Re: install read only system
On 07/06/13 07:56 PM, piotr wrote:
> I would like to do a fix installation of live on 500MB flash drive.
> Howto install Wheezy READ ONLY system on a PC/Notebook 1:1 from usb with live hdd using Live Installer?
Clearly you have specific things in mind when you say "read only" and
"1:1", but truly I cannot make sense of either of them.
In its strictest sense, a read-only system is absolutely useless. You
must be able to write *somewhere* to store the changing state of the
running system, even if only in a ramdisk. Live systems are such a
system, with a read-only layer in a union filesystem with a cow
(copy-on-write) layer in tmpfs. So if what you really want is a live
system, why bother installing it? Just run the live system.
What do you really mean by 1:1? A live system and an installed system
are very different in how they boot and how they operate after they
boot, so of course it is not really a 1:1 copy. You end up with a lot of
the same material as you did on the live system, but the copy is not
exact, as the live-specific bits are removed. But if the live-specific
bits are removed, then it doesn't satisfy your "read-only" goal ... and
again, if you wanted a read-only system, why not just run a live system?
So I'm left confused by your terminology, because you haven't really
explained what you want in the end. If you want to run a live system,
you really don't want to use live-installer to install it. You just want
to put the live system itself on the boot drive of your system (via,
say, dd or so -- or if you don't want to wipe out all partitions on that
drive, you'll have to just take the files themselves and manually set up
the bootloader to boot into it).
Ben
Reply to: