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N900 is not recognizable on any of my devices (windows 10,7, xp) What can I do? (1)
to Nokia N900 by nieldk - 4 days, 10 hrs ago - more...
jschan |
2011-09-01
, 09:46
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Posts: 166 |
Thanked: 74 times |
Joined on May 2010
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#31
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Not sure if it's the same since I don't have an a 32gb class 10 card, but have you checked out the Fix for Class 10 microSD cards thread?
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2011-09-01
, 16:00
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Posts: 561 |
Thanked: 75 times |
Joined on Jan 2010
@ Spain
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#32
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is not an issue of the card is to use "/ dev / null"
To write and read it I had no problems.
To write and read it I had no problems.
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2011-09-01
, 20:56
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Posts: 256 |
Thanked: 92 times |
Joined on Oct 2010
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#33
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Originally Posted by WhiteWolf
what are you doing with /dev/null anyways? messuring the speed of /dev/null/ ?
is not an issue of the card is to use "/ dev / null"
To write and read it I had no problems.
further: no problems reading from /dev/null ? you didn't ("Reads from /dev/null shall always return end-of-file ")! so what did you do?
Last edited by lunat; 2011-09-01 at 21:03.
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2011-09-02
, 12:04
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Posts: 87 |
Thanked: 46 times |
Joined on Nov 2010
@ lisbon, portugal
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#34
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3 Consecutive runs of 100MB test script.
Lenco 16GB class 6
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 10.2354 MB/s
Write: 12.4069 MB/s
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 6.77507 MB/s
Write: 20.7469 MB/s
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 7.08215 MB/s
Write: 21.978 MB/s
EDIT: New Test with 1GB test file
testing SD Card read/write speed. Please wait a few minutes.
Testing WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 12.221 MB/s
Write: 3.12109 MB/s
Conclusion:Unconclusive
Last edited by trlopes1974; 2011-09-02 at 13:26. Reason: new test
Lenco 16GB class 6
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 10.2354 MB/s
Write: 12.4069 MB/s
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 6.77507 MB/s
Write: 20.7469 MB/s
Nokia-N900:/home/user# ./testsd.sh
testing SD Card read/write speed. Please wait a few minutes.
Testing _WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 7.08215 MB/s
Write: 21.978 MB/s
EDIT: New Test with 1GB test file
testing SD Card read/write speed. Please wait a few minutes.
Testing WRITE SPEED
Testing READ SPEED
Deleting test file
Result
Read: 12.221 MB/s
Write: 3.12109 MB/s
Conclusion:Unconclusive
Last edited by trlopes1974; 2011-09-02 at 13:26. Reason: new test
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2011-09-02
, 12:19
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Posts: 561 |
Thanked: 75 times |
Joined on Jan 2010
@ Spain
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#35
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The line of script that checks from the card reading done:
"time -p cp / media/mmc1/test.dat /dev/null"
The virtual device "/dev/null" is a black hole. Where not to save anything, is used to simulate the copy from one point to another point.
In my device returns the following message:
"cp: can create ' dev/null ' : File exists"
in my GNU/Linux the script works perfectly.
"time -p cp / media/mmc1/test.dat /dev/null"
The virtual device "/dev/null" is a black hole. Where not to save anything, is used to simulate the copy from one point to another point.
In my device returns the following message:
"cp: can create ' dev/null ' : File exists"
in my GNU/Linux the script works perfectly.
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2011-09-02
, 13:41
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Posts: 561 |
Thanked: 75 times |
Joined on Jan 2010
@ Spain
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#36
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I have tried to re-create "/ dev / null".
# Sudo gainroot
# Mv / dev / null / dev / null.old
# Mknod-m 0666 / dev / null c 1 3
The result is that in writing ...
# Ls -l /dev/null
It shows that ceased to occupy 9MB, but still displays the same error messages when using "/dev/null"
# Sudo gainroot
# Mv / dev / null / dev / null.old
# Mknod-m 0666 / dev / null c 1 3
The result is that in writing ...
# Ls -l /dev/null
It shows that ceased to occupy 9MB, but still displays the same error messages when using "/dev/null"
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2011-10-04
, 11:59
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Posts: 561 |
Thanked: 75 times |
Joined on Jan 2010
@ Spain
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#37
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Fixed. It allows the use of "/dev/null" as the destination for the command "cp".
I've solved it using "dd" to replace cpmando "cp".
I put the example:
dd if=$DAT of=/dev/null bs=1M 2>&1|head -1
I've solved it using "dd" to replace cpmando "cp".
I put the example:
dd if=$DAT of=/dev/null bs=1M 2>&1|head -1