CC linux-ext4, dm-devel On Mon, Jul 17, 2023 at 10:13 AM Kai Tomerius <kai@xxxxxxxxxxx> wrote: > > Hi, > > let's suppose an embedded system with a read-only squashfs root file > system, and a writable ext4 data partition with data=journal. > Furthermore, the data partition shall be protected with dm-integrity. > > Normally, I'd umount the data partition while shutting down the > system. There might be cases though where power is cut. In such a > case, there'll be ext4 recoveries, which is ok. > > How robust would such a setup be? Are there chances that the ext4 > requires a fsck? What might happen if fsck is not run, ever? Is there > a chance that the data partition can't be mounted at all? How often > might that happen? > > Thx > regards > Kai
