can't download any image - write failed due to "bad file descriptor"

Submitted by ghomem on Mon, 04/08/2013 - 13:56

I installed Cloudmin Pro and added

/home/virtual/VMStorage as an Image storage location /home/virtual/VM as a Disk image directory

I don't understand the difference between these two concepts. Can you clarify?

Anyway, when I try to download an image using Cloudmin Settings -> New System Images I allways get the error you can see in the attachment "bad file descriptor".

Even though Virtualmin runs as root somehow it fails to write to /home/virtual. We need Cloudmin to use /home/virtual since your standard partitioning allocates few space to /var and most of the space to /home.

Can you advise on this?

Status: 
Closed (fixed)

Comments

Submitted by JamieCameron on Mon, 04/08/2013 - 13:59

Do the directories /home/virtual and /home/virtual/VM exist? If they don't that could be the cause of this error ..

Submitted by ghomem on Mon, 04/08/2013 - 14:03

No, I thought the system would create them.

Could you briefly explain the difference between these directories (I'm used to VMware where the VM is fully contained in a single directory) so that I create them manually, with the right names and retest?

Submitted by JamieCameron on Mon, 04/08/2013 - 14:20

An "image storage location" is where VM images (which are used as templates to create new VMs) are stored. The default is /var/webmin/server-manager , but you can add additional directory (typically on remote systems) to replicate your image files. If you are low on space on /var , a better solution that adding a new image location is to move /var/webmin/server-manager to elsewhere, and then symlink it to the new location.

A "disk image directory" is where the disk images for a running VM are stored. If you just want to change this from the default of /kvm , you can do this at Host Systems -> KVM Host Systems - there is no need to add additional directories.

Submitted by ghomem on Mon, 04/08/2013 - 15:06

Great! Now the images whose download failed can't be downloaded as they say they are already being downloaded. What can I do to reset their state and force the download?

Submitted by JamieCameron on Mon, 04/08/2013 - 15:27

Check if there is a process matching get_images.cgi still running on your system, and if so kill them.

Submitted by ghomem on Mon, 04/08/2013 - 15:29

No, there is no such process.

[root@localhost virtual]# ps -ef |grep get_ root 17666 10123 0 14:25 pts/0 00:00:00 grep get_ [root@localhost virtual]# ps -ef |grep cgi root 17668 10123 0 14:25 pts/0 00:00:00 grep cgi [root@localhost virtual]#

Submitted by JamieCameron on Mon, 04/08/2013 - 15:33

If if that doesn't work, go to the /var/webmin/server-manager directory and delete all files whose names contain the ID of the image that only partially downloaded.

Submitted by ghomem on Mon, 04/08/2013 - 15:43

That worked. Thanks for your support.