Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 344 — #370

2. The services are stopped.

3. The poststop action of the proﬁle work is executed.

4. The system conﬁguration is changed.

5. The prestart action of the proﬁle home is executed.

6. The services are started.

7. The poststart action of the proﬁle home is executed.

Attach these actions with the command set by entering scpm set

prestop <filename>, scpm set poststop <filename>, scpm set

prestart <filename>, or scpm set poststart <filename>. The

call must be made to an executable — scripts must refer to the correct inter-

preter and must be executable at least for the superuser.

Query all additional settings entered with set with get. The command

scpm get poststart, for instance, returns the name of the poststart call

or simply nothing if nothing has been attached.

Reset such settings by overwriting with "". The command scpm set

prestop "" removes the attached prestop program.

All set and get commands can be applied to an arbitrary proﬁle in the

same manner as comments are added. For example, scpm get prestop

<filename work> or scpm get prestop work.

Caution

These scripts or programs should not be modiﬁable by any user

because they are executed with the rights of the superuser. It is

recommended to make scripts only readable to the superuser

because they can contain sensitive information. It is best to pro-

vide these programs with the permissions -rwx---- root

root with the commands chmod 700 variablefilename and

chown root.root <filename>.

Caution

16.2.7 Proﬁle Selection at Boot

It is possible to select a proﬁle during the boot process by providing the

boot parameter PROFILE=<name-of-the-profile> at the boot prompt.

In the boot loader conﬁguration (/boot/grub/menu.lst), the option

title reﬂects the name of the proﬁle. See Example 16.1 on the next page.

344 16.2. SCPM — System Conﬁguration Proﬁle Management