Re: [gentoo-user] Re: Full disk encryption

[Neil Bothwick <neil@digimed.co.uk>]

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On Thu, 1 Dec 2011 00:27:06 +0000, David W Noon wrote:

> > Why not mount root read-only, just like in a non-initramfs system?
> > 
> > Any e2fsck commands will be run during the boot runlevel, before
> > remounting root rw.  
> 
> Unfortunately, the system does not work that way.  When running inside
> an initramfs, one cannot load executable content from mount points --
> only from within the initramfs.  So, while it is perfectly possible to
> do "ls /mnt/root/sbin/e2fsck" (assuming the root partition has been
> mounted ro as /mnt/root), it is not possible to load and execute that
> program. [And, yes, I have adjusted the PATH and LD_LIBRARY_PATH shell
> variables to address the program and library directories on the mounted
> root partition.] After performing a switch_root to the actual root
> partition, this restriction is lifted.

I understand that, but not why you need to run e2fsck before the
switch_root. Is this to do with the way your system is set up? The object
of the initramfs is only to get the system into a state where / can be
mounted and switch_root run, I assume you are trying to do more than that
with it.


-- 
Neil Bothwick

WORM: (n.) acronym for Write Once, Read Mangled. Used to describe a
      normally-functioning computer disk of the very latest design.

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