SD's, fsck, dmesg, freezing, and the Corrupt FAT-fs Post: 302992013

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Operating Systems Linux Fedora SD's, fsck, dmesg, freezing, and the Corrupt FAT-fs Post 302992013 by Beta_OmegaAdinf on Monday 20th of February 2017 03:11:08 PM

02-20-2017

Registered User

SD's, fsck, dmesg, freezing, and the Corrupt FAT-fs

Up until today I haven't had a problem using an SD card with Fedora ( 25 ) but when I went to insert the SD adapter with the micro-sd card this time, the computer froze. It has frozen every time since. It is still reading the card, and after a minute or two of losing control of the GUI and terminal it mounts and I can access the files within the card. It used to mount the card with grace and ease and even performed the kindness of letting me know that the card was mounted successfully at the top of the screen. So what caused this? I don't know. It began today and today I:

Code:

sudo dnf upgrade

And from there I just modified a couple .brs files and ran them so I could go bug-hunting, and, on a side-note, enabled RPM-fusion on my system.

I don't know why any of those would cause the SD card to be read or mounted any differently, so I decided to call dmesg after inserting the card to see what I could find out.

"FAT-fs (mmcblk0p1) Volume was not properly unmounted. Some data may be corrupt. Please run fsck.". Oh so that's the problem. Well problem one led to problem two and three as when I tried to run fsck or e2fsck I got a rather cryptic warning.

/dev/mapper/fedora-root, /dev/sda1, /dev/mapper/fedora-home is mounted

Code:

WARNING!!! The filesystem is mounted. If you continue you ***WILL*** cause ***SEVERE*** filesystem damage.

Well I don't want that, abort... abort!!! When trying to unmount these filesystems so that I could run fsck and see if I could fix the corrupt filesystem I would either get:

umount: /home: ( or /root: ) umount failed: Operation not permitted ( or the target is busy )

and /dev/sda1 flat out doesn't show up.

I'm at a loss. Can anyone explain to me how I would go about fixing the sd card and preventing the temporary full system lock-up? It would be preferred if I didn't have to perform cmd gymnastics or unmount everything on the system to do so, but if it's necessary then I'll do what I must.

Last edited by Beta_OmegaAdinf; 02-20-2017 at 04:18 PM.. Reason: Title missing comma.

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LEARN ABOUT OSX

fsck_cachefs

fsck_cachefs(1M)					  System Administration Commands					  fsck_cachefs(1M)

NAME

       fsck_cachefs - check integrity of data cached with CacheFS

SYNOPSIS

       fsck -F cachefs [-m] [-o noclean] cache_directory

DESCRIPTION

       The  CacheFS  version  of the fsck command checks the integrity of a cache directory.This utility corrects any CacheFS problems it finds by
       default. There is no interactive mode. The most likely invocation of fsck for CacheFS file systems is at boot time from	an  entry  in  the
       /etc/vfstab file. See  vfstab(4).

OPTIONS

       The following options are supported:

       -m	       Check, but do not repair.

       -o noclean      Force a check on the cache even if there is no reason to suspect there is a problem.

EXAMPLES

       Example 1: Using fsck_cachefs to Force a Check on the Cache Directory

       The following example forces a check on the cache directory /cache3:

       example% fsck -F cachefs -o noclean /cache3

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cfsadmin(1M), fsck(1M), mount_cachefs(1M), vfstab(4), attributes(5)

SunOS 5.10							    9 Oct 2002							  fsck_cachefs(1M)