On 3.8.2013 19:57, Arno Wagner wrote:
For plain crypt (or Truecrypt) you have no UUID, so you cannot use it.
(You can use uuid/wwid of underlying device as mentioned above
but this is not be present always.)
Indeed. I tried both when I wrote the entry, only to find that
neither worked on my system (Debain with custom kernel).
As this is not a distrioution specific FAQ (there are those)
distribution specific stuff shopuld not go into it. Of course
documentation for a specific distribution can contain specific
advice that is not general, and some people have already asked
me about such things, also with regard to encrypted swap.
Device UUID/model etc should not be distribution specific,
udev /dev/disk/by-id* is quite standard among distibutions here.
In fact, udev reads it directly from /sys attributes, as the same
as lsblk does.
Maybe FAQ should also note that kernel device names (sda/sdb etc) is
NOT generaly persistent between reboots. (Usually it is the same but
nothing guarantees it, e.g. plugged USB disk or new SATA card can change
ordering and names). This is important mainly if you use swap keyword
whis is formatted on boot.
Milan
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