Groups > linux.debian.user > #200014

Re: File with weird permissions, impossible to delete

From	Ben Caradoc-Davies <ben@transient.nz>
Newsgroups	linux.debian.user
Subject	Re: File with weird permissions, impossible to delete
Date	2018-09-12 01:20 +0200
Message-ID	<wx06R-dm-1@gated-at.bofh.it> (permalink)
References	<wwPuN-2dQ-1@gated-at.bofh.it> <wwQAy-34k-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 12/09/2018 00:59, Greg Wooledge wrote:
> On Tue, Sep 11, 2018 at 01:52:15PM +0200, Pétùr wrote:
>> I have some files, with weird permissions:
>> # ls -la
>> d-wS--S--T 2 1061270772 2605320832  4096 oct.   7  2412 index.html
> Obvious file system corruption.  Unmount, fsck, re-mount, and then
> be prepared to restore the data from your last good backup if/when
> the fsck failed to repair everything.

I would also use journalctl to look for any i/o errors on the affected 
device.

What hardware and kernel and filesystem? ext4 filesystem corruption is 
rare and usually suggests a hardware fault.

I would run a full hardware test, including CPU and RAM, and a long 
SMART test on the storage if it is capable. SMART self-tests will not 
usually detect drive data transmission errors caused by cable problems, 
but the SMART logs should list the CRC error count which can indicate 
unreliable cables or controller connectors.

I would first identify the *cause* and replace all unreliable hardware 
before bothering to restore from backup. If you have noticed some 
corruption, you likely also have some unnoticed corruption. Continuing 
to use unreliable hardware wastes your time and endangers your data.

Kind regards,

-- 
Ben Caradoc-Davies <ben@transient.nz>
Director
Transient Software Limited <https://transient.nz/>
New Zealand

Thread

File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-11 14:00 +0200
  Re: File with weird permissions, impossible to delete <tomas@tuxteam.de> - 2018-09-11 14:10 +0200
    Re: File with weird permissions, impossible to delete "Thomas Schmitt" <scdbackup@gmx.net> - 2018-09-11 14:20 +0200
  Re: File with weird permissions, impossible to delete Gene Heskett <gheskett@shentel.net> - 2018-09-11 14:20 +0200
  File with weird permissions, impossible to delete Martin <keine-eile@online.de> - 2018-09-11 14:30 +0200
    Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-11 14:50 +0200
      Re: File with weird permissions, impossible to delete Martin <keine-eile@online.de> - 2018-09-11 15:10 +0200
        Re: File with weird permissions, impossible to delete "Thomas Schmitt" <scdbackup@gmx.net> - 2018-09-11 17:00 +0200
          Re: File with weird permissions, impossible to delete Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-09-11 18:20 +0200
            Re: File with weird permissions, impossible to delete Michael Stone <mstone@debian.org> - 2018-09-11 19:00 +0200
      Re: File with weird permissions, impossible to delete David Wright <deblis@lionunicorn.co.uk> - 2018-09-11 15:30 +0200
  Re: File with weird permissions, impossible to delete Erik Christiansen <dvalin@internode.on.net> - 2018-09-11 15:00 +0200
  Re: File with weird permissions, impossible to delete Greg Wooledge <wooledg@eeg.ccf.org> - 2018-09-11 15:10 +0200
    Re: File with weird permissions, impossible to delete Michael Stone <mstone@debian.org> - 2018-09-11 16:50 +0200
      Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-11 17:30 +0200
        Re: File with weird permissions, impossible to delete Martin <keine-eile@online.de> - 2018-09-11 19:40 +0200
          Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-11 19:50 +0200
            Re: File with weird permissions, impossible to delete mick crane <mick.crane@gmail.com> - 2018-09-11 20:30 +0200
            Re: File with weird permissions, impossible to delete Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-09-11 21:10 +0200
            Re: File with weird permissions, impossible to delete Felix Miata <mrmazda@earthlink.net> - 2018-09-12 01:50 +0200
              Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-12 12:10 +0200
          Re: File with weird permissions, impossible to delete Michael Stone <mstone@debian.org> - 2018-09-11 20:30 +0200
          Re: File with weird permissions, impossible to delete David Wright <deblis@lionunicorn.co.uk> - 2018-09-11 22:30 +0200
    Re: File with weird permissions, impossible to delete Ben Caradoc-Davies <ben@transient.nz> - 2018-09-12 01:20 +0200
      Re: File with weird permissions, impossible to delete Gene Heskett <gheskett@shentel.net> - 2018-09-12 03:30 +0200
        Re: red SATA cable corruption (was: File with weird permissions,  impossible to delete) Felix Miata <mrmazda@earthlink.net> - 2018-09-12 03:40 +0200
          Re: red SATA cable corruption (was: File with weird permissions, impossible to delete) Gene Heskett <gheskett@shentel.net> - 2018-09-12 04:40 +0200
            Re: red SATA cable corruption Felix Miata <mrmazda@earthlink.net> - 2018-09-12 05:10 +0200
              Re: red SATA cable corruption Gene Heskett <gheskett@shentel.net> - 2018-09-12 08:10 +0200
                Re: red SATA cable corruption Curt <curty@free.fr> - 2018-09-12 13:40 +0200
                OT high-power radio broadcasting (was Re: red SATA cable corruption) Marty <martyb@ix.netcom.com> - 2018-09-14 20:40 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable corruption) Gene Heskett <gheskett@shentel.net> - 2018-09-14 22:00 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable corruption) Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-09-18 21:20 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable corruption) Gene Heskett <gheskett@shentel.net> - 2018-09-18 22:00 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable  corruption) Brian <ad44@cityscape.co.uk> - 2018-09-18 22:10 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable corruption) Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-09-18 23:20 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable  corruption) Dominic Knight <dominicknight@gmx.com> - 2018-09-18 23:40 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable corruption) Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-09-19 00:20 +0200
                Re: OT high-power radio broadcasting (was Re: red SATA cable  corruption) Martin <keine-eile@online.de> - 2018-09-19 10:20 +0200
        Re: File with weird permissions, impossible to delete Zenaan Harkness <zenaan@freedbms.net> - 2018-09-14 03:10 +0200
  Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-18 15:00 +0200
    Re: File with weird permissions, impossible to delete David Wright <deblis@lionunicorn.co.uk> - 2018-09-18 16:10 +0200
      Re: File with weird permissions, impossible to delete Pétùr <peturvilj@gmail.com> - 2018-09-18 16:20 +0200
        Re: File with weird permissions, impossible to delete David Wright <deblis@lionunicorn.co.uk> - 2018-09-18 17:30 +0200

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