Moving jails to new partition

monarckco

monarckco

I ran out of space in my /usr slice so I copied everything to a bigger hard drive using RAID.
I then followed several tutorials trying to expand /usr with # growfs but always got an error. So I decided to instead create a new partition with the empty space and move data there. The only problem is that all of the data I need to move there are inside of jails. What is the best way of tackling this problem?

I tried to create a symlink, but of course that failed since jails can't see outside of themselves. I also tried copying everything from one of the jails to the new mount location.

# cp -pRv /usr/jails/jail_1 /mnt/new/jails/

I also did the above for the basejail, flavours, and new_jail directories originally located in /usr/jails/. I then edited the /usr/local/etc/ezjail/jail_1 configuration file to point towards the new directory that I copied everything to. I then tried starting the jail, but got the following error:
Code: 
[cmd="#"]ezjail-admin onestart jail_1[/cmd]
Configuring jails:.
Starting jails: cannot start jail "jail_1": 
jail: execv: /bin/sh: No such file or directory

I know that I could delete the newly created partition (240GB), split it up into smaller partitions, and then mount those inside of the jails, but I don't really want to do that. Any other ideas on how I can use my new space for my jails?
 
Have you tried just doing a basic partition setup and map fstab /usr directory to it and copy all data over? See if that works.
 
ezjail has some behind the seans control files in /usr/local/etc where info about jails directory location is held. You have to hand edit those files to point to the new locations of where you moved the /jails to. or it maybe in /etc. Just don't remember for sure with out digging into the code.
 
I solved it by mounting the new partition into the jails with
Code: 
mount_nullfs
It may not be as clean of a solution as actually moving everything into the new, larger partition, but it works and I literally have no time to try other methods.

Hopefully, someone else will find this useful if they're in the same spot that I was. Thanks for all of the suggestions.
 
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