How to mount Jolla's internal storage as mass storage mode? (In attempt to recover files)

General
#1

I’m trying to get testdisk or photorec recovery programs to see the the internal storage (as a drive) correctly.

Is this the right approach or is this approach in vain? First of all, if there was a way to accomplish the mounting as “just another hdd” in Ubuntu.

Thanks. I have no SD-card in the phone and this is Jolla One, fully updated.

#2

login in to telnet, umount your partitions, if mounted, mount sd card. dd image of partition to sd card. work with image.

2 Likes
#3

Follow coderus approach.
Or you compile on device and run it there directly.

#4

I don’t think photorec or testdisk is able to recover files on btrfs.

1 Like
#5

Yes, you are right.
So no chance at all? :frowning:

#6

On a similar theme, how am I supposed to do a backup? The inbuilt one is buggy and doesn’t cover system partition.

On MotoG2, I used TWRP but it can’t read the encrypted BTRFS partition on my XA2.

#7

?
The internal one backups some user data and selected configuration only…
Not partition wise!

?
That does not go together.
For XA2 you use recovery shell and cryptsetup and mount and dd, e.g.


and
https://together.jolla.com/question/203121/xa2-full-backup-in-terminal/

1 Like
#8

Fdisk output:

"Device Start End Sectors Size Type
/dev/mmcblk1p1 2048 62333918 62331871 29.7G Linux filesystem

Disk /dev/mapper/sailfish-root: 2.5 GiB, 2621440000 bytes, 5120000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/sailfish-home: 17.6 GiB, 18849202176 bytes, 36814848 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/luks-60c02ae6-f85d-407d-8607-ed5ea90488a4: 17.6 GiB, 18847105024 bytes, 36810752 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes"

So the partition is encrypted with LUKS v1.
“sailfish-root” is too small to be system.

Awkward but there doesn’t seem to be any choice. A utility to regularly back up ‘home’ would be awesome. Seems rsync can do it connected to a Unix machine.

It even looks borderline impossible to get rid of the encryption, because I don’t particularly want the annoying security features either.

I even used the TWRP version of XA2 (via fastboot) but still no prompt for my PIN.