[FUG-BR] Erro no Boot /dev/ada0p2 NO WRITE ACCESS

[Nilton Jose Rizzo]

Em Wed, 15 Feb 2012 21:29:56 -0300, Nilton Jose Rizzo escreveu
> Em Wed, 15 Feb 2012 17:25:56 -0200, Marcelo Gondim escreveu
> > Em 15/02/2012 16:56, Enio Marconcini escreveu:
> > > 2012/2/15 Enio Marconcini<eniorm at gmail.com>
> > >
> > >> salve galera.
> > >> o servidor com freebsd 9.0Stable, estava rodando normalmente, em testes,
> > >> hoje fui reiniciar ele, e durante o boot ficou parado com essa mensagem:
> > >>
> > >> Starting file system checks:
> > >> /dev/ada0p2: NO WRITE ACCESS
> > >> /dev/ada0p2: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY
> > >> Automatic file system check failed; help!
> > >> ERROR: ABORTING BOOT (sending SIGTERM to parent)!
> > >> Feb 15 14:32:44 init /bin/sh on /etc/rc terminated abnormally, going to
> > >> single user mod
> > >> Enter full pathname of shell or RETURN for /bin/sh:
> > >>
> > >> o dispositivo /dev/ada0p2 é o root filesys /
> > >> pressionei enter e entrei com o /bin/sh mesmo, consegui montar as
> > >> partições com mount -a (não retornou erro)
> > >> se eu digitar exit ele sobe para o modo multiuser normalmente e inicia os
> > >> serviços
> > >>
> > >> dei uma busca no google mas não consegui achar nada especificamente para
> > >> este caso... alguém já passou por isso ou sabe o motivo aparente deste
> > >> acontecimento?
> > >>
> > >> --
> > >> *ENIO RODRIGO MARCONCINI*
> > >> @eniomarconcini<http://twitter.com/eniomarconcini>
> > >> *[ $[ $RANDOM % 6 ] == 0 ]&&  rm -rf / || echo "You live"**
> > >> *
> > >> *
> > >> *
> > >> *"H**ave a trouble with windows: reboot!*
> > >> *Have a trouble with unix: be root!"*
> > >>
> > >>
> > > mais um detalhe eu notei que isso acontece depois que eu ajustei o
> > > securelevel=2 no /etc/sysctl.conf
> > > dei boot com securelevel desativado e funcionou normalmente.
> > >
> > >
> > Oi Enio,
> > 
> > Mas tipo toda vez que você inicia com securelevel=2 acontece isso ou 
> > só aconteceu uma vez?
> > -------------------------
> > Histórico: http://www.fug.com.br/historico/html/freebsd/
> > Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
> 
>  Olhando no man:
>  The kernel runs with five different security levels.  Any super-user
>      process can raise the level, but no process can lower it.  The security
>      levels are:
> 
>      -1    Permanently insecure mode - always run the system in 
> insecure mode.           This is the default initial value. --More-
> -(byte 21068)     0     Insecure mode - immutable and append-only 
> flags may be turned off.           All devices may be read or 
> written subject to their permissions.
> 
>      1     Secure mode - the system immutable and system append-only 
> flags may           not be turned off; disks for mounted file 
> systems, /dev/mem and           /dev/kmem may not be opened for 
> writing; /dev/io (if your platform           has it) may not be 
> opened at all; kernel modules (see kld(4)) may           not be 
> loaded or unloaded.
> 
>      2     Highly secure mode - same as secure mode, plus disks may 
> not be           opened for writing (except by mount(2)) whether 
> mounted or not.           This level precludes tampering with file 
> systems by unmounting           them, but also inhibits running 
> newfs(8) while the system is multi-           user.
> 
>            In addition, kernel time changes are restricted to less 
> than or           equal to one second.  Attempts to change the time 
> by more than this           will log the message ``Time adjustment 
> clamped to +1 second''.
> 
>      3     Network secure mode - same as highly secure mode, plus IP 
> packet           filter rules (see ipfw(8), ipfirewall(4) and 
> pfctl(8)) cannot be           changed and dummynet(4) or pf(4) 
> configuration cannot be adjusted.
> 
>      The security level can be configured with variables documented 
> in     rc.conf(8).
> 


   Provavelmente o fsck precisou escrever algo no disc e não pode
   por isso a inconsistencia .... vai ver ele não conseguir
   finalizar todos os processos no sync anterior .... 

-- 
Nilton José Rizzo 
805 Informatica 
Disseminando tecnologias 
021 2413 9786
---
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

http://en.wikipedia.org/wiki/Posting_style