I have a file system that has some "unlinked inodes" and for this reason it was mounted as read-only. As I understood, to get this device into rw-mode, I need to perform partition check with fsck. All the advices I found state, that I should first unmount the device.
Is it necessary? Can one scan (and repair) with fsck a read-only partition? The server is used for smb-exports, and most of the users would be much happier if they, at least, would have a read-access.