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Tasklist

FS#4920 - include hdparm in installer

Attached to Project: Arch Linux
Opened by Christer Solskogen (solskogen) - Friday, 30 June 2006, 20:48 GMT
Last edited by Tobias Powalowski (tpowa) - Sunday, 02 July 2006, 07:31 GMT
Task Type Feature Request
Category System
Status Closed
Assigned To Judd Vinet (judd)
Architecture not specified
Severity Low
Priority Normal
Reported Version 0.7.2 Gimmick
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

It would be nice if hdparm was avaliable when installing Arch. It would speed up things a bit.
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Friday, 29 December 2006, 14:24 GMT
Reason for closing:  Fixed
Comment by Roman Kyrylych (Romashka) - Saturday, 01 July 2006, 13:25 GMT
How this would speedup things?
Comment by Tobias Powalowski (tpowa) - Sunday, 02 July 2006, 07:31 GMT
added it to archboot scripts already
Comment by Christer Solskogen (solskogen) - Sunday, 02 July 2006, 09:10 GMT
It turns on dma on disks, both cd and hd. http://gentoo-wiki.com/MAN_hdparm take a look, if you dont know what hdparm is, or does.
Comment by Roman Kyrylych (Romashka) - Sunday, 02 July 2006, 09:35 GMT
I know what hdparm does. :-) But AFAIK kernel 2.6 turns DMA mode by default (at least on all my machines it is so). So I'm wondering how hdparm can speedup HDD even more? It can enable/disable write-cache, so this result in speed improvements, but many HDDs have write-cache enabled by default (or this is enabled by kernel for them?).
So, if I understand correctly, modern kernels and modern hardware doesn't need hdparm.
However, hdparm is useful for CD drives, as it allows to lower down speed (and noise).
Comment by Christer Solskogen (solskogen) - Sunday, 02 July 2006, 11:30 GMT
ah, okay. I just installed Arch using a cd on my laptop, and when I installed hdparm afterwards hdparm reported that dma was not enabled, I had to manually turn it on. It is possible that kernel 2.6 turn dma on on certain machine, but not all types.
Comment by Roman Kyrylych (Romashka) - Sunday, 02 July 2006, 11:38 GMT
OK, I'm sure that having hdparm on install CD would be nice, especially for solving such speed-related problems on some hardware configurations.
Maybe some hdparm-howto should be added too.
Comment by Christer Solskogen (solskogen) - Friday, 29 December 2006, 13:42 GMT
With the new hd layout this seems not to be an issue anymore (at least not on my machine)
Comment by Tobias Powalowski (tpowa) - Friday, 29 December 2006, 14:24 GMT
hdparm is included on new aplhas

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