Hi, On Mon, 13 Mar 2006 13:48:30 +0100 (CET) "Carlos E. R." <.> wrote:
I also checked the DMA settings, but the max. DMA/4.3 or similar I could activate, there was no other possibility.
What does hdparm say on the device?
Without DMA it says trinity:~ # hdparm /dev/hdd /dev/hdd: IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 239/64/32, sectors = 0, start = 0 trinity:~ # With DMA enabled it says <...> using_dma = 1 (on) <...> I don't know hdparm more, so I'm afraid this is not the info you really asked for... Maybe you would need these: trinity:~ # hdparm -i /dev/hdd /dev/hdd: Model=IOMEGA ZIP 250 ATAPI, FwRev=51.G, SerialNo= Config={ SpinMotCtl Removeable nonMagnetic } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=0kB, MaxMultSect=0 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0 IORDY=on/off, tPIO={min:500,w/IORDY:180}, tDMA={min:180,rec:180} PIO modes: pio0 pio1 pio2 pio3 DMA modes: *mdma0 AdvancedPM=no * signifies the current active mode trinity:~ # hdparm -I /dev/hdd /dev/hdd: ATAPI Direct-access device, with removable media Model Number: IOMEGA ZIP 250 ATAPI Serial Number: Firmware Revision: 51.G Standards: Likely used: 4 Configuration: DRQ response: <=10ms with INTRQ Packet size: 12 bytes Capabilities: LBA, IORDY(can be disabled) Queue depth: 1 DMA: *mdma0 Cycle time: min=180ns recommended=180ns PIO: pio0 pio1 pio2 pio3 Cycle time: no flow control=500ns IORDY flow control=180ns Removable Media Status Notification feature set supported
I don't think that it really counts, but the drive was not originally there in the comp, but was added later. Probably that's why an extra problem used to happen, when booting up with no ZIP disk in the drive I get only /dev/hdd, but no /dev/hdd4, so generally I can't even later manually mount the device!
Add it in /etc/udev/static_devices.txt Hmmm. The format used there is completely new for me! As first I added "hdd4 b 22 68 640", making the device's permissions good, but owned by root:root and not root:disk. Any idea to fix this please?! (After I mount a disk, the permissions get fixed and both root:root and root:disk works. Independently of that I would like to fix...)
Regards & many thanks Carlos, Pelibali