Vic Berdin ha scritto:
Hi Giovani,
-Original Message-
From: Giovanni Franza [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 28, 2004 7:39 PM
To: Vic Berdin
Subject: Re: [leaf-user] LEAF use of M$ technology: FAT fs
Vic Berdin ha scritto:
Hi everyone,
Just a bit concerned. Look here:
http://www.microsoft.com/mscorp/ip/tech/fat.asp
However, we have this to keep our hopes up:
http://www.pubpat.org/Microsoft_517_Reexam.htm
Any ideas for LEAF floppies (at least) in case M$ gets their patent
claim?
This is going to be a real headache for embedded solutions using CFs and
digtal
cam manufacturers, that's for sure.
I was concerned, too. So I used the documentation to use GRUB joined to
the documentation to use USB stick joined to some help to use ext2
filesystem and, putting all together, the thing worked, with some
limitations.
I'm not sure that this can be done on a floppy, but I think that this
can be done on a CF.
If anybody is interested, the informations to use GRUB and USB are on
the leaf project site (as viewed in previous postings) and, to use ext2,
the only need is to add ext2.o in /boot/lib/modules and list it in
/boot/etc/modules that (both) belongs to initrd.lrp.
I hope that this can be useful,
Giovanni Franza
IMHO, I do not think ext2 will cut it for production use with respect to
data integrity. Maybe ext3 or reiserfs (or xfs?) on CFs. But what about
for floppies? Ouch! Even for CFs, the mentioned fs may not prove to be
efficient at all due to space consumed by journalling (if you have a
large footprint).
I'm currently testing ext3 + cramfs on CF. Seems ok... but still in
testing stage. Can anyone really vouch for ext3 inegrity/stability on CF?
If ever M$ gets it, will really miss the LEAF floppy approach though :o(.
Regards,
Vic
Well done. For integrity ext3 is good.
From my personal point of view the USB, or the CF, or the floppy are
used ONLY for startup and then are offiline so I haven't integrity issues.
For logging I prefer to do stealth logging on a different PC without an
IP address. For now I do not logging outside ramdisk.
Only a word about floppy: when I was using my first two (lrp) firewalls,
after a year, I needed to reboot them and the floppy doesn't work at all
(I had, of course, my backup so there is not a problem). After a certain
number of test I discovered that floppy sucks and I've started to test
CFs that performed very well so I adopted CF, first on LRP and then on
Leaf Bering 1.1 stable. On the same I tested USB that is more versatile
(for example we can protect it with a switch in order to avoid
intentional corruption) but also have some problems (for example large
USB devices are handled different from different PC so GRUB stop with a
geometry error).
Best regards
Giovanni Franza
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