Re: pivot_root depreciated?

[Phillip Susi <psusi@ubuntu.com>]

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On 1/30/2014 9:50 AM, Thomas Bächler wrote:
> At least mkinitcpio now generates a fresh "initrd" to return to
> during system shutdown instead of keeping around the actual
> initrd.

I see, so at shutdown the initramfs is re-loaded into a tmpfs that is
then pivot_root()ed to?  And at boot time, pivot_root is not used?

> Initrd is a bad idea. It's a ramdisk of fixed size with an actual
> file system on it. Instead, we now use initramfs, which is simply
> an archive which is extracted directly into rootfs. And as I said
> above, you can't pivot rootfs.

Ok, that sounds like it is what I was trying to remember.  They said
hell no, rootfs is rootfs, and there will be no pivoting it.  I guess
I assumed that meant pivot_root() was dead, not thinking you could
still use it after chrooting to a non rootfs.

> 4) chdir("/realroot"); mount --move /realroot ., chroot(".");

Wait, how do you move a mount into itself?  I thought this was just
the chdir and chroot.


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