* Re: [gentoo-user] [SOLVED] Balky mounting of external devices
@ 2011-10-23 11:07 99% ` Neil Bothwick
0 siblings, 0 replies; 1+ results
From: Neil Bothwick @ 2011-10-23 11:07 UTC (permalink / raw
To: gentoo-user
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On Sat, 22 Oct 2011 23:38:45 -0400, Walter Dnes wrote:
> On Sat, Oct 22, 2011 at 09:21:50PM +0100, Neil Bothwick wrote
>
> > This came up recently with a different subject. Your device does not
> > have a partition table, instead the filesystem occupies the whole
> > device (sometimes referred to as a "superfloppy" format). There's
> > nothing wrong with this, I have a couple of USB sticks like it, and
> > my Nexus S is the same.
> >
> > Your automounter should still pick it up.
>
> I don't use an automounter. I like to be in control of what gets
> mounted when.
Then use an intelligent automounter, that only mounts things you want it
to and lets you make choices about the rest :)
> Thanks for the explanation. With it in mind I've finally
> come up with a plan that works.
> In /etc/sudoers.d/001 I've included...
>
> waltdnes i3 = (root) NOPASSWD: /sbin/fdisk -l /dev/sdc
>
> And there's an entry for a vfat device in /etc/fstab for directory
> /mnt/extc. The command "/sbin/fdisk -l /dev/sdc" seems to read in the
> partition table into the system and things work from there on in. fdisk
> only works as root, hence the sudo command. Here's a sample session...
>
> ===================================================================
> waltdnes@i3 ~ $ mount /mnt/extc
> mount: special device /dev/sdc1 does not exist
> waltdnes@i3 ~ $ sudo /sbin/fdisk -l /dev/sdc
>
> Disk /dev/sdc: 16.0 GB, 16012804096 bytes
> 256 heads, 63 sectors/track, 1939 cylinders, total 31275008 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>
> Device Boot Start End Blocks Id System
> /dev/sdc1 * 2048 31275007 15636480 c W95 FAT32 (LBA)
> waltdnes@i3 ~ $ mount /mnt/extc
> waltdnes@i3 ~ $
> ===================================================================
In that case, you have a different situation since there is clearly a
partition on the disk. The partition table may be slightly faulty, hence
the need for fdisk. Recreating the partition table with fdisk should fix
that permanently.
--
Neil Bothwick
Those who live by the sword get shot by those who don't.
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2011-10-22 0:03 [gentoo-user] Balky mounting of external devices Walter Dnes
2011-10-22 20:21 ` Neil Bothwick
2011-10-23 3:38 ` [gentoo-user] [SOLVED] " Walter Dnes
2011-10-23 11:07 99% ` Neil Bothwick
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