Re: dracut speed and kernel version

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On Mon, 12 Oct 2009, Harald Hoyer wrote:

On 10/09/2009 10:20 PM, Adam Pribyl wrote:
This is my first time I was forced to "hand use" dracut, because
initramfs build by kernel install does not work (due to kexec-tool bug).

But I was surprised by few thinks:

1. dracut accepts as a kernel version non existing kernel name and
builds the initramfs - this is really crazy (there are some warnings,
but it tooks a bit of time before first "File does not exist".)


You are right.. will add a precheck.


Thanks.

2. dracut initramfs build takes ages compared to mkinitrd

Does it really matter? How often do you build an initramfs per week?


Well... speed allways mathers. I am not using it daily today, but remember the time when I was looking for proper module preload configuration for some rare scsi device and was building it very often. I am under impression that with every kernel build you need to regenerate initramfs, to have correct modules loaded on next reboot.. and this I was used to do very often. Then every delay counts.

3. dracut spits some confusing warnings, I am not sure what to do with:
W: Possible missing firmware aic94xx-seq.fw for module aic94xx.ko
W: Possible missing firmware ql8100_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2500_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2400_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2322_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2300_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2200_fw.bin for module qla2xxx.ko
W: Possible missing firmware ql2100_fw.bin for module qla2xxx.ko

Am I doin' something wrong or this is expected behaviour?

Well, there are some modules which might require a firmware. Dracut is only reporting that they are missing. Just in case...
Maybe I should suppress these warnings.. what do you think?

I would suppress them, let them print in "debug" mode.

Adam Pribyl


Adam Pribyl

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