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#1 2005-03-02 00:26:59

N3xt
Member
Registered: 2005-02-28
Posts: 22

Unusually long detection time for cd or hd... tips?

Hey Everyone smile

For some reason whenever I bootup, the detection for my cdrom drive or some command shortly practically doubles my boot time if not more(10-15 seconds extra)!  I was wondering if anyone could help me out, and see if I can configure my setup to minimize on the detection time for the specific device:

Here's an except from my kernel.log:

Mar  1 09:09:02 user ICH4: not 100% native mode: will probe irqs later
Mar  1 09:09:02 user ide0: BM-DMA at 0xbfa0-0xbfa7, BIOS settings: hda:DMA, hdb:pio
Mar  1 09:09:02 user ide1: BM-DMA at 0xbfa8-0xbfaf, BIOS settings: hdc:DMA, hdd:pio
Mar  1 09:09:02 user Probing IDE interface ide0...
Mar  1 09:09:02 user hda: TOSHIBA MK4021GAS, ATA DISK drive
Mar  1 09:09:02 user ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Mar  1 09:09:02 user Probing IDE interface ide1...
Mar  1 09:09:02 user hdc: UJDA750 DVD/CDRW, ATAPI CD/DVD-ROM drive
Mar  1 09:09:02 user ide1 at 0x170-0x177,0x376 on irq 15
Mar  1 09:09:02 user Probing IDE interface ide2...
Mar  1 09:09:02 user ide2: Wait for ready failed before probe !
Mar  1 09:09:02 user Probing IDE interface ide3...
Mar  1 09:09:02 user ide3: Wait for ready failed before probe !
Mar  1 09:09:02 user Probing IDE interface ide4...
Mar  1 09:09:02 user ide4: Wait for ready failed before probe !
Mar  1 09:09:02 user Probing IDE interface ide5...
Mar  1 09:09:02 user ide5: Wait for ready failed before probe !
Mar  1 09:09:02 user hda: max request size: 128KiB
Mar  1 09:09:02 user hda: 78140160 sectors (40007 MB), CHS=65535/16/63, UDMA(100)
Mar  1 09:09:02 user hda: cache flushes supported
Mar  1 09:09:02 user hda: hda1 hda2 < hda5 hda6 hda7 > hda3
Mar  1 09:09:02 user hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Mar  1 09:09:02 user Uniform CD-ROM driver Revision: 3.20
Mar  1 09:09:02 user PCI: Enabling device 0000:00:1d.7 (0000 -> 0002)

The delay visually appears to be when it says "hdc: UJDA750 DVD/CDRW, ATAPI CD/DVD-ROM drive", however, I'm guessing it might actually be some of the stuff underneath since the rest is pretty much invisible on bootup.

Any help would be appreciate smile

Thanks

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#2 2005-03-02 00:43:00

i3839
Member
Registered: 2004-02-04
Posts: 1,185

Re: Unusually long detection time for cd or hd... tips?

You can add the following to the cmd line of the kernel in the Grub or Lilo config:

ide2=noprobe ide3=noprobe ide4=noprobe

And if you want also hdd=none, hdb=none.

If that doesn't fix it something more seriously is going on.

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#3 2005-03-02 01:09:02

N3xt
Member
Registered: 2005-02-28
Posts: 22

Re: Unusually long detection time for cd or hd... tips?

How do I add those to my lilo.conf?  When I update lilo, it indicates that ide2 is an unrecognized token.

EDIT: I think I got it actually, do I use append="ide2=noprobe ..." under each kernel?

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#4 2005-03-02 01:36:16

N3xt
Member
Registered: 2005-02-28
Posts: 22

Re: Unusually long detection time for cd or hd... tips?

Thanks, it worked! smile

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#5 2005-03-02 15:07:39

i3839
Member
Registered: 2004-02-04
Posts: 1,185

Re: Unusually long detection time for cd or hd... tips?

It's fixed in 2.6.11, so when updating you shouldn't need the ideX=noprobe anymore (the hdd=none etc are always useful).

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