On Wednesday 06 December 2000 01:11, you wrote: > This evening I finally broke down cause my curiosity has gotten the better > of me. I Burned the Mandrake 7.2 Cd's and got read to install it so I > could see if I like it any better than 7.1. > > Whether I'm booting from the CD, or from a floppy I get the same error > when the kernel start uncompressing. > > CRC error > > -- System Halted > > Has anyone else seen this error when attempting to install 7.2. This, my > home machine is an AMD K6 233, and the one at work, which gave me the > error is a Celeron 500. I've got Mandrake 7.1 running on both machines > with no troubles. I know...if it ain't broke don't fix it...but I just > wanna see what it looks like. I've got full backups on both machine in > case the whole thing goes south I can be back up in 30 minutes. > > thanks in advance, It isn't quite clear from your description where the CRC error comes in. CRC check characters are generated by shifting the data through a hardware shift register with feedback loops that essentialy divide or multiply it by a polynomial, a special one that can generate all the elements in a field of 4 billion unique elements, and by appending this to the data stream. Supposedly, the receiving hardware duplicates the action. It is not very likely that two 512 bit data streams differing by one or two bits will generate the same CRC (what is left in the register after the multiplication). If this is happening when you are trying to boot the install kernel, then I would ask if you used MD5sum on the isos downloaded. And, was the floppy written from the CD you burned or taken from a downloaded image? It is possible that there is enouigh eccentricity between the burner and the CD reader that a CRC error could occur, and if the floppy was prepared from a read of the CD, then the error could propagate unchecked because floppies are a little too inexpensive to have CRC circuitry and just store what they get. If this is happening after the install, it is likely the death knell of a WD disk (which blows off the CRC). If it is happening at the install, I would say you have a coaster. Civileme
