Change path of the folder from one drive to another
 

I have configured 3 drives on my machine.
sda1 less than 10 GB
sda2 less than 10 GB
sda3 450 GB

I have installed a software in /usr/share/MyApplication
and as I see /usr/share stays at sda2 and only 2 Gb is free but my application needs more than 3 GB free to run because it creates a temporary file greater than 3 GB during execution.

Knows anybody any way how to make MyApplication stays in sda3 drive. I am newbiew to linux.

Thanks in advance and best Regards,
seldi

Hi, welcome to LQ!

Can you please shed some light and tell us what the respective
mount-points for those partitions are?



Cheers,
Tink

Thanks Tink for your quick replay.
How to find mount-points for respective partitions?

Throw df or mount at the command line :)

This was what produced the "df" command.

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 ------ 20641788 --- 13266732 --- 6326416 -- 68% -- /
udev ------ 2167184 ---- 180 --- 2167004 -- 1% -- /dev
/dev/sda3 --- 452059908 --- 15076752 -- 414019848 --- 4% -- /home

And now the output of "mount", and "cat /etc/fstab", please. What distro are
you running, btw? Did you use LVM for the disks?


Cheers,
Tink

execution of Mount command:

/dev/sda2 on / type ext4 (rw,acl,user_xattr)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
debugfs on /sys/kernel/debug type debugfs (rw)
udev on /dev type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/sda3 on /home type ext4 (rw,acl,user_xattr)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
securityfs on /sys/kernel/security type securityfs (rw)
none on /proc/fs/vmblock/mountPoint type vmblock (rw)

execution of "cat /etc/fstab"
/dev/sda1 ---- swap ---- swap ---- defaults ---- 0 0
/dev/sda2 ---- / ---- ext4 ---- acl,user_xattr ---- 1 1
/dev/sda3 ---- /home ---- ext4 ---- acl,user_xattr ---- 1 2
proc ---- /proc ---- proc ---- defaults ---- 0 0
sysfs ---- /sys ---- sysfs ---- noauto ---- 0 0
debugfs ---- /sys/kernel/debug ----debugfs ---- noauto ---- 0 0
usbfs ---- /proc/bus/usb ---- usbfs ---- noauto ---- 0 0
devpts ---- /dev/pts ---- devpts ---- mode=0620,gid=5 ---- 0 0

--Did you use LVM for the disks?
I dont know? :(

Before you go further, an application should not be writing to /usr/share. Check where it creates the temporary 3 GB file. If it is in the users $HOME directory, you have room. If it is in /var/tmp, /var/run/ or /tmp, then you have the same problem.

---
From what you posted, you didn't use LVM. Also, you have 1 hard drive with 3 partitions.
----

Does this program write its data inside a directory it created? For example /var/run/aprogram.
If so, you could create a link from /var/run/aprogram to a hidden directory located under /home provided it has access. Another thing to look for, is if a configuration setting or command line argument will locate the file elsewhere. You could easily repartition /dev/sda1 into two partitions. 10GB for a swap partition seems excessive. If /var is used for the data file, you could use 3GB for swap and create a 7 GB partition for /var.
----
Some programs will create working files under /tmp or /var/tmp that are deleted. This prevents name collision and if the program crashes, the file is deleted. You can locate such files with the command: lsof +L1. Here is an example:
chrome 3649 jschiwal 82u REG 8,6 512 0 1443360 /tmp/etilqs_7baebXT6DrSDQwQ (deleted)

---

If none of these ideas work out, then it is a matter of resizing and relocating /dev/sda2 and /dev/sda3.

thanks a lot for your quick responses.
Can I remove 2 partitions and make only one available and mount it to "/" without losing data.
If is it possible, please tell me which commands to execute in my case.

Thanks again for your willing to help.

I'm afraid "merging" partitions is not possible. You'd have to create
a backup, destroy the existing partitions and create on new one (not
that that's a good idea, generally speaking).


Cheers,
Tink