This skill guides the user or executes recovery procedures when a NixOS system on a Btrfs filesystem suffers from physical SSD bad sectors (NVMe I/O errors) that corrupt specific paths in the read-only /nix/store.

It bridges the gap between hardware-level block remapping and software-level Nix store state alignment.

Flashing Memo

Expand Partition Size #

growpart /dev/sda 1
resize2fs /dev/sda1

Shrink Partition Size #

Shrink Filesystem

resize2fs /dev/sdb1 24G

Multiply the output 4k value by 4 for the following operations

Resize Partition

fdisk /dev/sdb
d
n

Server #

Install Samba

apt install samba -y

Enable write permission

Locate the definition of the homes share

   read only = no

Add Samba user

smbpasswd -a $USER

Restart Samba service

service smbd restart

Client #

Install cifs-utils

apt install cifs-utils -y

Mount Samba

mount -t cifs -o username=xxx,uid=xxx,gid=xxx //server_ip/user /path/to/mount

From 神代綺凛 “KMS Activation”