Can FreeBSD install on other file system other then Standard file
system types
reddit / freebsd

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celestrion · 2022-09-15 22:54

If you want to do the setup by hand, FreeBSD ought to install onto
(and boot from) any filesystem the kernel supports (directly, not via
FUSE) and that has POSIX semantics (so not `msdosfs`).

This was how we installed onto ZFS before the installer supported ZFS.

That said, I'm not sure there *are* any filesystems besides ZFS and
UFS that lie at the intersection of those constraints.  If the EXT2
driver is complete enough, that would probably work, but nobody's
guaranteeing it.

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grahamperrin · 2022-09-16 00:32

> ... If the EXT2 driver is complete enough, that would probably work,
but nobody's guaranteeing it.

Not entirely up-to-date, but
<https://wiki.freebsd.org/Ext2fs#Known_issues> (not boot-specific)
might be of interest.

[ext2fs\(5\)](https://www.freebsd.org/cgi/man.cgi?query=ext2fs&sektion
=5&manpath=FreeBSD) loadable as a kernel module so I guess, [kldload\(
8\)](https://www.freebsd.org/cgi/man.cgi?query=kldload&sektion=8&manpa
th=FreeBSD) after booting from an installer disk, before proceeding
with installation.

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edthesmokebeard · 2022-09-16 01:20

From the title of the post I would have sworn it was submitted by  /u
/loziomaro.

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nohearth · 2022-09-16 02:26

I been thinking of making my own type of file system so that why I
mainly ask.

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PkHolm · 2022-09-16 02:45

I have VPS running FreeBSD from ext2 as root. But /boot is UFS

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celestrion · 2022-09-16 04:26

File system development is fun, and the VFS layer in BSD makes things
relatively easy.  I wish you the best of luck!

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rykolepl · 2022-09-16 05:46

So your FS will need to support unix permissions (for example FAT does
not support it), and you will need to modify bootloader to support
your filesystem

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vermaden · 2022-09-16 06:50

From what I know FreeBSD boots from UFS or ZFS only.

Regards.

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theRealNilz02 · 2022-09-16 12:44

What for? ZFS is all you're ever going to need.

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crest_ · 2022-09-16 17:52

Reporting back 777 for all files should boot (even if some daemons
will complain loudly about insecure permissions).

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rykolepl · 2022-09-16 20:32

Yeah, the kernel would load and init would start executing but for
example sudo and su will not work, due to lack of SUID (or sticky?)
bit.

And ssh will straight up refuse to use your private key if it's
readable to others

So while it will "boot" it wouldn't really be usable

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loziomario · 2022-09-16 21:34

ahahahahah. I'm here,but this post is not mine. Anyway I'm
loziomario,not maro. Can you explain why you think to recognize if a
post is made by me or not ?

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grahamperrin · 2022-09-17 21:25

> … if a post is made by me or not ?

I guess, you're known for (amongst other things) being unafraid of
non-standard approaches to things :-)