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OpenBSD Security Functionally paranoid! |
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non-journaled filesystems on liveusb media
Hi everyone !!!
A question : Some would argue that on usbs , the best filesystem to use is non-journaled .. fat32 or ext2 .. as less writing is imposed on the usb fragile sectors .. then this would extend the life of the medium .. * is this true ? * are there any security-risk consequences ? maybe this third question is off-topic , * slax can be installed on usbs using either linux filesystems or fat32 .. can I install *BSD on a fat32 formatted usb ? maybe to let it be accessible as thumb drive when used elsewhere unix machines .. for instance .. * in this case .. is there a way to secure access to it ? Million Thanks to everyone sharing knowledge .. |
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Thanks Ocicat .. I was a bit ambiguous in the last question .. rephrasing :
How can I install some BSD flavor on a fat32 formatted usb flash using fat32 rather than ffs .. the way I once did with slax ? I read the 4th section and still can't figure out what you meant by "change default FFS filesystem on the boot partition" .. do you mean setting / read only ? once again sorry for being ambigious .. what I meant by security-risk .. not physically possessing the device .. but on the network .. since to msdos filesystem .. *Nixes can access +rw .. unlike with ffs .. so the issue is penetrating and not only being able to read content where no cryptography is used .. so the question is : how then (presumming that it's possible to use OpenBSD the slax-way) can I deny bad guys from compromising the system ? while still it is +rw fat32 .. maybe the whole thing is impossible and that I am forcing "something-slax" on OpenBSD to adopt .. |
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I don't know about the other *BSD family members, but for OpenBSD, I will repeat again. During installation, are you offered a choice of what underlying filesystem is used? The answer is still in Section 4 of the FAQ.
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it seems odd .. what subsecion in section 4 please ?
Last edited by daemonfowl; 24th February 2012 at 10:27 AM. |
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What questions are asked during installation? Do any of these questions give you a choice about filesystems?
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you mean I can choose some other filesystem instead of default 4.2BSD when setting up disks?
never thought this is possible .. |
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For bonus points, you will find that installation will ensure there is one MBR partition of type A6 before the operating system can be installed. Therefore, while OpenBSD can access filesystems other than FFS, it must boot on FFS. Now, going back to your original question (which are really two questions...): Quote:
I suspect that it is possible, but I would guess no developer finds booting onto FAT32 to be useful enough to actually do the work. OpenBSD supports over a dozen hardware platforms. Staying generic is far more important, but that is simply an opinion. Last edited by ocicat; 25th February 2012 at 12:24 AM. |
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My friend .. you seem to have been missing my point ... I've never had problems dafault-installing openbsd/netbsd on usb sticks .. I have NetBSD 6.beta on a 16g usb .. an 8g openbsd flash .. & 4g miscroSD card with Netbsd 5.1 .. but all with FFS ..
What I was wondering , is OpenBSD as flexible as slax to accept being installed on fat32 formatted usbs .. I mean : literally departing from ffs to reside on msdosfs .. maybe foolish on my part .. sorry then .. I just hope .. you remember that old FatLinux (Linux is happy with Fat) .. so will OpenBSD too be happy with fat32 .. it was an old opportunity to discover linux .. ya .. :-) .. |
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shame on me .. it's faq 14 .. it high time I slow down pace .. and take time to read , and reread enough .. before troubling you ..
what a bad feeling .. sorry @Jgimmi |
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