bsdinstall: set SCRIPT=/path/to/script env var to be able to automate…

[eoli3n]

automated bsdinstall to a jail

It doesn't seem to be the cleanest way, but it works with my simple example.

$ cat << EOF > /usr/local/jails/jail.template
DISTRIBUTIONS="base.txz"
export nonInteractive="YES"

#!/bin/sh
sysrc ifconfig_eb0_bind="inet 192.168.0.101 netmask 255.255.255.0"
sysrc defaultrouter="192.168.0.254"
EOF

$ zfs create -o mountpoint=/usr/local/jails zroot/jails
$ zfs create zroot/jails/jail1

$ env SCRIPT=/usr/local/jails/jail.template bsdinstall jail /usr/local/jails/jail1

[bsdimp]

What's the benefit of stripping the initial comments? #!... would be treated as a comment by /bin/sh. Can't you just . the "$SCRIPT"?

[eoli3n]

I didn't write the line, it comes from https://github.com/freebsd/freebsd-src/blob/main/usr.sbin/bsdinstall/scripts/script#L93

[eoli3n]

and see SCRIPTING part : https://www.unix.com/man-page/freebsd/8/bsdinstall/
The second part is run in the chrooted jail at the end of this script.

[allanjude]

The point is to split the 'script' file into two parts
everything before the sh-bang #! is variables to set, and everything after it is a 'post install' script to run at the end.

[bsdimp]

yea, these scripts are 'special' and 'different' in ways that are opaque... OK. this is fine then...

[bsdimp]

Landed as 6f4c145 in current.