Booting Files From The Default Device; Messages From The Monitor And Boot Program - Sun Microsystems Sun Workstation 100U System Manager's Manual

Power-up and Bootstrap
Sun 100/150 Installation Manual
A-6
A.3.4. Booting Files from the Default Device
To boot any file from the default device, enter:
>
b
pathname ar9'
This is useful for booting standalone utility programs, once your disk or network disk is set
up, or for trying new versions of the
UNIX
kernel.
A.4. Messages from the Monitor and Boot Program
Abort at
tItititititi
The monitor has aborted execution of the current program because you entered the
"abort sequence" (upper left key held while pressing "A") from the Sun keyboard, or
pressed BREAK on a serial console.
tItititititi
is the address of the next instruction. You
can continue the program from there by entering the
"c"
command.
Address Error, addr:
%%%%%%
at aaaatltl
The current program has stopped because it made an invalid memory access. zzzzzz is
the (invalid) address;
tltlaatla
is an address near the instruction which failed (typically
two to ten bytes beyond). There is no general way to recover from this error, except to
debu~
the program.
ar: cartridge is write protected
The current program is trying to write on an Archive tape cartridge, but the "Safe"
switch at the top left corner of the cartridge is set to prevent writing on the tape.
ar: zzzz error
The monitor or boot program is trying to boot from an Archive tape, and encountered
an unexpected error. The status bytes
%%%%
can be decoded by looking under "Read
Status Command" in the Archive Product Manual. This error could be caused by
incorrect cables, a bad tape, or other problems.
ar: drive not responding
The monitor is trying to boot from an Archive tape, but can get no response from the
tape drive. This can occur if your system contains an Archive controller board but no
tape drive, or if the tape drive's cable is loose or disconnected, or if the tape drive's
power is not on.
ar: invalid state
%%
This message indicates that the standalone I/0 system has a bug in its Archive driver.
a.r:
no cartridge
ar: no cartridge in drive
The monitor or boot program is trying to boot from an Archive tape, but there is no
cartridge in the tape drive.
ar: no drive
The monitor or boot program is trying to boot from an Archive tape, but the specified
drive does not exist. Typical Archive configurations include only drive O.
ar: RDST gave Exception, retrying
The current program is trying to use the Archive tape drive, and encountered an error.
The error is probably caused by hardware. Check the cable(s) that connect the tape
drive to the system.
Revision H of 12 March 1984