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Date:      Sat, 30 Nov 2002 10:24:04 -0800
From:      Manfred Antar <null@pozo.com>
To:        "Daniel C. Sobral" <dcs@newsguy.com>, msch@snafu.de
Cc:        freebsd-current@FreeBSD.ORG
Subject:   Re: dump(8) + UFS2
Message-ID:  <5.2.0.9.2.20021130101829.00aa4d80@pozo.com>
In-Reply-To: <3DE8B580.A135CFE3@newsguy.com>
References:  <200210281746.55442.msch@snafu.de>

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At 10:56 AM 11/30/2002 -0200, Daniel C. Sobral wrote:
>Matthias Schuendehuette wrote:
>> 
>> Hello,
>> 
>> it seems to me that 'dump' (8) is not able to dump UFS2 Filesystems.
>> 
>> First it shows an extraordirarily large number of estimated tape blocks
>> for my tiny /var-partition and after that it dumps core while trying to
>> dump my not so tiny /usr partition.
>> 
>> Is this a known issue? Are there any recommendations how to backup UFS2
>> filesystems reliably?
>
>Well, I once restored something to UFS2 (converting my partitions...).
>It was quite funny to see 102.7% was complete, and it would end in 0
>(minutes, one assume).

I just converted my /var and /usr partitions to UFS2 on an i386 machine
and tried to do a dump of /var (500mb -- 37mb used)

(disklabel)594}dump 0fua /dev/nsa0 /dev/da0s1e
  DUMP: Date of this level 0 dump: Sat Nov 30 10:16:44 2002
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/da0s1e (/var) to /dev/nsa0
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: read error from /dev/da0s1e: Input/output error: [block -7236860474136607228]: count=8192
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607228]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607227]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607226]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607225]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607224]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607223]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607222]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607221]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607220]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607219]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607218]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607217]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607216]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607215]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607214]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -7236860474136607213]: count=512
  DUMP: corrupted directory, inumber 5169
  DUMP: read error from /dev/da0s1e: Input/output error: [block -3126763002007185064]: count=8192
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185064]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185063]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185062]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185061]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185060]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185059]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185058]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185057]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185056]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185055]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185054]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185053]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185052]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185051]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185050]: count=512
  DUMP: read error from /dev/da0s1e: Input/output error: [sector -3126763002007185049]: count=512
  DUMP: corrupted directory, inumber 5169
  DUMP: corrupted directory, inumber 5169
  DUMP: corrupted directory, inumber 5596
  DUMP: read error from /dev/da0s1e: Input/output error: [block -8093102966837667782]: count=8192
  DUMP: More than 32 block read errors from /dev/da0s1e
  DUMP: This is an unrecoverable error.
  DUMP: Do you want to attempt to continue?: ("yes" or "no") no
  DUMP: The ENTIRE dump is aborted.

I guess dump is not ready for UFS2

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