On Monday 22 October 2001 03:02, you wrote: > Hi Jose, > > Thanks for your response and further assistance. > > At 09:45 AM 10/20/2001 -0400, Jose M. Sanchez wrote: > >One common source of problem which 8.1 exacerbates, through no fault of > >it's own, is DMA on CD-ROM drives. > > > >Some CD-ROM/R/W drives do not co-exist well with hard drives on the same > >IDE chain. These CD-RW drives can accept DMA access mode. > > > >Systems in turn do not favor dissimilar speeds on the same IDE bus. It > >seems especially if older IDE cables are used (noise?). > > I suppose that the above refers to the Linux box which was in problem in > installation. In this PC, C drive (ATA 33) is connected to primary IDE as > master with a ATA33 cable and CDROM to secondary IDE also as master with a > ATA33 cable. If I am wrong please correct me. > > >By turning off DMA on either the hard drive or CD ROM everything > >works... > > Do you mean that start the Mandrake-Linux 8.1 and turn off DMA in BIOS. Or > start the PC, turn off DMA in BIOS and re-install Mandrake-Linux 8.1 > > >I can manually turn on DMA after the system starts, but I have to be > >careful with "marginal" CD's which will hang the computer during CD read > >requests... > > How to turn on DMA after Mandrake-Linux 8.1 started ?
hdparm -d0 /dev/hdx where hdx is the drive you want to run non-dma. Many burners will not burn unless they are dma, or they will have streaming errors. Civileme > > >As I've mentioned, we only perform 2x writes for CD's which are going > >out for mass production in my firm. This is to assure no problematic > >reads on the duplication machines. > > > >When we go beyond 4x we will get failed batches, which is not good. > > Noted with thanks > > >|It was a A4 Tech 3 button-wheel PS/2 mouse. The installing program > >|selected PS/2 standard mouse automatically and I was not allowed to > >|change. If changed the monitor screen started to blink and I > >|could not > >|change it back to PS/2 standard mouse. Then the PC will re-start > >|automatically. > >| > >|After Mandrake-Linux 8.1 started, in KDE I brought up > >|HardDrake window and > >|found the mouse there under HardDrake List. > >| > >|At re-boot the PC hanged during kill process with following > >|warning pop-up > >|............. > >|................. > >|Mainloop return consoleInit : no such device or address > >|INIT : no more left in this runlevel > > > >This may well be another separate problem, no longer related to the > >CD-Burn... > > > >Try "resetting" the PNP/PCI info in the BIOS and set the BIOS to > >NON-PNP. > > OK > > >Bring up LM8.1 in text mode (initlevel 3) and kill off KDM/GDM if it is > >running. > > Is it in Safe-Mode. I am not skill enough using combination-key without a > mouse. Which command shall be used to kill off KDM/GDM ? > > >Then run mouseconfig to re-configure the mouse in text mode. > > Is it in Xterm window or any window ? > > Thanks in advance. > > B.R. > Stephen
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