Messages in this thread | | | Date | Sun, 5 Dec 1999 16:59:58 +0100 | From | Wichert Akkerman <> | Subject | over 5Gb missing from a 13.5Gb disk |
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I'm having a problem with a new IBM IDE disk I just bought. It is a 13.5Gb disk, but I can't access more then somewhat less then 8Gb from it..
This is what the kernel reports:
ide0: BM-DMA at 0x1440-0x1447, BIOS settings: hda:DMA, hdb:pio hda: IBM-DJNA-371350, ATA DISK drive hda: IBM-DJNA-371350, 12949MB w/1966kB Cache, CHS=40681/247/228, UDMA
hdparm seems to disagree with those numbers:
/dev/hda:
Model=IBM-DJNA-371350, FwRev=J76OA30K, SerialNo=GM0GM088910 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34 BuffType=3(DualPortCache), BuffSize=1966kB, MaxMultSect=16, MultSect=off DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=2 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=26520480 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2 IORDY=on/off, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4 UDMA modes: mode0 mode1 *mode2 mode3 mode4
The cylinder/heads/sector count and the number of LAB sectors corresponds to what is printed on the disk label. Since the kernel gets the sizes wrong I have to enter them manually in fdisk.. no big problem. Now I create one big partition for the disk:
Disk /dev/hda: 16 heads, 63 sectors, 16383 cylinders Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System /dev/hda1 1 16383 8257000+ 83 Linux
However the result partition is somewhat smaller than the expected 13Gb:
/dev/hda1 7.8G 20k 7.4G 0% /mnt
It doesn't matter if I enable or disable LBA addressing in the BIOS.. the effects are exactly the same.
Wichert.
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