Thanks for your guys help!
Tom
--- In "chentom60" <> wrote:
>
> Joe,
>
> Thanks!
>
> I also enjoy using debian on a huge USB drive rather, but I keep
> wondering if this is safe or not. Very good explanation!
>
> One more question, if you mount a read-only file system, how can
you
> save something later on? for example, if the file system is read
> only, how could you create some temperary files duing the
operation?
> Is it possible to make /bin read only but /tmp read-write?
>
>
> Tom
>
> --- In Joe Bouchard <jbouchard@> wrote:
> >
> > On Mon, Nov 27, 2006 at 11:14:54PM -0000, chentom60 wrote:
> > > Hello,
> > >
> > > After 7250 boots up, I am using "loadUSBModules.sh"
> and "loadUSB.sh" to
> > > chroot to USB file system. I am wondering what is the
difference
> > > between this method and using RamDisk to boot to a mini file
> system
> > > first then pivot root to USB? Are they virtually same thing?
> >
> > Let me give you another scenerio which might make a good
example.
> I have a
> > bootable linux CD, aka Timos rescue disk, which I can use on a
> regular Intel PC.
> > When it starts it says "do you want to (a) run from CD, or (b)
load
> the whole
> > O/S into RAM." If I run from CD when I issue commands it hunts
the
> CD for the
> > executables, but if I load it all into RAM, I can remove the CD,
> and the whole
> > O/S runs from RAM. The first case requires the CD, but not much
> RAM. The
> > second case requires the CD only long enough to load an image
into
> RAM, then it
> > takes a lot of RAM.
> >
> > Once you chroot to something else, you end up in the place you
> chroot'ed to, and
> > it matters little how you got there, so you might say it is
> virtually the same
> > thing. One other difference is that you have to take deliberate
> steps to free
> > up the RAM you tied up with the RamDisk. I presume TSlinux does
> this for you.
> >
> > >
> > > Is using USB,CF drive a safe way to work around the limitation
of
> on
> > > board flash memory?
> > >
> >
> > On my TS-7200 I routinely use a CF card as my main disk instead
of
> the the tiny
> > onboard flash because I want a full featured O/S like I have on
my
> PC. For
> > safety I use ext3 and mount read-only during "production" (aka
when
> user will
> > cycle power at will). I've never had any issues.
> >
> > Hope that helps.
> >
> > Joe
> >
>
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