Initramfs and /sbin/hotplug fun

From: Andrew Walrond
Date: Mon Jan 15 2007 - 09:25:56 EST


If the initramfs root filesystem contains /sbin/hotplug, the kernel starts calling it very early in the kernel boot process, well before /init has been called. In my case this resulted in lots of hotplug segfault messages as the kernel boots, followed by a thoroughly unhappy hotplug+udev once /init actually gets control.

To solve this, I deleted /sbin/hotplug from the initramfs archive and modified /init to reinstate it once it gets control. This works fine, but seems inelegant. Is there a better solution? Should sbin/hotplug be called at all before the kernel has passed control to /init?

Andrew Walrond
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