At Thu, 28 May 2009 19:24:25 -0400 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> I have my 640GB USB drive connected to a CentOS 5 server and using
> fdisk, it seems to show a partition of the correct size, /dev/sdd1, but
> after mounting, the drive shows only 244M size. Does the message
> received when running fdisk below mean I should reformat this drive, I
No, fdisk is giving you a message that only really relates to BIOSs and
O/Ss that are now long obsolete. Unless your machine is 1980's or early
1990's vintage, you can safely ignore that message.
> can't seemed to figure out how to do that with fdisk. Can someone tell
> me how to reformat, if needed? The drive is empty, I formatted a while
> back on a Debian machine....
How long back (?).
Either the version of mkfs.ext3 was an old and limited version (not able
to handle such a large drive) OR you did something strange with dd.
You could try reformatting it with the current version of mkfs.ext3 on
your CentOS 5 system:
# umount /home/usb
# mkfs.ext3 /dev/sdd1
This *should* format the whole partition.
>
> [root@vhost1 ~]# /sbin/fdisk /dev/sdd
>
> The number of cylinders for this disk is set to 77825.
> There is nothing wrong with that, but this is larger than 1024,
> and could in certain setups cause problems with:
> 1) software that runs at boot time (e.g., old versions of LILO)
> 2) booting and partitioning software from other OSs
> (e.g., DOS FDISK, OS/2 FDISK)
>
> Command (m for help): p
>
> Disk /dev/sdd: 640.1 GB, 640135028736 bytes
> 255 heads, 63 sectors/track, 77825 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdd1 1 77825 625129281 83 Linux
>
> Command (m for help): q
>
> [root@vhost1 ~]# mount -t ext3 /dev/sdd1 /home/usb
> [root@vhost1 ~]# df -h|grep usb
> /dev/sdd1 244M 6.1M 225M 3% /home/usb
> [root@vhost1 ~]# ls -lah /home/usb
> total 21K
> drwxr-xr-x 3 root root 1.0K May 10 14:38 .
> drwxr-xr-x 8 root root 4.0K May 9 23:26 ..
> drwx------ 2 root root 12K May 10 14:38 lost+found
> [root@vhost1 ~]# du -d 1 -h /home/usb
> du: invalid option -- d
> Try `du --help' for more information.
> [root@vhost1 ~]# du -h /home/usb
> 12K /home/usb/lost+found
> 13K /home/usb
>
--
Robert Heller -- 978-544-6933
Deepwoods Software -- Download the Model Railroad System
http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows
heller@xxxxxxxxxxxx -- http://www.deepsoft.com/ModelRailroadSystem/
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