Kernel Update fails ... Oh no, not again!

[sudburr]

Server: CentOS 7.4
FOG: 1.4.4

Ye olde error when updating kernel. (currently 4.11.0)

Type: 2, File: /var/www/html/fog/lib/fog/fogftp.class.php, Line: 707, Message: ftp_put(): Could not create file., Host: 172.22.48.14, Username: fog

I have referred to Troubleshoot FTP and followed all steps.

I have updated the OS and re-installed FOG as well but to no avail.

From /var/log/httpd/error_log

PHP Fatal error:  Uncaught Error: Call to a member function lastInsertId() on boolean in /var/www/html/fog/lib/db/pdodb.class.php:443\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogcontroller.class.php(527): PDODB->insertId()\n#1 /var/www/html/fog/lib/fog/hookmanager.class.php(59): FOGController->save()\n#2 /var/www/html/fog/lib/fog/fogpagemanager.class.php(82): HookManager->processEvent('SEARCH_PAGES', Array)\n#3 [internal function]: FOGPageManager->__construct()\n#4 /var/www/html/fog/lib/fog/fogbase.class.php(457): ReflectionClass->newInstanceArgs(Array)\n#5 /var/www/html/fog/management/index.php(23): FOGBase::getClass('FOGPageManager')\n#6 {main}\n  thrown in /var/www/html/fog/lib/db/pdodb.class.php on line 443, referer: http://xyzfog/fog/management/index.php?node=home

AH00170: caught SIGWINCH, shutting down gracefully

PHP Warning:  ftp_mkdir(): Create directory operation failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 492, referer: http://xyzfog/fog/management/index.php?node=about&sub=kernel&file=aHR0cHM6Ly9mb2dwcm9qZWN0Lm9yZy9rZXJuZWxzL0tlcm5lbC5Ub21FbGxpb3R0LjQuMTMuNC42NA==&arch=64

PHP Warning:  ftp_rename(): RNFR command failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 769, referer: http://xyzfog/fog/management/index.php?node=about&sub=kernel&file=aHR0cHM6Ly9mb2dwcm9qZWN0Lm9yZy9rZXJuZWxzL0tlcm5lbC5Ub21FbGxpb3R0LjQuMTMuNC42NA==&arch=64

PHP Warning:  ftp_put(): Could not create file. in /var/www/html/fog/lib/fog/fogftp.class.php on line 707, referer: http://xyzfog/fog/management/index.php?node=about&sub=kernel&file=aHR0cHM6Ly9mb2dwcm9qZWN0Lm9yZy9rZXJuZWxzL0tlcm5lbC5Ub21FbGxpb3R0LjQuMTMuNC42NA==&arch=64

[george1421]

@sudburr Does the linux user fog have write permissions to /var/ww/html/fog/service/ipxe and all files under?

[sudburr]

Would you please type out the exact commands you want to be tried?

[george1421]

@sudburr lets start out with

ls -la /var/www/html/fog/service/ipxe

bzImage needs to be owned by fog or have world write access.

[Sebastian Roth]

@sudburr said in Kernel Update fails ... Oh no, not again!:

PHP Fatal error: Uncaught Error: Call to a member function lastInsertId…

To me this sounds as if there is an issue with the database credentials as well.

[sudburr]

Heh… I’ve lost contact with both servers displaying this problem.

[sudburr]

@george1421 said in Kernel Update fails ... Oh no, not again!:

ls -la /var/www/html/fog/service/ipxe

results:

