On 04/05/20 12:26, Stefanie Leisestreichler wrote: > > > Thanks, Wol, especially for the hint with the GUIDs, will keep this in > mind. If ever using it again - maybe in case of a quick temporary > replacement in the original computer - I will wipe it with zeros before. And what Johannes said ... oh and I believe gdisk has an option that will change guids for you without affecting anything else. Wiping it with zeroes will take a long time - it might well be mdadm I think it has an option to wipe the raid superblock. Note that both the partitions and the raid will have guids, so moving drives around can be fraught ... > > The partition layout will be cloned using sfdisk. > > Thanks for the wiki links. I read the wiki before asking but it was not > clear to me how to do it... > > Btw, I will stay with mdadm/lvm/ext4 and not switch to btrfs. > That's good - my feelings entirely as btrfs may be a decent file system, but I gather parity raid is experimental as in it will probably eat your data at some point and may be unfixable. I gather it also does NOT mirror your data by default (typical computer scientists - they consider the filesystem structure valuable and assume the user can retrieve the data from backup ... :-( lvm gives you snapshotting and stuff ... And my current (and planned new) systems both have the root filesystem on a separate partition from /home, so if I wanted I could have root on a 1.0 mirror - not especially recommended but there are good reasons for it ... > Thanks again, > Steffi Cheers, Wol
