problem mounting filesystem

Bill Tangren bjt at aa.usno.navy.mil
Wed Feb 15 20:18:35 UTC 2006


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
[root at aa2 ~]# mount /dev/hdd1
mount: /dev/hdd1 already mounted or /home2 busy
[root at aa2 ~]# umount /dev/hdd1
umount: /dev/hdd1: not mounted
[root at aa2 ~]#




As you can see, there are no errors until I try to mount. I've looked at the 
mount point and see no problems. Any suggestions?

Bill Tangren




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