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

[David W Noon <dwnoon@ntlworld.com>]

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On Thu, 1 Dec 2011 08:47:27 +0000, Neil Bothwick wrote about "Re:
[gentoo-user] Re: Full disk encryption":

>On Thu, 1 Dec 2011 00:27:06 +0000, David W Noon wrote:
[snip]
>> 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.

The objective is to get /, /usr, /var and any other directory path the
user feels is needed mounted before udev starts.  This is a
continuation of the "udev now sucks" thread from a few months ago.

I need to fsck / before I mount /usr, /var and everything else.  This
is because the mount point directories could be zombies that would be
removed by fsck, thus invalidating the mount.  We all hope that /usr
and /var are not zombies, but fsck won't take my word for it.
-- 
Regards,

Dave  [RLU #314465]
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dwnoon@ntlworld.com (David W Noon)
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