Laptop Refresh

Here is my process and notes for a laptop refresh. Usually i just migrate from one Lenovo laptop to the next one, so the hardware is pretty similar.

2023-10-18: migrated from T480s to T14s. (archwiki)

Boot on a liveusb stick on both laptop. Ex, archlinux ISO. Connect them both with an eth cable.

From old Laptop

ip add 192.168.2.1/24 dev <ETH INTERFACE>
dd if=/dev/nvme0n1 | ncat -l 192.168.2.1 8080

From now on, everything is done from new laptop

Copy disk

ip add 192.168.2.2/24 dev <ETH INTERFACE>
ncat 192.168.2.1 8080 | dd of=/dev/nvme0n1 status=progress
sync

Fix partitions

# first backup partitions table
sfdisk -d /dev/nvme0n1 > /tmp/nvme0n1.fdisk
sgdisk  -b /tmp/nvme0n1.gdisk /dev/nvme0n1

# open luks device
cryptsetup luksOpen /dev/nvme0n1p3 arch
vgscan
gdisk /dev/nvme0n1 # fix GPT  and save
# convert to GPT if needed
sgdisk -g /dev/nvme0n1

Resize partitions

parted /dev/nvme0n1 # to extend the partition. resizepart NUMBER END.
vgchange -a n vg0 # Stop using the VG so you can do the next step.
cryptsetup luksClose arch # Close the encrypted volume for the next steps.
cryptsetup luksOpen /dev/nvme0n1 arch # Open it again.
cryptsetup resize arch # Will automatically resize the LUKS volume to the available space.
vgchange -a y vg0 # Activate the VG.
pvresize /dev/mapper/arch # Resize the PV.

At this point the Volume Group should have more room. Up to you to resize / or save that space for later.

Install grub

mount /dev/mapper/vg0-root /mnt
mount /dev/nvme0n1p2 /mnt/boot
mount /dev/nvme0n1p1 /mnt/boot/efi
arch-chroot /mnt
grub-install --target=x86_64-efi --efi-directory=/boot/efi

Reboot. Then check logs for things that need fixing.

Update firmwares

fwupdmgr refresh
fwupdmgr get-updates
fwupdmgr update

Watch logs

journalctl -b -p 0..4 # check boot messages
dmesg -w -l emerg,alert,crit,err,warn

Common post migration steps, or things to fix

sensors-detect  # rescan sensors