drwxr-xr-x. 2 fog    apache     4096 Jan 30 11:13 .
drwxr-xr-x. 3 apache apache     4096 Jan 30 11:13 ..
-rw-r--r--. 1 fog    apache     1966 Jan 30 11:13 advanced.php
-rw-r--r--. 1 fog    apache    16272 Jan 30 11:13 bgdark.png
-rw-r--r--. 1 fog    apache    21280 Jan 30 11:13 bg.png
-rw-r--r--. 1 fog    apache      922 Jan 30 11:13 boot.php
-rw-r--r--. 1 fog    apache  7601536 Jan 30 11:13 bzImage
-rw-r--r--. 1 fog    apache  7465280 Jan 30 11:13 bzImage32
-rw-r--r--. 1 fog    apache   234697 Jan 30 11:13 grub.exe
-rw-r--r--. 1 fog    apache      592 Jan 30 11:13 index.php
-rw-r--r--. 1 fog    apache 18646084 Jan 30 11:13 init_32.xz
-rw-r--r--. 1 fog    apache 19605632 Jan 30 11:13 init.xz
-rw-r--r--. 1 fog    apache    25340 Jan 30 11:13 memdisk
-rw-r--r--. 1 fog    apache  1839104 Jan 30 11:13 memtest.bin
-rw-r--r--. 1 fog    apache    20976 Jan 30 11:13 refind.conf
-rw-r--r--. 1 fog    apache   205192 Jan 30 11:13 refind.efi

[jstephen]

I’m having the exact same trouble. I’ve also worked through all of the steps in Troubleshoot FTP, and I also updated Fog today and applied all updates to the server OS (Debian Jesse with kernel 3.16.51-3).

I noticed the problem updating the kernel from the web interface where I get these errors:
Warning: ftp_mkdir(): Create directory operation failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 492

Warning: ftp_rename(): Rename failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 769
##OK##

All of my permissions look fine - fog has access to everything it needs to as far as I can tell! - and the password for the fog account is the same in all locations.

[Sebastian Roth]

@jstephen Which version of FOG do you use?

@sudburr Sorry for not getting back yet. Just couldn’t get to a conclusion or find a good answer. Maybe it’s a SElinux issue in your case? Have you got that disabled? Running the command getenforce shows what on your FOG server?

[jstephen]

@sebastian-roth I’ve gotten the same thing on 1.4.2, 1.4.4 and now on 1.5.0-RC-11

[george1421]

@sebastian-roth FWIW I did get the same thing on my product server 1.4.4, in my case I attributed it to my fog server not having direct internet access. Then I did some stuff and it downloaded a 0 byte file for bzImage so I just updated it by hand. I did ensure that the linux user fog had access to the ipxe directory. I was going to play a bit this weekend to see if I could figure something else.

[Sebastian Roth]

@jstephen @george1421 @sudburr Can you all please try the following by hand:

shell> sudo cp /var/www/fog/service/ipxe/bzImage /var/www/fog/service/ipxe/testfile
shell> sudo chown fog:apache /var/www/fog/service/ipxe/testfile
shell> sudo chmod 644 var/www/fog/service/ipxe/testfile
shell> sudo apt-get install ftp
shell> ftp
ftp> open 127.0.0.1
Connected to 127.0.0.1.
220 (vsFTPd 3.0.3)
Name (127.0.0.1:roth): fog
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> pwd
257 "/home/fog" is the current directory
ftp> mkdir /var/www/fog/service/ipxe/backup
257 "/var/www/fog/service/ipxe/backup" created
ftp> rename /var/www/fog/service/ipxe/testfile /var/www/fog/service/ipxe/backup/testfile
350 Ready for RNTO.
250 Rename successful.
ftp> quit

[george1421]

@sebastian-roth

Auto update via fog-gui works on FOG-Pi server (raspbian) that has direct internet access.

Production fog server does not work even after making sure directory permissions are set. bzImage created by zero bytes.

The create directory failed when executing on production server. The backup directory already existed. Peeking inside it has content.

reviewing the apache error log netted this info.

[Sat Feb 03 08:28:25.466950 2018] [:error] [pid 21617:tid 139862824957696] [client 10.96.151.50:62795] PHP Warning:  ftp_mkdir(): Create directory operation failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 492, referer: http://192.168.1.53/fog/management/index.php?node=about&sub=kernel&file=aHR0cHM6Ly9mb2dwcm9qZWN0Lm9yZy9rZXJuZWxzL0tlcm5lbC5Ub21FbGxpb3R0LjQuMTMuNC42NA==&arch=64
[Sat Feb 03 08:28:25.475420 2018] [:error] [pid 21617:tid 139862824957696] [client 10.96.151.50:62795] PHP Warning:  ftp_rename(): RNFR command failed. in /var/www/html/fog/lib/fog/fogftp.class.php on line 769, referer: http://192.168.1.53/fog/management/index.php?node=about&sub=kernel&file=aHR0cHM6Ly9mb2dwcm9qZWN0Lm9yZy9rZXJuZWxzL0tlcm5lbC5Ub21FbGxpb3R0LjQuMTMuNC42NA==&arch=64

