Softupdates on /

[Almindor]

How do I set softupdates on root (/) partition?

I tried this:
init 1 (go single)
mount -o ro / (read only)
tunefs -n enable / (enable softupdates)

And the result I got was:
tunefs: softupdates set
tunefs: failed to write superblock

What am I doing wrong?[/code]

[takeda]

[quote="Almindor"]How do I set softupdates on root (/) partition?

I tried this:
init 1 (go single)
mount -o ro / (read only)
tunefs -n enable / (enable softupdates)

And the result I got was:
tunefs: softupdates set
tunefs: failed to write superblock

What am I doing wrong?[/code]

It worked for me, except, to singleuser right away, after that countdown at the booting system I pressed other key than enter, and entered boot -s.
I was required to run fsck before FBSD it let me to change this.

[takeda]

Correction, I just learned that after rebooting system, PCBSD forgets about softupdates.
This is some PCBSD only issue, I have FreeBSD on two other computers and I don't see any problems like this (softupdates can be enabled even after init 1)

So any PCBSD developer can say what kind of changes were done around filesystem? I only noticed refresh_fstab script, but I don't think fstab has much to do with it. It looks more like something on kernel level that probably disallows raw write into the disk e.g. even fsck cannot fix errors on read-only mount. It can be only started after booting into single user mode.

[Almindor]

Perhaps it's some option in kernel which in standard FreeBSD kernel isn't set or is set and in PCBSD it's otherwise. I don't think any of the PCBSD guys touched the kernel in any "deep" way.