sh: bad interpreter: Permission denied

Rai

Linux

bash, denied, error, fix, how, interpreter, Linux, pear, pecl, permission, php, red hat, server, xdebug

I recently tried installing xdebug on a RHEL 4 machine, and somehow, the server decided that it should refuse having xdebug installed. As if running a heavy Java app is not enough, I decided to add more processes for the server to run. And it looks like the server has got me:

[root@server src]# pecl install xdebug
downloading xdebug-2.0.5.tgz ...
Starting to download xdebug-2.0.5.tgz (287,621 bytes)
.............done: 287,621 bytes
12 source files, building
running: phpize
Configuring for:
PHP Api Version: 20041225
Zend Module Api No: 20060613
Zend Extension Api No: 220060519
/usr/local/bin/phpize: /tmp/pear/temp/xdebug/build/shtool: /bin/sh: bad interpreter: Permission denied

So, like I always do, I tackle the problem with my handy tool: Google. I found out that this error occurs when /tmp is mounted as read-only (ro). You can check this by looking at the /etc/fstab file and check the /tmp partition.

Okay, now I know what the problem is. How do I get over this?

Lazy that I am, I moved the /tmp/pear directory, and create a symlink to the root directory.

[root@server src]# mv /tmp/pear /tmp/pear-ori
[root@server src]# mkdir /root
[root@server src]# ln -s /tmp/pear /root/tmp/pear

Now that the directory from where the PECL scripts are running is in /root, the installation should go smoothly.

Another way to go around this is to remount the /tmp:

[root@server src]# mount -oremount,exec /tmp

I have not tried the above command because I thought that creating symlink is a safer approach rather than messing with the mounts.

If there are other ways to fix this, let me know using the comment box below.

Jun

Fix Fatal error: Allowed memory size of 8388608 bytes exhausted

Rai

Linux

allowed memory, code, error, exhausted, fatal, installing, Linux, memory, pear, pecl, php, size, xdebug

I was installing xdebug a few days back to one of the production servers when I encountered this beautiful error message:

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 143 bytes) in /usr/share/pear/PEAR/PackageFile/v2/Validator.php on line 1608 Allowed memory size of 8388608 bytes exhausted (tried to allocate 64 bytes)

So my instinct tells me to look inside the php.ini file and find for this line:

memory_limit = 12M

The server’s php.ini file is already set to 256M so I should go look for something else. Luckily, I found this tip from www.agileapproach.com.

Open the file /usr/share/pear/pearcmd.php and add this right after the < ?php line:

@ini_set('memory_limit', '16M');

That should fix the “Fatal error: Allowed memory size” error. I can now resume installing xdebug without any errors.

The reason why editing the php.ini will not fix the issue is because PECL/PEAR does not use the PHP settings, so the PEAR settings needs to be adjusted.

Hope this helps.