You've understood correctly. Changes anywhere that's under / should persist, except for temp-style directories: /tmp, /var/tmp, /var/cache/yum.

Something else must be going wrong. I think we'll need more details to work out what.

James

On Tue, 2011-10-25 at 10:50 +0100, Tim Coote wrote:
Hullo
I'm trying to use livecd to test fedora upgrades non-destructively. To make this work, I really need to be able to use the persistent overlay to fix drivers. I'm using the standard command: 

livecd-iso-to-disk --overlay-size-mb 2047 /path/to/live.iso /dev/sdb1

However, this is not working as I'd expect. If I boot from the resulting usb drive and change the configuration (eg to enable sshd), then the changes are lost on reboot.

Have I misunderstood how persistent overlays are supposed to work - I'd interpreted the documentation to mean that the overlay can persist changes from /, as well as just providing a persistent overlay to /home?

tia

Tim
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