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Bug#512176: initramfs-tools: [PATCH] Make rootfstype working



On Mon, Feb 16, 2009 at 12:56:53PM +0100, maximilian attems wrote:
> an experienced user using rootfstype may aswell know about rootdelay.
> if not it is easy to look up in man initramfs-tools.
> 

Thats looks wrong. rootdelay and rootfstype are different options. This
bug report was opened because rootfstype is non-working for filesystems
that are not supported yet by udev. 

Yes. This may be workarounded with rootdelay=15 or something like this.
But this is workaround of existing bug.

If rootfstype was not designed to specify custom filesystem type, why it
exists at all? Any use case example? Why it even tries to check/detect
filesystem type if correct one was provided by experienced user? And any
reason why initramfs should fail and wait for "rootdelay" timeout if root
device exists and filesystem type was specified at boot time?

For example, rootdelay may be set to some big value to avoid booting
troubles for slow usb devices that needs some time to appear. But why I
should wait 5-10 seconds on machine where USB works fast enough and
initramfs already polls for root device every 0.1 second? Wasn't such poll
introduced to reduce boot time, avoid waiting and boot ASAP?

-- 
WBR, Dmitry

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