turning off udma from the bootprompt

Peter T. Breuer (ptb@it.uc3m.es)
Sun, 22 Feb 1998 02:20:42 +0100 (MET)


Does anyone know how (short of recompiling) to turn off udma pci
disk busmastering on a triton tx?

I want to test 83MHz bus speed, if you want to know! & I don't want my
disk to try it at the same time as I do .. but I can't turn the udma
off. I tried the bios, but the kernel unfixes my fix there. I can turn
off udma transfers with hdparm, but that's too late!

Off to the latest versions of the howtos now ...

---------------------------------------------------------------------
Peter T. Breuer MA CASM PhD (Ing.), Prof. Asoc.
Area de Ingenieria Telematica E-mail: ptb@it.uc3m.es
Dpto. Ingenieria Tel: +34 1 624 99 53
Universidad Carlos III de Madrid Fax: +34 1 624 94 30/65
Butarque 15, Leganes/Madrid URL: http://www.it.uc3m.es/~ptb
E-28911 Spain

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