Groups > alt.os.linux.mageia > #20299

usb3 sticks do not seem to work properly.

From	William Unruh <unruh@invalid.ca>
Newsgroups	alt.os.linux.mageia, alt.os.linux
Subject	usb3 sticks do not seem to work properly.
Followup-To	alt.os.linux.mageia, alt.os.linux
Date	2019-02-11 16:42 +0000
Organization	A noiseless patient Spider
Message-ID	<q3s8lo$5f6$2@dont-email.me> (permalink)

Cross-posted to 2 groups.

Followups directed to: alt.os.linux.mageia, alt.os.linux

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I am trying to install Mageia onto usb sticks, both usb2 and usb3
sticks. 
I am installing by doing 
dd if=Mageia-7-cauldron-x86_64.iso of=/dev/sdb bs=1M status=progress
and both usb2 and usb3 take a long time to install. Both start of fast,
but finally settle down to 10MB/s writing, so the writing takes almost
an hour. I thought usb3 was supposed to be fast. This is the same on my
laptop  (which has usb3 ports and MGA6) and the new desktop( Ubuntu 18). 
The big problem is that when I want to check tha tthe writing has
worked, I do 
md5sum /dev/sda
and it takes about 1/2 hour to check the 4GB content of the stick, and
persistantly, whether I used usb2 or usb4 sticks, the check sum is NOT
the same as original file.  The sticks all have plenty of room ( they
are either 16 or 32GB sticks) Furthermore the checksum changes if I run
md5sum again on the same stick with nothing done to it.
I might suspect a bad usb stick, but this has now been
true for four different sticks, two usb3 and two usb2. I once got the
correct checksum, but after 9 tries that was the only one. This is a bit
absurd. What in the world could be going on here? Am I doing something
wrong?

Why is it taking so long to write to usb 3 sticks.
Why is the checksum persistantly wrong and changing on successive checks
on the same stick?

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Thread

usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-11 16:42 +0000
  Re: usb3 sticks do not seem to work properly. Mike Easter <MikeE@ster.invalid> - 2019-02-11 08:56 -0800
  Re: usb3 sticks do not seem to work properly. Richard Kettlewell <invalid@invalid.invalid> - 2019-02-11 18:50 +0000
    Re: usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-11 22:45 +0000
      Re: usb3 sticks do not seem to work properly. Jasen Betts <jasen@xnet.co.nz> - 2019-02-12 01:59 +0000
      Re: usb3 sticks do not seem to work properly. Richard Kettlewell <invalid@invalid.invalid> - 2019-02-12 08:45 +0000
        Re: usb3 sticks do not seem to work properly. Paul <nospam@needed.invalid> - 2019-02-12 05:50 -0500
        Re: usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-12 16:03 +0000
          Re: usb3 sticks do not seem to work properly. Bit Twister <BitTwister@mouse-potato.com> - 2019-02-12 10:20 -0600
            Re: usb3 sticks do not seem to work properly. "Carlos E.R." <robin_listas@es.invalid> - 2019-02-12 18:03 +0100
            Re: usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-12 17:17 +0000
          Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-12 13:56 -0500
            Re: usb3 sticks do not seem to work properly. Richard Kettlewell <invalid@invalid.invalid> - 2019-02-12 19:18 +0000
              Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-12 14:59 -0500
          Re: usb3 sticks do not seem to work properly. Richard Kettlewell <invalid@invalid.invalid> - 2019-02-12 19:15 +0000
  Re: usb3 sticks do not seem to work properly. Wes Newell <w.newell@tx.rr.com> - 2019-02-11 20:27 +0000
  Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-11 15:32 -0500
    Re: usb3 sticks do not seem to work properly. faeychild <faeychild@afraid.org> - 2019-02-12 08:32 +1100
    Re: usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-11 22:49 +0000
      Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-11 21:49 -0500
        Re: usb3 sticks do not seem to work properly. Paul <nospam@needed.invalid> - 2019-02-11 22:15 -0500
    Re: usb3 sticks do not seem to work properly. Jasen Betts <jasen@xnet.co.nz> - 2019-02-12 02:03 +0000
      Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-11 22:15 -0500
        Re: usb3 sticks do not seem to work properly. "Carlos E.R." <robin_listas@es.invalid> - 2019-02-12 05:22 +0100
  Re: usb3 sticks do not seem to work properly. "Carlos E. R." <robin_listas@es.invalid> - 2019-02-11 22:28 +0100
  Re: usb3 sticks do not seem to work properly. Paul <nospam@needed.invalid> - 2019-02-11 18:52 -0500
    Re: usb3 sticks do not seem to work properly. ant@zimage.comANT (Ant) - 2019-02-11 21:47 -0600
      Re: usb3 sticks do not seem to work properly. William Unruh <unruh@invalid.ca> - 2019-02-12 04:22 +0000
        Re: usb3 sticks do not seem to work properly. "Carlos E. R." <robin_listas@es.invalid> - 2019-02-12 21:40 +0100
      Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-11 23:29 -0500
        Re: usb3 sticks do not seem to work properly. Doug Laidlaw <laidlaws@hotkey.net.au> - 2019-02-13 06:40 +1100
          Re: usb3 sticks do not seem to work properly. Doug Laidlaw <laidlaws@hotkey.net.au> - 2019-02-14 03:01 +1100
            Re: usb3 sticks do not seem to work properly. "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2019-02-13 23:24 -0500
  Re: usb3 sticks do not seem to work properly. Jasen Betts <jasen@xnet.co.nz> - 2019-02-12 01:50 +0000

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