No Samsung SSD found
when I use this command
samsung_magician_dc-v1.0_rtm_p2/64bin $ sudo ./magician -L
it tells me "No samsung SSD found".What shall I do?
I run ubuntu 14.04 and i got this on using sudo ./magician -l
For reasons that are not clear to me, Samsung have removed the Linux versions of Magician for "consumer" SSDs. However, it seems that the most recent version can still be accessed via the wonderful archive.org [1]. I was able to use this just now to upgrade the firmware on my 840 EVO 1TB -- the user manual says it supports the 850 drives too. [2]
[1] https://web.archive.org/web/20160304055322/http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/support/server_downloads.html
[2] https://web.archive.org/web/20160316165224/http://www.samsung.com/global/business/semiconductor/minisite/SSD/downloads/software/Samsung_Magician_DC_v10_User_Guide.pdf
It seems EVO 850 is not supportted. My one also gets blank list:
# ./magician -L
================================================================================================
Samsung(R) SSD Magician DC Version 1.0
Copyright (c) 2014 Samsung Corporation
================================================================================================
----------------------------------------------------------------------------
| Disk | Model | Serial | Firmware | Capacity | Drive | Total Bytes |
| Number | | Number | | | Health | Written |
----------------------------------------------------------------------------
No Samsung SSD found!
#
# hdparm -i /dev/sda
/dev/sda:
Model=Samsung SSD 850 EVO 500GB, FwRev=EMT01B6Q, SerialNo=S21GNXAG807106V
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=1, MultSect=1
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-2,3,4,5,6,7
* signifies the current active mode
#
From searching, I found there were some bad reputations on Samsung SSDs with Linux: - https://bugs.launchpad.net/ubuntu/+source/fstrim/+bug/1449005 - http://comments.gmane.org/gmane.linux.ide/59791
Better try to avoid updating the firmware if it is not really needed there.
You don't need Samsung Magician in Ubuntu 14.04. TRIM support is enabled automatically by default for Samsung SSDs in Ubuntu 14.04. You also don't need to update the SSD's firmware. Your Samsung SSD should be detected in the Disks disk utility in Ubuntu 14.04, and function properly without any additional maintenance being required.
Try using your Samsung SSD for a while without doing any additional maintenance on it, and then comment if any problem occurs.
Unfortunately EVO 850 is not supported in Samsung SSD Magician DC 1.0, you can find this information in the official documentation.