel wrote:
>>> > > >   Hi,
>>> > > > >   I just paid attention that utility 'dd' uses just 2 GB even I 
>>> use > >   greater
>>> > >   block size (BS). For example
>>> > > > >   =====
>>> > >   [root@pcfarm-10 ~]# dd if=/dev/zero of=/mnt/sdb/TestFile-S1 bs=12GB
>>> > >   count=1
>>> > >   0+1 records in
>>> > >   0+1 records out
>>> > >   2147479552 bytes (2.1 GB) copied, 15.8235 seconds, 136 MB/s
>>> > >   ============
>>> > > > >   BTW,
>>> > > > >   [root@pcfarm-10 ~]# uname -a
>>> > >   Linux pcfarm-10.pnpi.spb.ru 2.6.18-274.17.1.el5xen #1 SMP Tue Jan 10
>>> > >   16:41:16 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
>>> > >   [root@pcfarm-10 ~]# cat /etc/issue
>>> > >   Scientific Linux SL release 5.7 (Boron)
>>> > >   Kernel \r on an \m
>>> > > > > > > > > > >   I decided to reinstall coreutils:
>>> > > > >   [root@pcfarm-10 ~]# yum reinstall coreutils.x86_64
>>> > >   Failed to set locale, defaulting to C
>>> > >   Loaded plugins: kernel-module
>>> > >   Setting up Reinstall Process
>>> > >   Resolving Dependencies
>>> > >   --> Running transaction check
>>> > >   ---> Package coreutils.x86_64 0:5.97-34.el5 set to be updated
>>> > >   --> Finished Dependency Resolution
>>> > >   Beginning Kernel Module Plugin
>>> > >   Finished Kernel Module Plugin
>>> > > > >   Dependencies Resolved
>>> > > > > 
>>> ===========================================================================================
>>> > >   Package              Arch              Version
>>> > >   Repository
>>> > >           Size
>>> > > 
>>> ===========================================================================================
>>> > >   Reinstalling:
>>> > >   coreutils            x86_64            5.97-34.el5 > >   sl-base
>>> > >           3.6 M
>>> > > > >   Transaction Summary
>>> > > 
>>> ===========================================================================================
>>> > >   Remove        0 Package(s)
>>> > >   Reinstall     1 Package(s)
>>> > >   Downgrade     0 Package(s)
>>> > > > >   Total download size: 3.6 M
>>> > >   Is this ok [y/N]: y
>>> > >   Downloading Packages:
>>> > >   coreutils-5.97-34.el5.x86_64.rpm 
>>> | > >   3.6
>>> > >   MB
>>> > >      00:05
>>> > >   Running rpm_check_debug
>>> > >   Running Transaction Test
>>> > >   Finished Transaction Test
>>> > >   Transaction Test Succeeded
>>> > >   Running Transaction
>>> > >    Installing     : coreutils
>>> > >             1/1
>>> > > > >   Installed:
>>> > >    coreutils.x86_64 0:5.97-34.el5
>>> > > > > > >   Complete!
>>> > >   =========================
>>> > > > >   However after that I see
>>> > > > > > >   [root@pcfarm-10 ~]# ls -l /bin/dd
>>> > >   -rwxr-xr-x 1 root root 41464 Jul 26  2011 /bin/dd
>>> > >   [root@pcfarm-10 ~]# rpm -q --file /bin/dd
>>> > >   coreutils-5.97-34.el5
>>> > > > > > >   [root@pcfarm-10 ~]# rpm -qa | grep coreutils
>>> > >   policycoreutils-1.33.12-14.8.el5
>>> > >   policycoreutils-newrole-1.33.12-14.8.el5
>>> > >   coreutils-5.97-34.el5
>>> > >   policycoreutils-gui-1.33.12-14.8.el5
>>> > > > > > >   i.e. no package with name coreutils.x86_64
>>> > > > >   I failed to find anything on the topic in scientific linux 
>>> mailing > >   list.
>>> > > > >   Does somebody know about dd for 64 bit ?
>>> > > > >   Many thanks in advance,
>>> > > > >   Andrey
>>> > > > > 
>>> 
>> 
>> 
>
>

-- 
  /------------------------------------+-------------------------\
|Stephen J. Gowdy                     | CERN       Office: 8-1-11|
|http://cern.ch/gowdy/                | CH-1211 Geneva 23        |
|                                     | Switzerland              |
|EMail: [log in to unmask]                 | Tel: +41 76 487 2215     |
  \------------------------------------+-------------------------/

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