this is what sudo tlp-stat -b prints:

— TLP 1.6.1 --------------------------------------------

+++ Battery Care

Plugin: generic

Supported features: none available

+++ Battery Status: BAT0

/sys/class/power_supply/BAT0/manufacturer = DP

/sys/class/power_supply/BAT0/model_name = bq20z451

/sys/class/power_supply/BAT0/cycle_count = 666

/sys/class/power_supply/BAT0/charge_full_design = 6330 [mAh]

/sys/class/power_supply/BAT0/charge_full = 5043 [mAh]

/sys/class/power_supply/BAT0/charge_now = 4936 [mAh]

/sys/class/power_supply/BAT0/current_now = 0 [mA]

/sys/class/power_supply/BAT0/status = Full

/sys/class/power_supply/BAT0/charge_control_start_threshold = (not available)

/sys/class/power_supply/BAT0/charge_control_end_threshold = (not available)

Charge = 97.9 [%]

Capacity = 79.7 [%]

do you still recommend a new battery?

If you’re gonna use Linux then go ahead and replace the battery so that you’re not worrying about it failing miserably to communicate with the charge controller or battery itself and tell you when telhe thing is fucked and need replacing.

I’m already using linux, macos was nuked.

I don’t understand this paragraph. Do you mean new batteries for this model (macbook pro from 2014) work better with linux?

hi, thanks for your input.

Small breakthrough: I booted the system without problems to tty1 (I believe this is called single user mode), logged in as an old user and now I can see all my data, logged in as old me. Do you still recommend to backup from live usb and upgrade from there?

NMTI shows that wlan works

I purged the broken package with sudo dpkg -P libfreerdp2-2 and immediately afterwards I executed sudo apt get upgrade. It unleashed a list of 96 packages to upgrade totaling 900 MB of data.

However, if I press yes on ‘do you want to continue?’ wlan seems to be off:

E: failed to fetch http… initramfs-tools-core… could not connect to 127.0.0.1, connection refused.

(I can write the whole address if you need it)

how do I enable wlan as root from initramfs?

Does mount /home improve that ?

no

Im reading about nmtui

feel free to suggest other approaches