I can't write to usb stick [solved]

I've installed arch on my notebook yesterday. It took a few hours, but I got almost everything working correctly.
My issue is that when I plug in a usb stick, it gets automatically mounted, but I can't write to it.
I had the same issue with my ntfs data partition, but I solved it by adding an entry to /etc/fstab.
Unfortunately that won't be an efficient solution for usb sticks, since their partition type might vary.
/dev/sda1: LABEL="arch" UUID="6c7ecf62-2ffb-4bfe-9af0-39d7cdb89751" TYPE="ext4" PARTUUID="000e19e1-01"
/dev/sda2: LABEL="swap" UUID="ff87fb8b-773b-45ca-9198-c2abf9a1a017" TYPE="swap" PARTUUID="000e19e1-02"
/dev/sda3: UUID="AAACDC9DACDC657B" TYPE="ntfs" PARTUUID="000e19e1-03"
/dev/sda4: LABEL="Dados" UUID="EC60740C6073DC30" TYPE="ntfs" PARTUUID="000e19e1-04"
/dev/sdb1: UUID="2013-11-01-08-10-26-00" LABEL="ARCH_201311" TYPE="iso9660" PTUUID="0d738582" PTTYPE="dos" PARTUUID="0d738582-01"
[hfluz@hfluz-arch ~]$ sudo fdisk -l
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000e19e1
Device Boot Start End Blocks Id System
/dev/sda1 2048 398753791 199375872 83 Linux
/dev/sda2 398753792 402948095 2097152 82 Linux swap / Solaris
/dev/sda3 402948096 1399447551 498249728 7 HPFS/NTFS/exFAT
/dev/sda4 1399447552 1953519615 277036032 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 14.8 GiB, 15879634944 bytes, 31014912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0d738582
Device Boot Start End Blocks Id System
/dev/sdb1 * 0 1056767 528384 0 Empty
/dev/sdb2 84432 147919 31744 ef EFI (FAT-12/16/32)
My usb stick is /dev/sdb.
Anyone already had the same problem?
Last edited by hfluz (2013-11-11 16:40:38)

MW wrote:Check your groups, you should be in the storage group.
https://wiki.archlinux.org/index.php/Users_and_Groups
I don't think that the storage group covers this. All USB storage devices that I have seem to come up as being part of the disk group. You should really not make your user part of the disk group.
If you read the post, and saw the info provided by the OP, you would see that he/she is trying to write to an iso, which is read-only.

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Cannot Write to USB Stick

I can copy from USB sticks but cannot write to USB stick.
I have tried various USB sticks to ensure I wasn't using an old stick or a damaged stick but nothing works.
I have tried formatting the sticks differently, i.e. FAT32, Mac OS Extended etc but still doesn't work.
The files I am trying to copy are only 200KB onto an empty, newly formatted 16GB stick.
I have checked and permissions for the stick is Read/Write.
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Does nobody read OP anymore? USB had the Arch installer on it, which involves some non-standard partitioning.
@radoslav192
Manually re-partition your thumb drive with fdisk, etc., then format the partition.
Edit: had to remove the log from my eye.
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Microsoft Marketing should care for customer feedback on their consumer products, e.g.
Windows & Office.
Have had Windows 8 … went back to Windows 7.

Hi,
We can use USB parser in WDK8 or 8.1.
To install USB ETW parsers:
1.Determine whether you have 32-bit Windows or 64-bit Windows: ◦Open the Start Menu.
◦Right click Computer and select Properties.
◦Look at the System type field. (Note: 32-bit corresponds to “x86” for the downloads).
2.Install Netmon:
◦Go to the bottom of the Quick details on the Netmon 3.4 download page and press the Download button for your system type.
◦Download and run the exe. When it asks about setup type, Typical is fine.
3.Download and install the Windows Driver Kit for Windows 8.
4.Allow execution of PowerShell scripts:
◦Open the Start screen, type "powershell", right click on the Windows PowerShell result, and select Run as administrator.
◦Type or paste the following command:
Set-ExecutionPolicy RemoteSigned -Force
4.Close the PowerShell window
5.Open a PowerShell window (you don't need to Run as administrator) and run the following commands. Adjust the path if you installed the kit to a different location:
cd "C:\Program Files (x86)\Windows Kits\8.0\Tools\x86\Network Monitor Parsers\usb"
..\NplAutoProfile.ps1
Now you're set up! You can now launch Netmon and open an .etl trace by selecting File -> Open -> Capture.
You can also use OneDrive to upload the trace file in forum so that we can help you analyze your problem.
If you have any feedback on our support, please click
here
Alex Zhao
TechNet Community Support

