[gentoo-user] usb stick files read only

[gentoo-user] usb stick files read only

[Joseph]

I've a usbstick formated with ext2 file system and must have use it on a different computer because when mount the usb stick I get file ownership:
-rw-r--r-- 1 test   users     692926 Jan  7  2012 asterisk_1_4_39.tar.gz
-rw-r--r-- 1 test   users       8502 Jul 21  2011 asterisk-help.txt
-rw-r--r-- 1 joseph  1000      22696 Mar 26 18:27 asus_10-0-0-1_shaw_nvrambak.bin
-rw-r--r-- 1 joseph  1000      22459 Mar 26 16:16 asus_home_10-10-0-1.nvrambak.bin

The ownership should be joseph:users but when I try to change (as root) it I get : Read-only file system
chown -R joseph:users /media/stick/*
chown: changing ownership of `/media/stick/asterisk_1_4_39.tar.gz': Read-only file system
chown: changing ownership of `/media/stick/asterisk-help.txt': Read-only file system

How to deal with it?
I the past changing the ownership always worked from root.

-- 
Joseph

Re: [gentoo-user] usb stick files read only

[Nilesh Govindrajan]

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On Jul 14, 2012 6:48 AM, "Joseph" <syscon780@gmail.com> wrote:
>
> I've a usbstick formated with ext2 file system and must have use it on a
different computer because when mount the usb stick I get file ownership:
> -rw-r--r-- 1 test   users     692926 Jan  7  2012 asterisk_1_4_39.tar.gz
> -rw-r--r-- 1 test   users       8502 Jul 21  2011 asterisk-help.txt
> -rw-r--r-- 1 joseph  1000      22696 Mar 26 18:27
asus_10-0-0-1_shaw_nvrambak.bin
> -rw-r--r-- 1 joseph  1000      22459 Mar 26 16:16
asus_home_10-10-0-1.nvrambak.bin
>
> The ownership should be joseph:users but when I try to change (as root)
it I get : Read-only file system
> chown -R joseph:users /media/stick/*
> chown: changing ownership of `/media/stick/asterisk_1_4_39.tar.gz':
Read-only file system
> chown: changing ownership of `/media/stick/asterisk-help.txt': Read-only
file system
>
> How to deal with it?
> I the past changing the ownership always worked from root.
>
> --
> Joseph
>

The file system probably has errors. See dmesg. Also, run fsck -vfy
/dev/usbdev (replace usbdev with sdc or whatever).

That should fix the problem.

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Re: [gentoo-user] usb stick files read only

[Walter Dnes]

On Fri, Jul 13, 2012 at 07:17:14PM -0600, Joseph wrote

> How to deal with it?
> I the past changing the ownership always worked from root.

  If the mount process detects a problem, it'll set the filesystem as
readonly.  You'll have to back up the data from the stick, repartition
and reformat the stick, and then restore the data.  There's no guarantee
that the data will be 100% correct.

  Try the following...

open a terminal; su to root; execute the command...
tail -f /var/log/messages

insert the USB stick.  Do you see any mention of filesystem panic in the
output?

-- 
Walter Dnes <waltdnes@waltdnes.org>

Re: [gentoo-user] usb stick files read only

[Joseph]

On 07/14/12 00:10, Walter Dnes wrote:
>On Fri, Jul 13, 2012 at 07:17:14PM -0600, Joseph wrote
>
>> How to deal with it?
>> I the past changing the ownership always worked from root.
>
>  If the mount process detects a problem, it'll set the filesystem as
>readonly.  You'll have to back up the data from the stick, repartition
>and reformat the stick, and then restore the data.  There's no guarantee
>that the data will be 100% correct.
>
>  Try the following...
>
>open a terminal; su to root; execute the command...
>tail -f /var/log/messages
>
>insert the USB stick.  Do you see any mention of filesystem panic in the
>output?
>
>-- 
>Walter Dnes <waltdnes@waltdnes.org>

It could be that the USB reader problem, it was giving me problem for some time and not fall apart :-/
Will get a new one tomorrow and try it.

-- 
Joseph

Re: [gentoo-user] usb stick files read only

[Alan McKinnon]

On Fri, 13 Jul 2012 19:17:14 -0600
Joseph <syscon780@gmail.com> wrote:

> I've a usbstick formated with ext2 file system and must have use it
> on a different computer because when mount the usb stick I get file
> ownership: -rw-r--r-- 1 test   users     692926 Jan  7  2012
> asterisk_1_4_39.tar.gz -rw-r--r-- 1 test   users       8502 Jul 21
> 2011 asterisk-help.txt -rw-r--r-- 1 joseph  1000      22696 Mar 26
> 18:27 asus_10-0-0-1_shaw_nvrambak.bin -rw-r--r-- 1 joseph  1000
> 22459 Mar 26 16:16 asus_home_10-10-0-1.nvrambak.bin
> 
> The ownership should be joseph:users but when I try to change (as
> root) it I get : Read-only file system chown -R
> joseph:users /media/stick/* chown: changing ownership of
> `/media/stick/asterisk_1_4_39.tar.gz': Read-only file system chown:
> changing ownership of `/media/stick/asterisk-help.txt': Read-only
> file system
> 
> How to deal with it?
> I the past changing the ownership always worked from root.

The error clearly tells you the file-system is read-only. It does not
say permission denied.

Fix the read-only aspect first



-- 
Alan McKinnnon
alan.mckinnon@gmail.com