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N3xt

Member

Registered: 2005-02-28

Posts: 22

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

Hey Everyone

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

Thanks

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.

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?

N3xt

Member

Registered: 2005-02-28

Posts: 22

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

Thanks, it worked!

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).