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Filesystem is NTFS:
Disk /dev/sdb: 1000.2 GB, 1000204885504 bytes, 1953525167 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
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markmc78 wrote:
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Last edited by jcci (2009-10-31 04:23:33)

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<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE pkconfig PUBLIC "-//freedesktop//DTD PolicyKit Configuration 1.0//EN"
"http://hal.freedesktop.org/releases/PolicyKit/1.0/config.dtd">

<config version="0.1">
<match action="org.freedesktop.hal.storage.mount-removable">
<return result="yes" />
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<match action="org.freedesktop.hal.storage.eject-removable">
<return result="yes" />
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<match action="org.freedesktop.hal.storage.mount-fixed">
<return result="yes"/>
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Trapdoor

With adding
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writing on the stick works, but he files are not displayed on the stick if i try to play them. I think it has something to do with the dmesg output
usb-storage: device found at 4
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Php/mysql: can't write to mysql database [SOLVED]

I'm writing a login script using php and mysql. I got it to work on my server about a week ago, and then I set up apache, php and mysql on my netbook so that I could take my code with me and test it. Now it doesn't work. My registration script doesn't write to the mysql database but has no errors. Here is register.php:
<?php
define("DB_SERVER", "localhost");
define("DB_USER", "root");
define("DB_PASS", "swordfish");
define("DB_NAME", "users");
define("TBL_USERS", "users");
$connection = mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error());
mysql_select_db(DB_NAME, $connection) or die(mysql_error());
function addUser($username, $password)
global $connection;
$password = md5($password);
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echo("query: $q<br />");
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echo("$result<br />");
if (isset($_POST["reg"]))
addUser($_POST["username"], $_POST["password"]);
echo("<a href='index.php'>click here to login</a>");
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<html>
<head>
<title>Register</title>
</head>
<body>
<form method="Post" name="login">
<input type="text", name="username" /> Username<br />
<input type="text", name="password" /> Password<br />
<input type="submit" name="reg", value="Register" />
</form>
</body>
</html>
and here is the output (without the form):
adding lexion,6f1ed002ab5595859014ebf0951522d9
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$ mysql -p -u root
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version 5.1.42 Source distribution
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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-> ^D
-> Bye
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Last edited by Lexion (2010-01-10 19:04:15)

What is wrong with your PHP? Why do you think it is failing? An INSERT query doesn't return anything. Also, it's a good idea to specify which fields you are inserting into, unless you want to have to provide something for every field (tedious for tables with many fields with default values). eg:
$q = "INSERT INTO `" . TBL_USERS . "`(`username`, `password`) VALUES ('$username', '$password')";
As for your experiment with the mysql prompt; queries have to end with a semicolon. PHP is nice and hides that little detail from you.
edit: Also, you're echoing text out before the HTML starts. That won't produce valid HTML. I also noticed a few other things which I corrected; look at my comments:
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define("DB_SERVER", "localhost");
define("DB_USER", "root");
define("DB_PASS", "swordfish");
define("DB_NAME", "users");
define("TBL_USERS", "users");
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mysql_select_db(DB_NAME, $connection) or die(mysql_error());
function addUser($username, $password)
global $connection;
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// echo("adding $username,$password<br />"); - Don't echo stuff before HTML starts.
// Also, clean up user-supplied data before plugging it into a query unless you want to be vulnerable to SQL injection.
$cleanusername = mysql_real_escape_string($username, $connection);
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// echo("query: $q<br />");
$result = mysql_query($q, $connection);
// echo("$result<br />"); - This won't do anything; in addition to INSERT queries not returning anything, the $result variable doesn't contain the results of the query, it's a pointer to them for use with mysql_result().
?>
<html>
<head>
<title>Register</title>
</head>
<body>
<?php
if (isset($_POST["reg"]))
addUser($_POST["username"], $_POST["password"]);
echo("<a href='index.php'>click here to login</a>");
?>
<form method="Post" name="login">
<input type="text" name="username" /> Username<br />
<input type="text" name="password" /> Password<br />
<input type="submit" name="reg" value="Register" />
</form>
</body>
</html>
<?php
mysql_close($connection); // Not strictly needed, as PHP will tidy up for you if you forget.
?>
Last edited by Barrucadu (2010-01-10 17:34:20)

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