allows files and directories of separate file systems to be transparently overlaid and forming a single coherent file system

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AUFS shared over SMB and NFS

I am using ubuntu server 12.04 as a file server with 3 disks, two contain files and one contains parity of the others, using snapraid. I have been able to share one disk as both SMB and NFS, but now I ...
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1answer
49 views

AuFS read only branch as another read only branch

My goal is to use an AuFS read only branch as another read only branch: I've got a directory dir0, then I make : mount -t aufs -o br=dir2=rw:dir0=ro none dir1 This gives me - dir0 - dir1 #read ...
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70 views

How do I automount a unionfs-fuse filesystem?

I can run the shell command: unionfs-fuse /changedata=RW:/immutedata=RO -o cow /data This mounts the filesystem exactly how I want to. Now I need to incorporate it into the automounter so that ...
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1answer
62 views

How should I use Unionfs or similar in a computer lab to “freeze” /home?

Lab computers need to be "frozen." We'll be switching our XP lab of about 30 computers over to something else this winter, and I'm making a couple of proposals, one of which is LTSP, and another is an ...
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2answers
566 views

How do I create an overlayfs on NFS on a diskless device?

Looking for example/howto/etc of howto create an overlayfs for my diskless computers. I have multiple diskless computers that have root on nfs configured. I would like to use an overlay for files ...
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1k views

Overlayfs reload with multiple layers (migration away from aufs)

I've come across one of those aufs to overlayfs migration headaches. With aufs you could specify multiple RO-layers and updating some files in them was refreshed with remount. fstab with aufs: aufs ...
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20k views

How do I use OverlayFS?

This answer and email message indicate that something called "OverlayFS" is available in Ubuntu 11.10 and will forcefully replace aufs in Ubuntu 12.04. How do I use it? Where is its documentation?
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849 views

How will union mounts be possible in 12.04?

I noticed today that Ubuntu 12.04 will not include aufs. What, if anything, will be available to facilitate the creation of union mounts?
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658 views

aufs Root File System On Usb Flash

I configured aufs as a Root File System On Usb Flash Drive by this article. So the first brunch is real root FS and it is read-only. The second brunch FS is in memory and it is read-write capable. ...
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259 views

Compressing part of filesystem a second time

I have a laptop running Ubuntu 11.10. I've replaced the HDD with a 120GB SSD, and to save some precious disk space I utilized one of Steve Hanov's tips for optimizing Ubuntu to run on a USB key or SD ...
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949 views

“Unknown filesystem unionfs” although all packages and modules are installed

I'm trying to mount a unionfs file system in fstab (as one of the steps in this guide), with the following line: unionfs /usr unionfs nodev,noatime,dirs=/.filesystems/usr/overlay=ro:/usr=rw 0 0 ...