Re: udev applied to SDHC card. Two systems compared.

From	David Wright <deblis@lionunicorn.co.uk>
Newsgroups	linux.debian.user
Subject	Re: udev applied to SDHC card. Two systems compared.
Date	2022-01-03 05:30 +0100
Message-ID	<DBn8R-3J9-1@gated-at.bofh.it> (permalink)
References	<DyR3r-1Xz-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Sun 26 Dec 2021 at 21:32:20 (-0800), peter@easthope.ca wrote:
> Any ideas about why udev assigns a symlink on the desktop system and 
> not on the Sharp Mebius laptop?

Because the slots you're pushing them into are of a different type.

> Desktop machine.

> Pertinent lines in /etc/udev/rules.d/10-local.rules.
> # The green Nexttech SDHC card.
> KERNEL=="sd?1", ATTR{size}=="7434240", SYMLINK+="GRNSD", \
>  OWNER="peter", GROUP="users"

And you will find your partition named something like /dev/sdb1.

> peter@joule:/home/peter$ ls /dev/G*
> /dev/GRNSD
> 
> Laptop machine.

> Pertinent lines in /etc/udev/rules.d/10-local.rules.
> # The green Nexttech SDHC card.
> KERNEL=="sd?1", ATTR{size}=="7434240", SYMLINK+="GRNSD", \
>  OWNER="peter", GROUP="users"

Here, you'll probably find your partition named something like
/dev/mmcblk0p1, which does not match "sd?1".

> peter@mebius:/home/peter$ ls /dev/G*
> ls cannot access 'dev/G*': No such file or directory

See also my post about SD cards' IDs in the two cases:

https://lists.debian.org/debian-user/2022/01/msg00038.html

Cheers,
David.

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Thread

udev applied to SDHC card.  Two systems compared. peter@easthope.ca - 2021-12-27 06:50 +0100
  Re: udev applied to SDHC card. Two systems compared. "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-27 18:40 +0100
    Re: udev applied to SDHC card. Two systems compared. peter@easthope.ca - 2021-12-28 22:40 +0100
      Re: udev applied to SDHC card. Two systems compared. "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-29 00:10 +0100
        Re: udev applied to SDHC card. Two systems compared. peter@easthope.ca - 2021-12-29 20:30 +0100
  Re: udev applied to SDHC card.  Two systems compared. David Wright <deblis@lionunicorn.co.uk> - 2022-01-03 05:30 +0100

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