On Thu 01 Feb 2018 at 17:15:40 (+0100), Nicolas George wrote: > David Wright (2018-02-01): > > As far as finding the swap partition with fstab, ISTR a workaround. > > Without the details, you make the swap partition with a tiny > > filesystem in it, which gives it a stable UUID and LABEL. You then > > specify an offset in every reference to its use, which skips over > > the filesystem at its start. > > What are you trying to achieve with this baroque contraption?
I'm not trying to achieve anything. I'm not the OP. I prefaced my reply with ISTR. IOW someone else invented this method and I neither ask for credit nor disparage it. > If a swap is encrypted normally, then just use its UUID. That assumes it's stable. The OP said it's not. I'm making no judgment on the matter. > If a swap is encrypted with an ephemeral key, that means its contents is > not wanted after a reboot, so there is no need to preserve the key, > obviously. As to how to specify it in fstab, you need to use the name > declared in crypttab. The contents will be wanted if it's being used for resume which is in the Subject line. (I didn't write it.) > Using filesystem labels and UUID is IMHO a very bad design, because they > reside inside the filesystem itself. Better use LVM, partition names or > partition UUIDs. AIUI, again, correct me if I'm wrong, partition names and UUIDs are modern, non-baroque contraptions introduced with GPT. Of course, the filesystem LABEL and UUID reside in the filesystem. That's why a mechanism exists to have a filesystem and swap space in the same partition. I'd be interested to know why the offset was introduced if not for such a purpose. Just interested, you understand. I have no axe to grind. Remember, I'm not the OP. I only know what the OP tells us. Cheers, David.
