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Root mount error after upgrade to FreeBSD 8 |
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After upgrading our backup server from 7.2 to Freebsd 8 it refused to boot as it couldn't mount root device.
ROOT MOUNT ERROR:
If you have invalid mount options, rebott, and first try the following from
the loader prompt:
set vfs.root.mountfrom.options=rw
and the remove invalid mount options from /etc/fstab.
Loader variables:
vfs.root.mountfrom=ufs:/dev/da6s1a
vfs.root.mountform.options=rw
[manual boot prompt]
mountroot> ?
List of GEOM managed disk devices:
Loader variables:
....
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Using mysql socket in apache jail |
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Confining apache and mysql in separate jails creates interesting problem - how to make them communicate with each other. TCP works, but is much slower than using mysql socket - some measurements show up to 10 times difference. If you add current FreebSD syncache bug that causes packet drops in TCP, this becomes much needed option.
To be able to communicati trough unix sockets both jails must have access to the same directory. For start create required directories:
- In parent system create subdirectory /usr/mysqltmp
- In each jail create subdirectory /mysqltmp
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