Date: Sun, 13 Oct 2013 19:38:20 +0000 From: "Thomas Mueller" <mueller6724@bellsouth.net> To: freebsd-questions@FreeBSD.org Cc: David Demelier <demelier.david@gmail.com>, CeDeROM <cederom@tlen.pl> Subject: Re: SU+J Lost files after a power failure Message-ID: <61.07.16944.CA6FA525@cdptpa-oedge02> References: <525A6831.5070402@gmail.com> <CAFYkXjncb3Brge6tHQOwT_zGjBqjDOjWOg7SS1JGmuHhD=ZOeA@mail.gmail.com> <525A748F.3050109@gmail.com>
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> On 13.10.2013 12:16, CeDeROM wrote: > > On 13 Oct 2013 11:30, "David Demelier" <demelier.david@gmail.com > > <mailto:demelier.david@gmail.com>> wrote: > >> Hello there, > >> I'm writing because after a power failure I was unable to log in on my > >> FreeBSD 9.2-RELEASE. The SU+J journal were executed correctly but some > >> files disappeared, including /etc/pwd.db. Thus I was unable to log in. > >> I've been able to regenerate the password database with a live cd but > >> I'm afraid that more files had disappeared somewhere else... > >> I think this is a serious issue, the journal should not truncate files, > >> so something should have gone wrong somewhere.. > >> Any ideas? Should I open a PR > > I had similar issues somewhere around 9.0 - although journal check was > > fine running fsck revealed filesystem inconsistency. I have reported > > this on the list, but it seemed unnoticed..? For me this is serious > > issue as well, if you make PR I will give +1 :-) > > CeDeROM, SQ7MHZ, http://www.tomek.cedro.info > Yes, I've also ran fsck in single user mode after and lot of incorrect > things were corrected, I wait a bit for answers (if any) before sending > a PR. Running fsck in single-user mode may not be sufficient. You may need to run fsck_ffs from a USB-stick installation or live CD. I remember reviving a FreeBSD partition that way, normal root partition not mounted. I once revived a FreeBSD partition with fsck_ffs from a USB-stick installation of NetBSD 5.1_STABLE i386 after FreeBSD couldn't do it. It helps to have a UPS to protect against short power failures and allow graceful shutdown on longer power outages. Tom
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