Move path /images

[ITRecords]

Hi,

OS : Debian
Fog Version : 1.5.10

I need to change the location of my images on my second disk.

Thanks for your help.

[george1421]

@ITRecords You need to be a bit more descriptive of the problem you have.

Also provide the output of these commands.
lsblk
df -h
cat /etc/exports

Is this a physical server or virtual?

[ITRecords]

Hi @george1421

Thanks for the response.

you are right it is better to have the right information

1. I installed fog on a vm
2. here is the result

I want my images to be on the sdb1 disk

[george1421]

@ITRecords OK very good. That gives me enough of a picture to help out.

Are you linux familiar or no?

I thought I had a tutorial on it but I didn’t add the part if FOG was already installed. https://forums.fogproject.org/topic/11048/moving-fog-s-images-files-off-the-root-partition-2017-edition

The workflow here will be (You might want to make a snapshot/backup of your fog server. There is a potential ~5% you could lose your images if these steps are not followed correctly)

1. Add your new VMDK file (you have it already with /dev/sdb1)
2. Now make a temp mount point to connect your /dev/sdb1 to
   mkdir -P /tmp/img2
3. Lets just make a flag file so we can know a future step works
   touch /tmp/img2/fog.txt
   Prove that we can see the flag file ls -la /tmp/img2
4. Create a partition on the disk. You have already done this since you have /dev/sdb1
5. Now you need to format the partition with a linux disk format. (I can’t tell from the screen shot if its done or not)
   mkfs.ext4 /dev/sdb1
6. Mount this new parttion onto the mount point we created before.
   mount /dev/sdb1 /tmp/img2
7. Now that the mount is complete (and because the /dev/sdb1 partition is blank we should not see the flag file when we list that directory.
   ls -la /tmp/img2 (you should not see the flag file since the new disk is mounted over the top of /tmp/img2
8. If everything is good here, again run the df -h command. Note the utilization of /dev/sda1 in GB. When we run that command you should see the value will be lower in /dev/sda1 and appear in /dev/sdb1
9. Lets move your current images to the new drive
   mv -vf /images/* /tmp/img2 (you should see a verbose output as all of your images and associated files are moved over to your new disk.
10. Once the move is done confirm that the files are in the new path /tmp/img2
    ls -la /tmp/img2 (You should now see files in this directory, confirm you can see files that start with a period)
    df -h (this should now show that /dev/sda1 size should have decreased by the size of /dev/sdb1)
    ls -la /images (this directory should now be empty)
11. If everything is good lets unmount /dev/sdb1
    umount /tmp/img2
12. Now of a small monetary ($$) contribution I’ll tell you how to get your images back.
13. Just kidding, The last step is to mount your /dev/sdb1 to the /images directory (just like we did in the beginning). Lets edit /etc/fstab. Add the following line to the fstab file
    /dev/sdb1 /images ext4 defaults 0 1
    Now save and exit the fstab file.
14. Last step is to tell linux to mount /dev/sdb1 onto /images.
    mount -a
15. If everything worked you should be able to list /images and see all of your files again.
    ls -la /images
16. Running df -h will now show that your root directory ( / ) is mounted on /dev/sda1 and ( /images ) is mounted on /dev/sdb1
17. If you took a snapshot of the VM in the beginning go ahead and commit the changes.
18. You are done.

[ITRecords]

@george1421 Great. thank you for these very detailed steps

1. I’m doing pretty well on linux.

when I prepared my vm I added this disk without the mounted and in without formatted

Now you need to format the partition with a linux disk format. (I can’t tell from the screen shot if its done or not)
mkfs.ext4 /dev/sdb1

I will test this today. I’ll keep you informed

[ITRecords]

@george1421

I just did the procedure

in interface of Fog

[ITRecords]

@george1421 I would have no permission problem to bring with chmod to write my images. I will take my test tomorrow morning

[ITRecords]

Hi @george1421,

here is my return. I made my capture this afternoon.

towards the end of my capture I got this message

if you have an idea

[george1421]

@ITRecords That’s a permission issue.

So in /images/dev do you see a directory name that looks like a mac address?

[ITRecords]

@george1421 i test this morning. Thanks

[ITRecords]

@george1421 I gave the rights to the frogproject user again and it worked, however I encountered this error during my clone

[luilly23]

@ITRecords
At least in previous versions, it was necessary to create a hidden file in /images and /images/dev called .mntcheck

$touch /images/.mntcheck
$touch /images/dev/.mntcheck

In my server it shows up (ls -la) as :
-rwxwrwxrwx fogproject root 0 jan 8 2019 .mntcheck

[george1421]

@ITRecords for right now lets execute these two commands.

Pause that for one second: Lets make sure the /images is still mounted on /dev/sdb1. Check the df -h command if /dev/sdb1 is still mounted over /images then continue on.

Rerun the fog installer, that should fix the permissions on the directory. I would rather have the fog installer script fix things than brute force a permission on everything.

IF that doesn’t work then run these commands:

lets make sure the files are owned by fogproject.

chown -R fogproject.fogproject /images
chmod -R 775 /images

That should reset the permissions…

[ITRecords]

@george1421 i test a new tomorrow.

Thank you so much. It’s very nice to be able to count on you.

Thank for information @luilly23

[ITRecords]

This post is deleted!

[ITRecords]

@george1421

I disabled the function in the power options the fast startup

during my deployment I added a set username and set password in the fog.deployimage.

Thanks