Robert P. J. Day wrote:
i'm sure i'm going to regret asking this only seconds after
i hit
ENTER, but at what point during the boot process does the kernel's
corresponding /boot/initrd.img file kick in and get used?
i'm following along reading the logic of initramfs and early
userspace, and can see where a compressed cpio archive can be
incorporated into the kernel image itself. fair enough.
but how does the /boot/initrd.img (which is itself a compressed cpio
image) get processed during boot? it's certainly not passed as an
argument to the kernel as i can see via /proc/cmdline. so how does it
affect the boot sequence? thanks.
rday
I believe that Grub loads the image, and then passes the location to
the kernel at boot. Support for the file system of initrd.img has to
be built into the kernel.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!