From: Christian Franke <Christian.Franke@t-online.de>
To: The Cygwin Mailing List <cygwin@cygwin.com>
Subject: Re: Smartctl issues in Cygwin with elevated terminal
Date: Tue, 13 Sep 2022 19:23:48 +0200 [thread overview]
Message-ID: <d5922237-d5ee-e82f-f35e-4fad284c7fb5@t-online.de> (raw)
In-Reply-To: <228fb395-f742-5d99-d108-f3394129d97e@hamishmb.com>
Hamish McIntyre-Bhatty wrote:
> I recently noticed that smartctl only works when the Cygwin Terminal
> isn't run as administrator - the opposite way round to Linux where you
> need superuser privileges to access the disk.
>
> With Administrator privileges on Windows 11, I get:
>
> "Read Device Identity Failure Input/Output error"
This likely happens because one of the tried pass-through I/O-controls
returns an error code which does not mean "not implemented". This is a
limitation or bug in the driver of the disk controller.
For further diagnostics, try for example. 'smartctl -r ioctl,2 -i /dev/sda'
>
> But it continues to work fine as a normal user.
When run without admin rights for a SATA device, smarctl may print:
"Warning: Limited functionality due to missing admin rights"
and then prints only limited device identify and SMART DATA information
returned by IOCTL_STORAGE_QUERY_PROPERTY and IOCTL_STORAGE_PREDICT_FAILURE.
Other functionality requires admin rights and a working pass-through
I/O-control - try 'smartctl -x /dev/sda'.
Please note that the above is not Cygwin specific as it applies to both
(Cygwin and Mingw-w64) Windows builds of smartctl. Use this ML for
related support requests:
https://listi.jpberlin.de/mailman/listinfo/smartmontools-support
>
> Does anyone know why? In my case, this actually matters because I'm
> not sure how to elevate and/or drop privileges in Cygwin, as sudo
> doesn't work due to it not being Unixy underneath.
To drop privileges, try 'cygdrop' tool from 'cygutils-extra' package.
--
Regards,
Christian
next prev parent reply other threads:[~2022-09-13 17:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-13 9:11 Hamish McIntyre-Bhatty
2022-09-13 11:46 ` Hamish McIntyre-Bhatty
2022-09-13 17:23 ` Christian Franke [this message]
2022-09-26 14:26 ` Hamish McIntyre-Bhatty
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