Problem with enabling soft-updates via tunefs
skoval at mail.mipt.ru
Tue Mar 21 23:39:12 UTC 2006
Several weeks ago I tried enabling soft-updates on / partition of active
file system in multi-user mode via
tunefs -n enable /dev/ar0s1a
having remounted it read-only.
After that I just rebooted the system and according to mount
soft-updates were enabled. (I tried remounting / partition to RW w/o
rebooting but mount showed soft-updates were disabled).
I was rather satisfied that it is possible w/o making newfs, but today I
the same actions didn't work on another system (almost the same hardware
except MB). (I even tried them on the first one, but there everything
still worked fine).
On second system I got an error something like:
/dev/ar0s1a: can't write superblock information
(to my regret I can't remember exactly but I can repeat if necessary)
Differences between system:
1) / partition is the first on disk (256 Mb)
2) FreeBSD-5.4-RELEASE-p8 (with patch fixing soft-updates' problem with
inodes); link to patch http://kovalev.com.ru/softupdates-5.4R-p8.diff.txt
3) Custom kernel (i can provide kernel configuration if necessary)
1) / partition was the only partition on disk (approximately 65 Gb);
there was also second 2 Gb swap partition
3) GENERIC kernel
Is there a possibility to enable soft-updates on large / partitions at
all or there may be something else?
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