** Description changed:
I apologize for direct mentioning to the source codes.
Problem:
- try_mount() in casper-helpers script doesn't honor the mount-point parameter
when mount-option != "ro".
- This is obvious on code, but it wouldn't what it meant to be.
- I guess,
-if the device is already mounted on A, and
- if the indicated mount point of which is the same as previous mounted
(i.e. A; where_is_mounted() says),
- do mount -o remount ...
-else
- do mount -o bind ...
-whatever the indicated mount options are.
+ try_mount() in casper-helpers script doesn't honor the mount-point parameter
when mount-option != "ro".
+ This is obvious on code, but it wouldn't what it meant to be.
+ I guess,
+ if the device is already mounted on A, and
+ if the indicated mount point of which is the same as previous mounted
(i.e. A; where_is_mounted() says),
+ do mount -o remount ...
+ else
+ do mount -o bind ...
+ whatever the indicated mount options are.
- This spec suffers in the case,
-setting persistence YES, boot media, especially USB, is multi-partitioned,
and persistence data are on separated part from the base boot image.
- In that case, find_cow_device() falsely unmount /cdrom (because
where_is_mounted() says '/cdrom' was
-previous mount point in the device searching iteration) and gone busybox
prompt.
- There might be a fix find_cow_device() itself but, I thought that
try_mount() is fundamental.
+ This spec suffers in the case,
+ setting persistence YES, boot media, especially USB, is multi-partitioned,
and persistence data are on separated part from the base boot image.
+ In that case, find_cow_device() falsely unmount /cdrom (because
where_is_mounted() says '/cdrom' was
+ previous mount point in the device searching iteration) and gone busybox
prompt.
+ There might be a fix find_cow_device() itself but, I thought that
try_mount() is fundamental.
A patch attached is a sample to solve this.
+
+ Notice:
+ An attached patch was from my own fixed version, and contains
find_cow_device() modification. Be careful when applying.
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https://bugs.launchpad.net/bugs/1762920
Title:
casper-helpers:try_mount doesn't honor the mount point
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