/dev/sda3 on /media/trisquel/357b0a3a-250d-4d31-a126-5a3abffefe95 type ext4
(rw,nosuid,nodev,uhelper=udisks2)
/dev/sda2 on /media/trisquel/22f63502-6860-48b5-85c8-b4d368389187 type ext4
(rw,nosuid,nodev,uhelper=udisks2)
Given what you wrote, one of those filesystems is the one with the files you
want to access. They are mounted with read and write accesses. Just look at
/media/trisquel/357b0a3a-250d-4d31-a126-5a3abffefe95 or
/media/trisquel/22f63502-6860-48b5-85c8-b4d368389187
That its files are probably owned by another user. That is why you needed
'chmod'. That is why you should have the same uid for the different users
that represent you on the different systems you installed.
