swinstall.1m (2011 09)

s
swinstall(1M) swinstall(1M)
HP-UX kernel filesets are also reboot filesets, the values of this variables is always
equal to the value of SW_SESSION_IS_KERNEL
.
SW_SESSION_IS_UPDATE
A value of 1 indicates the SD command was invoked by the
update-ux command
during an Operating System update. This variable is set by the
update-ux com-
mand.
SW_SYSTEM_FILE_PATH
The path to the kernel’s system file. The default value is
/stand/system
.
Environment variables that affect
swinstall
in SRP:
SW_ALLOW_LOCAL_SRP_OPS
This variable is usually not set. If it is set to TRUE or 1, this variable allows
swin-
stall to run on a local SRP. If a value other than TRUE or 1 is specified, or if a
value is not specified, a local SRP does not support
swinstall.
Signals
The
swinstall and swcopy commands catch the signals SIGQUIT, SIGINT, and SIGUSR1. If these
signals are received, the command prints a message, sends a Remote Procedure Call (RPC) to the agents
to wrap up after completion, and then exits.
The agent ignores SIGHUP, SIGINT, and SIGQUIT. It immediately exits gracefully after receiving
SIGTERM, SIGUSR1, or SIGUSR2. Killing the agent may leave corrupt software on the system, and thus
should only be done if absolutely necessary. Note that when an SD command is killed, the agent does not
terminate until completing the task in progress.
The daemon ignores SIGHUP, SIGINT and SIGQUIT. It immediately exits gracefully after receiving
SIGTERM and SIGUSR2. After receiving SIGUSR1, it waits for completion of a copy or remove from a
depot session before exiting, so that it can register or unregister depots if necessary. Requests to start
new sessions are refused during this wait.
Locking
SD commands use a common locking mechanism for reading and modifying the Installed Products Data-
base (IPD) and software depots. This mechanism allows multiple readers but only one writer on an IPD or
depot:
Write Locks
swinstall commands that modify the IPD are restricted from simultaneous modification using
fcntl() locking on the file <IPD location> /swlock (for example,
/var/adm/sw/products/swlock
).
swcopy commands that modify a software depot are restricted from simultaneous modification using
fcntl() locking on the file <depot directory>
/catalog/swlock (for example,
/var/spool/sw/catalog/swlock
).
Read Locks
Both
swinstall and swcopy commands set fcntl() read locks on source depots using the
swlock file mentioned above. When a read lock is set, it prevents all SD commands from performing
modifications (that is, from setting write locks).
Terminal Support
For in-depth information about terminal support refer to:
• The Software Distributor Administration Guide manual
• Start the GUI or TUI, select the Help menu, then select the Keyboard... option to access the Key-
board Reference Guide .
RETURN VALUES
An interactive
swinstall or swcopy session always returns 0. A non-interactive swinstall or
swcopy session returns:
0 The software_selections were successfully installed/copied.
1 The install/copy operation failed on all target_selections.
2 The install/copy operation failed on some target_selections.
20 Hewlett-Packard Company − 20 − HP-UX 11i Version 3: September 2011