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

[Michael Mol]

Stupid question...Would using LZMA and a tarball reduce the size of your
initeamfs?

ZZ
On Nov 30, 2011 7:30 PM, "David W Noon" <dwnoon@××××××××.com> wrote:

> On Wed, 30 Nov 2011 23:26:56 +0000, Neil Bothwick wrote about Re:
> [gentoo-user] Re: Full disk encryption:
>
> > On Wed, 30 Nov 2011 22:07:35 +0000, David W Noon wrote:
> >
> > > > Why do you need e2fsprogs on an initramfs?
> > >
> > > One needs e2fsck to do a "preen" prior to mounting the required
> > > volume(s).
> >
> > 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.
>
> When running without (or with the default) initramfs, the root
> partition itself becomes the active filesystem, so loading programs
> from /sbin or /bin and libraries from /lib works as expected.
>
> This might be one of Dale's problems, if he was trying to use commands
> from the root filesystem within the initramfs.
> --
> Regards,
>
> Dave  [RLU #314465]
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
> dwnoon@××××××××.com (David W Noon)
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
>