[wellylug] Error booting from live CD

[Pete Black]

Ian,

you could try the 'ide=nodma' kernel flag - things will work slower, 
but they should work.

if that lets you install it is likely you have a motherboard that needs 
an specific driver for its ide controller, or that you are having some 
type of irq issue - it is possible your hard disk works fine with dma 
but your cd doesnt for some reason.

To re-enable dma after boot you will need to use the 'hdparm' tool e.g. 
'hdparm /dev/hda -d1' to switch dma on for the first ide drive.

Once you confirm enabling dma on the hdd works, you probably want to 
add it to a script that is run at boot time.

I have seen issues like this myself, which seem to only affect 
installation, and subsequent booting from the hard disk gives no 
trouble with dma enabled by the kernel (e.g. no ide=nodma flag)

Hope that helps

-Pete


On 16/07/2005, at 10:52 AM, Ian Beardslee wrote:

> Hi there,
>
> Having trouble building LFS on a laptop with other livecds (wrong 
> kernel,
> wrong gcc, wrong number of ptys etc) I thought I'd have another go at
> using the LFS livecd.
>
> I'm getting the same error message as I was getting for the 6.0 livecd 
> as
> the laptop boots from the CD ...
>
> NET: Registered proctol family 1
> NET: Registered protcol family 17
> Freeing unused kernel memory: 340k freed
> ide-cd: cmd 0x28 timed out
> hdc: DMA interrupt recovery
> hdc: lost interrupt
> hdc: status error: status 0x58 { DriveReady SeekComplete DataRequest }
> ide: faied opcde was: unknown
> hdc: drive not ready for command
>
> Those last 6 lines then repeat themselves about every minute.
> Occasionally there is a '.' on a new line after the 'hdc: drive not 
> ready
> command' that aftera minute the 'ide-cd: cmd 0x28 timed out line' 
> appends
> itself to.
>
> I know the livecd works on a laptop I have sitting at work and I know
> other livecds can boot from the laptop's cd drive.
>
> So to me it seems that there is an option complied into the kernel 
> that is
> giving me some grief.  Does anyone know what I can do to get the cd to
> boot properly.  After a bit of googling, I've seen other similar errors
> ofr other distros and someone suggested
>
> linux noacpi pci=noapic
>
> but that didn't seem to do it.  Any other options I can pass to the 
> kernel
> to get things happening.
>
> Cheers,
>
> Ian
>
>
>
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