Friday and Saturday I attended gitmerge, a free Git user conference
Friday was filled with lots of lightning talks with lots of interesting ideas,
projects and stories. I tried to collect most of the projects or slides in a
link list on pinboard. More info about each project can be found in
the git repo from the userday.
Saturday was planned as hackday. @mislav wanted to improve hub, a
wrapper for git. He listed the planned features in ticket #1. I
tried to help with that, but most mentioned issues were a little over my head
without ever have looked at the source. After a lot of code reading I could
atleast fix a little bug and comment on another issue.
To wrap things up, git merge was a nice little conference, showing off
interesting projects and ideas and I had a few little talks with nice people.
(Oh, and of course visiting Berlin is always nice)
Yesterday I got my 2TB backup disk. I formatted it and then used LUKS to encrypt it and LVM for the Volume Management.
After I copied some files to the new disk, I unmounted the disk, unplugged it and …
… Oh, shit.
I forgot to cryptsetup luksClose it.
That’s not a good thing to do. Always remember to luksClose! It’s so much easier
So after reconnecting the device, you can’t really decrypt and mount it, because it did not get unmapped (/dev/mapper/name still exists and so do /dev/name/*)
No problem, we fix that!
(in the following my mapping name is extern, change accordingly)
First see current status, especially Open count
Now remove each mapped device (-backup and -media for me, I have 2 partiions on the disk):