On Wednesday 15 May 2002 2:48 pm, Richard A. Smith wrote: > On Tue, 14 May 2002 17:49:35 -0400, Hussain, Omar [LBRT/LNA] wrote: > >WEll it looks like the ide adaptor we bought sees these two cards as being > >different. Its really annoying...I guess all compact flash cards aren't > >perfectly identical. > >so if i we stick to the same brand, we'll be ok i guess. > > A CF -> IDE adapter is no more than a just a CF connector to IDE > connector conversion with a pin grounded so that the CF boots up in > "True IDE" mode. The adapter dosen't "see" anything. It's your IDE > bridge that "sees" the device. > > We use 2 differnet CF's here (Sandisk and SST) and they are both > ATA-2 devices. They are almost ATA-3 but DMA is required in ATA-3 > and CF's generally only do PIO. > > Since the device is an IDE device the CHS stuff is really only > suggestions to the device. It does translations behind your back. > You can set them to be anything you want and the device will work. > You just might not get the full capacity of the device. > > Different mfgs will have different views on what the "optimum" > settings are for thier devices so thats why you see different values > for different CFs. > > If you have 2 different devices with different CHS setups and you > copy an raw image file then its unlikely it will work. As you have > seen. > > If you use the BIOS to put the devices in LBA mode you may have > better success. > > This is a really gnarly subject. I use syslinux to boot my CF cards > because LILO is such a pain in the ass to get setup right because of > this. > > I suggest that instead of trying to make raw copies of your disk you > make a .tar copy the filesystem contents and then create a script > that: > fdisks the device and creates the partitions, > makes a file systems on it, > mounts the filesystem > extracts the .tar file onto the filesystem. > makes it bootable the way you want it.
peewee linux does all that for you. its what i use. and an files that you want to change you can add yourself. I currently have it on my 16meg flash cards running X. > > The last line is the tricky part. -- To unsubscribe from this list, send a message to [EMAIL PROTECTED] with the command "unsubscribe linux-embedded" in the message body. For more information, see <http://waste.org/mail/linux-embedded>.
