Error qtparted

[Tiago Cruz]

Hello!

My  qtparted show a error message and I can't manage my partitions:

Error: Unable to satisfy all constraints on the partition.
A bug has been detected in GNU parted.  Please email a bug report to 
address@hidden containing the version (1.6.21) andthe following 
message:Assertion (disk != NULL) at ../../libparted/disk.c:1037 in 
function ped_disk_next_partition() failed.

address@hidden:~$ df
Sist. Arq.            Tam   Usad Disp  Uso% Montado em
/dev/hda8             7,5G  5,8G  1,8G  77% /
/dev/hda2              40G   33G  6,9G  83% /mnt/hda2
/dev/hda5              21G   16G  4,6G  78% /mnt/hda5
tmpfs                 252M     0  252M   0% /dev/shm

address@hidden:~$ sudo fdisk -l

Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

  Device Boot      Start         End      Blocks   Id  System
/dev/hda1               2        9729    78140160    f  W95 Ext'd (LBA)
/dev/hda2   *        2659        7757    40957717+   c  W95 FAT32 (LBA)
/dev/hda5               2        2658    21342321    7  HPFS/NTFS
/dev/hda6            7758        7795      305203+  82  Linux swap
/dev/hda7            7796        8754     7703136   83  Linux
/dev/hda8            8755        9729     7831656   83  Linux

address@hidden:~$ sudo hdparm -i /dev/hda

/dev/hda:

Model=ST380011A, FwRev=3.06, SerialNo=5JV684QQ
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes:  pio0 pio1 pio2 pio3 pio4
DMA modes:  mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:

* signifies the current active mode

Thanks a lot!