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Message-ID: <5489D67D.4060104@t-online.de>
Date: Thu, 11 Dec 2014 18:38:05 +0100
From: Christian Franke <Christian DOT Franke AT t-online DOT de>
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To: cygwin AT cygwin DOT com
Subject: Re: fdisk -l is mute
References: <9D9AC45310887B40A7245734E850FBE11192AEE0 AT FS-MX02 DOT frontier DOT local> <5488BD32 DOT 9090502 AT t-online DOT de> <20141211102335 DOT GC3810 AT calimero DOT vinschen DOT de>
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Corinna Vinschen wrote:
> On Dec 10 22:37, Christian Franke wrote:
>> Fergus Daly wrote:
>>> If util-linux is installed then
>>> $ /usr/sbin/fdisk
>>> returns a list of options as expected; but choosing one of them
>>> $ /usr/sbin/fdisk -l
>>> is mute.
>>> In the past this has returned filesystem summaries as expected.
>>> Windows 7, all up to date.
>>> Anybody else?
>> Could reproduce this.
>>
>> The option -l still works if a device is specified:
>>
>> # fdisk -l /dev/sdX
>> ...
>> Disk /dev/sda: 1.8 TiB, ...
>>
>> Is this probably because the format of /proc/partitions has changed due to
>> the new (& useful!) win-mounts column?
> The win-mount column is empty for disk entries, only filled for
> partitions.  In theory that shouldn't bother fdisk which only looks
> for disk entries.  Or, does it?
>
>

It doesn't.

A quick look in the source shows that the function 
sysfs_devname_to_devno() now only checks the path /sys/block/sdX/dev if 
the device name does not start with /dev/. I presume upstream has 
removed a fallback to /dev/sdX because this is no longer required on Linux.

Christian


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