40 GB disk ... linux shows only 20 GB

malo_umoran · 06-28-2004, 06:04 AM

Hi,

I am trying this week to repair some things on my boxes and this is a pretty nice problem which I never had before. I got two weeks ago one new machine with Samsung harddisk 40gb. I really didn't partition disk, but just made one reiserfs and swap partitions and after that I installed Slack 9.1 with kernel 2.6.7.

everything was perfectly ok, until I notified 2-3 days ago, that "df" shows only 20 GB on /dev/hda1 ... instead of 40 GB.

df -h shows the current situation:

Code:

root@freeb:/mnt# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1              19G   13G  5.8G  70% /
root@freeb:/mnt#

cfdisk shows everything as it should be:

Code:

Disk Drive: /dev/hda
Size: 40060403712 bytes, 40.0 GB
Heads: 255   Sectors per Track: 63   Cylinders: 4870

Name          Flags   Part Type        FS Type         [Label]    Size (MB)
---------------------------------------------------------------------------
hda1          Boot     Primary         Linux ReiserFS              38996.06
hda2                   Primary         Linux swap                   1061.07

hdparm -I also:

Code:

ATA device, with non-removable media
        Model Number:       SAMSUNG SP0411N
        Serial Number:      S01JJ10X456842
        Firmware Revision:  TW100-08
Standards:
        Supported: 7 6 5 4
        Likely used: 7
Configuration:
        Logical         max     current
        cylinders       16383   65535
        heads           16      1
        sectors/track   63      63
        --
        CHS current addressable sectors:    4128705
        LBA    user addressable sectors:   78242976
        LBA48  user addressable sectors:   78242976
        device size with M = 1024*1024:       38204 MBytes
        device size with M = 1000*1000:       40060 MBytes (40 GB)

did anyone have such a problem before?

thanks

M.

marlor · 06-28-2004, 06:27 AM

well, while you were making the partitions you probably didn't set the ending cylinder of your big partition as you last cylinder of your HD. so probably the rest of your harddisk is now unpartitioned.

hope this help you out abit, i don't know if there is a way to partiotion without missing up and without having to reinstall so i can't give you any advise on that.

good luck

aaa · 06-28-2004, 06:32 AM

I encountered this before, when you format a partition, then use fdusk to make it bigger, the filesystem remains the same size even though the partition is bigger. If you can find a resizing tool for reiserfs, that will probably fix the problem.