btrfs-convert of ext4 yields unmountable FS
Bug #1869281 reported by
Paul Collins
This bug affects 3 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Btrfs Tools |
Unknown
|
Unknown
|
|||
btrfs-progs (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
This is with btrfs-progs 5.4.1-2 in focal. Similar result with 5.2.1-1ubuntu1 in eoan.
Following conversion, both mount and btrfs check report an extent that reached beyond the end of the device:
ERROR: dev extent devid 1 physical offset 126701535232 len 33554432 is beyond device boudnary 126726701056
I was doing this booted from a live USB image, so I only have pictures of the screen, which I will attach.
I used -d to speed up creation of the ext2 image, but it also happens without -d.
Hi! Could you please send this report to the mailing list (<email address hidden>)? There's too little information for me to even suspect what could be wrong; one of core devs might have an idea outright -- but I guess more info about the image in question will be needed.