February 22, 2025

• Repaired Barend's old laptop. The issue seemed to be a loose contact between the HDD board and the motherboard.
• First installed Ubuntu 20.04 on the original 250 Gb harddisk when it was external.
• Installed it internally, gparted saw the disk but without any partition. Selected msdos as partition type, and was able to install Ubuntu 20.04 again, but now internally.
• The laptop battery was on 70%, now charging again.
• When working on the HDD, I had to connect/deconnect the keyboard and touchpad. Forgot to test touchpad before screwing it close again. To be fixed the next time I open the computer again.
• For now I have a working spare Ubuntu 20.04 laptop again.

January 9, 2025

• Was able to use PulseSecure after cleaning some diskspace from ~/data/semfire, using the trick from stackexchange post: /opt/pulsesecure/bin/setup_cef.sh reinstall.
• Inspecting the disk from Barend's old laptop. Gparted sees that it has a rfs file system. Could not mount the file system. Gparted searches for a file system on this partition, to do data discovery, no avail.
• Tried some of the tricks of this post, but get from sudo zpool import the response no pools available to import.
• I have a vague memory that I tried a new-type of file-system when installing Ubuntu on Barend's laptop. Maybe that wasn't a good idea.
• Used Gparted to format the partition to ext4-format. Could mount the drive of 327Gb, but there was only a empty lost+found (although 1.94 Gb was used).
• Trying to put the SSD back in the computer and reinstall Ubuntu on it.

January 3, 2025

• The trick to use ssh -m hmac-sha2-512 worked. Haven't tried scp -o MACs=hmac-sha2-512.
• Better to set the default algorithm somewhere.
• The advice to change a register key only works with nsoftware suite.