When you add a new line to /etc/passwd, change "/root/root" to "root:/root" (i.e. remove a slash and add a colon).
a) Adding the extra colon will treat "/root" as the home directory and "/bin/bash" as the shell, rather than treating "/bin/bash" as the home directory (which doesn't exist).
b) Removing the leading slash will made the comment "root" rather than "/root" (or "/root/root"). This isn't essential, but it's unusual for a comment to start with a slash.
Markakd
commented
1 year ago
When you add a new line to /etc/passwd, change "/root/root" to "root:/root" (i.e. remove a slash and add a colon). a) Adding the extra colon will treat "/root" as the home directory and "/bin/bash" as the shell, rather than treating "/bin/bash" as the home directory (which doesn't exist). b) Removing the leading slash will made the comment "root" rather than "/root" (or "/root/root"). This isn't essential, but it's unusual for a comment to start with a slash.