problem mounting filesystem

[Nigel Wade]

Bill Tangren wrote:
> I am having a problem mounting a file system on a hard disk that I 
> installed in a backup computer. The BIOS recognizes the existence of the 
> hard disk. I am able to use fdisk to partition the disk, and mke2fs to 
> put an ext3 filesystem on it. Mounting it produces an error. I am NOT 
> using LVM. This is what I did:
> 
> 
> [root at aa2 ~]# fdisk /dev/hdd
> 
> The number of cylinders for this disk is set to 58168.
> 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): n
> Command action
>    e   extended
>    p   primary partition (1-4)
> p
> Partition number (1-4): 1
> First cylinder (1-58168, default 1):
> Using default value 1
> Last cylinder or +size or +sizeM or +sizeK (1-58168, default 58168):
> Using default value 58168
> 
> Command (m for help): p
> 
> Disk /dev/hdd: 30.0 GB, 30020272128 bytes
> 16 heads, 63 sectors/track, 58168 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/hdd1               1       58168    29316640+  83  Linux
> 
> Command (m for help): w
> The partition table has been altered!
> 
> Calling ioctl() to re-read partition table.
> Syncing disks.
> [root at aa2 ~]# mke2fs -j -L /home2 /dev/hdd1
> mke2fs 1.35 (28-Feb-2004)
> Filesystem label=/home2
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 3670016 inodes, 7329160 blocks
> 366458 blocks (5.00%) reserved for the super user
> First data block=0
> Maximum filesystem blocks=8388608
> 224 block groups
> 32768 blocks per group, 32768 fragments per group
> 16384 inodes per group
> Superblock backups stored on blocks:
>         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 
> 2654208,
>         4096000
> 
> Writing inode tables: done
> Creating journal (8192 blocks): done
> Writing superblocks and filesystem accounting information: done
> 
> This filesystem will be automatically checked every 28 mounts or
> 180 days, whichever comes first.  Use tune2fs -c or -i to override.
> [root at aa2 ~]#
> 
> /dev/hdd1               /home2                  ext3    defaults        1 1

> [root at aa2 ~]# mount /home2
> mount: /dev/hdd1 already mounted or /home2 busy

Your system thinks that /dev/hdd1 is already mounted, or /home2 is in use in 
some way. Do you have a shell which has /home2 as it's PWD?

Use the command 'fuser /home2' to try to identify what's accessing it.


-- 
Nigel Wade, System Administrator, Space Plasma Physics Group,
             University of Leicester, Leicester, LE1 7RH, UK
E-mail :    nmw at ion.le.ac.uk
Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555