The backup directory now contains

-rwxr-xr-x 1 fog fog    0 Feb  3 08:10 bzImage_20180203_082824

The ipxe directory now contains

-rwxr-xr-x 1 fog  fog         0 Feb  3 08:28 bzImage

Now may issue may be that the production fog server doesn’t have direct internet access but must pass through a proxy server.

Observations executing the script.

1. Of course kernel updates on raspbian.
2. On raspbian the ower of the file is fog:www-data not fog:apache that may cause problems for others executing the script based on the FOG server’s OS.
3. On raspbian /var/www/fog/service/ipxe is correct on centos the correct path is /var/www/html/fog/service/ipxe.
4. With corrections the script executed correctly on both raspbian and centos.

[Sebastian Roth]

@george1421 said in Kernel Update fails ... Oh no, not again!:

Now may issue may be that the production fog server doesn’t have direct internet access but must pass through a proxy server.

But the code should actually use proxy settings made in the web UI (code ref) so I am wondering what goes wrong here as it does not seem to return 4xx HTTP code and therefore the kernel update page does not notice something went wrong. Do you have access to the proxy logs?

On the other hand I wondered about the zero bytes file size as there is a check in the code. Unfortunately there was an issue with the file size check which I just fixed in the current working branch (ref).

... ftp_mkdir(): Create directory operation failed...

As well I wonder about why you all see this. There is a check before mkdir that should prevent from trying so if the directory already exists. From my point of view that should work correctly.

On raspbian /var/www/fog/service/ipxe is correct on centos the correct path is /var/www/html/fog/service/ipxe.

Thanks for pointing that out. I should have made my test commands not specific to debian/ubuntu without mentioning.

[sudburr]

@sebastian-roth sestatus results

SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   permissive
Mode from config file:          permissive
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Max kernel policy version:      28

This is the same as on all of our other fog servers.

[sudburr]

@sebastian-roth said in Kernel Update fails ... Oh no, not again!:

rename /var/www/fog/service/ipxe/testfile /var/www/fog/service/ipxe/backup/testfile

Completed the ftp steps detailed and update via GUI continues to fail.

[george1421]

@sudburr if selinux is enabled, then you will have issues capturing images for sure. You need to configure selinux to permissive. On centos its in /etc/selinux and there is a config file in there you need to edit so it says permissive. Then reboot your FOG server.

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=permissive
# SELINUXTYPE= can take one of three two values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

[sudburr]

SELinux is already configured and functions properly for all servers. Imaging is not the problem. The problem is updating the kernel on 2 of 18 physical servers.

[jstephen]

@sebastian-roth Following your steps, I get this:

ftp> mkdir /var/www/fog/service/ipxe/backup
550 Create directory operation failed.

It seems that I am able to rename the files though.

I also notice that all of the other files in the ipxe folder are owned by fog:www-data; however, the files the Fog is trying to create for the new kernel are owned by fog:fog. Could this be part of the problem?

One more observation: the fog GUI is reporting that the operation failed to ftp_mkdir and ftp_rename, however the file exists in the ipxe directory and has 8069680 bytes which is probably about right, right? Is the file being copied elsewhere also and failing there? Or, is the GUI error… in error?

[Sebastian Roth]

@sudburr said in Kernel Update fails ... Oh no, not again!:

Completed the ftp steps detailed and update via GUI continues to fail.

Can you please post a listing or picture of the commands and output?

@jstephen said:

ftp> mkdir /var/www/fog/service/ipxe/backup
550 Create directory operation failed.

This might be due to the fact that the directory already exists. See with ls -al /var/www/fog/service/ipxe on the command line.