Re: File with weird permissions, impossible to delete
- Date: Wed, 12 Sep 2018 11:13:58 +1200
- From: Ben Caradoc-Davies <ben@xxxxxxxxxxxx>
- Subject: Re: File with weird permissions, impossible to delete
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
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.
Ben Caradoc-Davies <ben@xxxxxxxxxxxx>
Transient Software Limited <https://transient.nz/>