On 1/4/07, Kevin Kempter <kevin@xxxxxxxxxxxxxxxxxxx> wrote:
On Thursday 04 January 2007 09:23, Lonni J Friedman wrote: > On 1/4/07, Kevin Kempter <kevin@xxxxxxxxxxxxxxxxxxx> wrote: > > Hi List; > > > > I have FC5 on an IBM Thinkpad Z60m with 2G of RAM and a 100G SATA HD. I > > also have a removeable CD/DVD drive and I can insert a HD adapter into > > the "ultrabay" which adds a second HD attached to the main bus (as the > > CD/DVD would be). > > > > I inserted the second 100G ATA HD into the ultrabay and booted into > > single user mode. The second HD shows up as /dev/hdc my main HD shows up > > as /dev/sda. (Note if I boot with hdc=noprobe into single user mode then > > the system is not aware of the root user) > > > > I run this: > > dd if=/dev/sda of=/dev/hdc bs=64K & > > pid=$! > > > > Note: I've tried the same with bs=128K, bs=1M, bs=256K and with no bs tag > > at all with the same results > > > > Then I check the progress from time to time with this: > > kill -USR1 $pid > > > > I find that my avg speed in 1.7m/sec which leads to a full backup time of > > around 16-17 hours. > > > > Before the deal with M$ I used to run SuSE 10 and was able to do a dd on > > the same laptop inside of 4 hours. > > It sounds like DMA is disabled. All; How can I enable DMA on a SATA drive in a laptop?
It should be enabled by default. You could just boot with a Knoppix CD and then specify the dma parameter at boot time to dd the disk. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ L. Friedman netllama@xxxxxxxxx LlamaLand http://netllama.linux-sxs.org
