> > I have been trying unsuccessfully over the last 2 weeks to get > > compactflash working on my Linux system based on mini-ITX (Via CL > > motherboard, pentium compatible). > > > > I use a CF->IDE adapter to access it just like a IDE hard disk. My > > compactflash is Sandisk SDCFH-512. Linux can detect it. I can even > > mount it and do a fdisk on it. However, the moment I try to do > > anything substantial like copy multiple files or copy 1000 blocks > > using dd, I lose access to it. Linux loses access to it totally. I > > can't even do a fdisk on it. I get an error like "Unable to open > > /dev/hdc".
On Thu, 27 Jan 2005 22:07:35 +0100, Willy Tarreau <[EMAIL PROTECTED]> wrote: > Have you checked that the power connector really provides 5V to the > IDE-CF adapter ? I had the exact same behaviour 5 years ago with a power > wire cut. Signal lines were powerful enough to bring power to the cheap > flash (16 MB), I could even read it, most times. The kernel almost always > booted from it, and when it turned to mount the ext2 fs R/W, it hanged. I > finally partially destroyed it this way, and it got several defects which > could not be cleaned with a simple write or format. > > Other than that, I have lots of CF cards on IDE adapters (some on motherboard, > some hand-made, some bought to serious makers), and never ran into such > problems since. > > Willy The power connector is fine. I also disabled DMA (some suggestion on this newsgroup to a similar error) and now I can't turn it back on. <snip> everest root # hdparm -d1 /dev/hdc /dev/hdc: setting using_dma to 1 (on) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/