Problem with aufs/overlayfs on top of nfs4
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Hello,
on a server, I have several chroot directories with different Ubuntu LTS versions installed. Each of these directories is exported readonly as an NFSROOT for clients being booted by
PXE; on the clients, the initrd (created by dracut) "makes the root directory writable" by
using aufs on top of the readonly nfs import. This works for clients with Ubuntu LTS versions up to 18.04, but it does not work correctly anymore on an Ubuntu 20.04 client: New files and directories can be created directly in /, but in subdirectories like /usr, /var etc., I get an error "Operation not supported" when I try to create a new file or directory.
Because of that problem, I switched from aufs to overlayfs, but overlayfs has the same error.
Regards
Christoph
affects: | ubuntu → linux (Ubuntu) |
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