e75c15bfda
To limit IO and space usage on the flash device the boot0 script makes sure the SWI is in memory. Because SONiC maps /tmp on the flash, some logic is required to make sure of it. However it is possible for some provisioning mechanism to already download the swi in a memory file system. This was not properly handled by the boot0 script. It now properly detect if the image is on a tmpfs or a ramfs and keep it there if that is the case. - How I did it Check the filesystem on which the SWI pointed by swipath lies. If this filesystem is a ramfs or a tmpfs the move_swi_to_tmpfs becomes a no-op. Made sure the cleanup logic would not behave unexpectedly. - How to verify it In SONiC: Download the swi under /tmp and makes sure it gets moved to /tmp/tmp-swi which gets mounted for that purpose. Make sure /tmp/tmp-swi gets unmounted once the install process is done. Create a new mountpoint under /ram using either ramfs or tmpfs and download the swi there. Install the swi using sonic-installer and makes sure the image doesn't get moved by looking at the logs. |
||
|---|---|---|
| .. | ||
| boot0.j2 | ||