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Re: Okay, that's too much now!


John Hasler wrote:
> You are free to choose FreeBSD.

That will become an adventure. Common roots are more than
20 years in the past.

FreeBSD is not too bad. But you will notice that it has a
much smaller tester community than GNU/Linux. The focus is
on big iron, not on personal computers.

There is a project named PC-BSD which tries to make it more

For myself it would not be a good choice, because ISO 9660
mounting cannot handle files >= 4 GiB or multi-session
added above 4 GiB.
Further FreeBSD 8 crashes reliably when i switch off an idle,
not mounted eSATA DVD drive and less reliably when i do this
with a USB DVD drive. (No admin of a 128 core machine would do
that, of course. It could bring bad luck to the 1 TiB of RAM.)

The hardware driver problem might be fixed in FreeBSD 11,
but the ISO 9660 problems are deeply rooted in the code
for inode number generation and inode addressing.

Doug wrote:
> is there a way to install FreeBSD
> on an ext4 or NTFS file system, or some other fs that
> Linux can read?

They seem to be heading towards ZFS, due to lack of license
allergic reactions. That will be another culture shock for
a migrant from Linux.

I know it from Solaris and its administration is very
different from other filesystems. (My favorite command
on Solaris is: pfexec poweroff)

> I'd like to try it out, but not at the expense of having a
> disk that nothing else can read, including GParted.

It's that they put several of their "slices" into what we
call "partition".
You typically need one MBR partition to host all slices of
a FreeBSD. That's actually better contained than a Linux
installation. (Dunno how they deal with GPT partitions.)

How about a virtual machine for a start, or Debian/kFreeBSD,
the not so official Debian port to the FreeBSD kernel ?

Glenn English wrote:
> But *surely* they can read an old PC-DOS file. Everybody can do that.

Everybody should be able to read ISO 9660.
But your mileage varies from operating system to operating system.

I understand the goal was to install FreeBSD so that one can
read (and write ?) its system disk from Linux.
The basic filesystem of FreeBSD is UFS. Seems to be supported
on Linux.
I guess it depends aminly on Linux' ability to map slices
to partition devices (e.g. /dev/sdb4).

> No mention that can find of FAT anything. But *surely*...

Yes, it can. (At least with mainstream use cases.)

> I don't know for sure that their tar/dump write tapes like
> Linux does

tar or cpio should be compatible. Not to speak of third party
things like "bru" or "dar". But where to find tape hardware,
anyway ?

I can confirm that DVD with ISO 9660 below the 4 GiB limitations
is exchangeable with Linux. (Unless you hit more bugs of any
of both OSes.)
A DVD with a tape archive on it will work too, of course.
Device addresses are easy: /dev/cd0 , /dev/cd1 , ...

For those who want to develop their own OS entrails:
NetBSD has the nicest kernel developer community i ever met.

Have a nice day :)


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