[clue] Dumb disk question

[Vishal Verma]

# fdisk -l <dev> will show if there are any partitions on that disk - in
your case there don't appear to be any.
# blkid <dev> will show you what (if any) file system is on that disk.

On Fri, Oct 23, 2015 at 4:39 PM, Dan Kulinski <daniel at kulinski.net> wrote:

> If you do want to see if there is a file system directly on the block
> device, try file -s /dev/sdb.  This will look for the magic number in
> common locations.  I just learned this because I knew how the file command
> worked on files and wondered if it knew about file systems.  Sure enough,
> it does!
>
> On Fri, Oct 23, 2015 at 4:35 PM, Dan Kulinski <daniel at kulinski.net> wrote:
>
>> Do you know what type of file system it is supposed to be?  If there is
>> no partition table then the file system should be taking up the whole
>> device.  The way you limit the size of a file system, generally, is to
>> create a partition.
>>
>> On Fri, Oct 23, 2015 at 4:30 PM, foo7775 <foo7775 at comcast.net> wrote:
>>
>>> Hey all, first off, I am _very_ aware that this is a painfully-basic
>>> question, but this has been a rough week, so please bear with me...
>>>
>>>   I've been searching for this info for a while now, but my very-tired
>>> brain doesn't appear to be able to format the search terms appropriately.
>>> What I'm wanting to do is to confirm that a defined disk (/dev/sdb in this
>>> case) is essentially "a raw partition" & doesn't have any data on it.  If I
>>> can confirm that, then I can create the needed partitions/filesystems &
>>> turn it over to the customer.  The 'fdisk' utility shows me this:
>>>
>>> Disk /dev/sdb: 214.7 GB, 214748364800 bytes
>>> 255 heads, 63 sectors/track, 26108 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>> Disk identifier: 0x00000000
>>>
>>>    Now I can tell that it doesn't contain any partitions on it (i.e.
>>> sdb1, sdb2, etc.), but I just can't seem to remember how to confirm that it
>>> isn't formatted as a single big partition.  I'd be grateful if someone
>>> could refresh my memory on this...
>>>
>>> Thanks,
>>>
>>> T.
>>>
>>>
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>>
>>
>
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