Unable to change permission of a drive or it's contents

Linux Support
1

I have been using Ktorrent and had a specific folder where .torrent files and partial downloads and complete downloads are stored, each in their own folder. That was until 2 days ago when Ktorrent was failing to save the data.

I have discovered that somehow, the permissions have changed. I know it’s not me as I have had no reason to change any permissions. I have tried to change permissions back to me but I get an error report.


http://i.imgur.com/uyVmvFz.png

This is a screenshot of the drives, drive EXT-01 will not let me change permissions.


http://i.imgur.com/USpfqEj.png

I’ve also been looking into changing permission via the terminal but I can’t seem to find the correct way to do it.

(p.s. Can anyone recommend a decent FREE file sharing site with decent size pictures)

[EDIT]
Sorry Mark. I followed your instructions and this is the smallest I can get.

2

image hosting site:
https://imgur.com
tutorial on how to use, here:
https://forum.peppermintos.com/index.php/topic,4036.msg40426.html#msg40426

Can’t give you a command to change permissions until we know where the folder is ?

3

I don’t get given that information when using Dolphin to change permission, just the dialog box informing me I am unable ‘Could not change permissions for /…A8930469CF69B99230E070E61F02A36FB.’

Is all I get.

what’s the way to do it via terminal?
It’s path is ‘/media/EXT-01/’

4

Assuming your username is “pooky”…

To make that directory read/write/execute by everyone:

sudo chmod 777 /media/EXT-01

then to take ownership of the contents (recursively):

sudo chown -R pooky:pooky /media/EXT-01
5

I get this result
pooky2483@Kubuntu-1404-LTS-PhenomII:/media/EXT-01$ sudo chmod 777 /media/EXT-01/
[sudo] password for pooky2483:
chmod: changing permissions of ‘/media/EXT-01/’: Read-only file system
pooky2483@Kubuntu-1404-LTS-PhenomII:/media/EXT-01$

6

Okay that disk/partition probably has file system errors so has been remounted read only.

What’s the output from:

mount

Okay for large images (from imgur) on this forum make it like:

[url=http://i.imgur.com/USpfqEj.png]
http://i.imgur.com/USpfqEj.png
[/url]

which will limit the width to 700 here, but make the image a clickable link to the image hosted by imgur … just in case you need to view it full size.

I’ve fixed the ones in your first post :wink:

7 
mount

/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
/dev/sdc1 on /media/INT-01 type ext4 (rw,nosuid,nodev)
/dev/sdb1 on /media/INT-02 type ext4 (rw,nosuid,nodev)
/dev/sdd1 on /media/EXT-01 type ext4 (rw,nosuid,nodev)
/dev/sde1 on /media/EXT-04 type ext4 (rw,nosuid,nodev)
/dev/sdf1 on /media/EXT-05 type ext4 (rw,nosuid,nodev)
/dev/sdg1 on /media/EXT-06 type ext4 (rw,nosuid,nodev)
/dev/sdi1 on /media/EXT-02 type ext4 (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)

You’ll notice EXT-03 is not there, that’s because the power supply is duff.
Thanks for the Imgur image info, I’ll have a look at it :slight_smile:

8

Try running:

sudo umount /media/EXT-01

then as long as that command finishes without error:

sudo fsck /dev/sdd1

then reboot and see if it’s writeable

9

sudo umount /media/EXT-01

Came up with
umount: /media/EXT-01: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8 ) or fuser(1)) * Space added after the 8 as it produces a smiley

Somethings strange as, if I (pooky2483) can’t write to it, what IS?

10

Have you tried simply rebooting ?

Is the torrent app still attempting to write to it ?

This might tell you what’s keeping the device busy

sudo lsof | grep EXT-01

or maybe

sudo lsof | grep sdd1
11

It was TOR. I’m just going to stop TOR and go back to previous commands you posted.
Ktorrent is not running as it was failing to rite to I stopped it.

I’ll come back with the results in a min…

12

Looks like it’s sorted, I’m currently changing permission of EXT-01.
Thanks Mark :slight_smile:

13

You’re welcome :slight_smile:

14

I left Ktorrent running last night and the drive permission problem is back, unable to write, also root is unable to delete (after opening Dolphin as root - sudo dolphin).

15 
sudo fsck /dev/sdd1

[spoiler]fsck from util-linux 2.20.1
e2fsck 1.42.9 (4-Feb-2014)
EXT-01: recovering journal
EXT-01 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Deleted inode 204210178 has zero dtime. Fix? yes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences: -(816873480–816874140)
Fix? yes
Free blocks count wrong for group #24929 (31422, counted=32083).
Fix? yes
Free blocks count wrong (637802043, counted=644722240).
Fix? yes
Inode bitmap differences: -204210178
Fix? yes
Free inodes count wrong for group #24928 (8156, counted=8157).
Fix? yes
Free inodes count wrong (236204456, counted=236205494).
Fix? yes

EXT-01: ***** FILE SYSTEM WAS MODIFIED *****
EXT-01: 125514/236331008 files (0.7% non-contiguous), 300576960/945299200 blocks[/spoiler]

I bet the drive’s failing :frowning:

16

Not necessarily.

17

I hope not but just in case, I’m clearing the contents onto other drives.

18

Never hurts to have backups if the stuff is important to you, right :slight_smile:

19

What’s the easiest & cheapest backup system as I have a total of 30TB external storage.

20

LOL … are you after s 30TB backup solution on the cheap ;D
(depending on your definition of “cheap”, that’s unlikely to happen)

Or are you just looking for a software backup solution that can utilise your 30TB storage for the backups ? … if so, what do you want to backup ?