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na_floppyboot - describes the menu choices at the floppy
boot prompt
1 Normal boot
2 Boot without /etc/rc
3 Change password
4 Initialize all disks OR Initialize owned disks OR Assign
ownership and initialize disks for root volume OR No disks
assigned (use `disk assign' from Maintenance Mode)
5 Maintenance mode
floppy boot is a Data ONTAP mode that is entered after
booting from a floppy disk or after hitting Control-C at
the appropriate point during a hard-disk boot.
After initiating a floppy boot, a menu of choices is presented
that allows for the selection of the desired type
of boot.
option 1: Normal boot
This causes a normal full boot
sequence to be done, after which the
system behaves just as if a boot from
hard disk had been done.
option 2: Boot without /etc/rc
This does a normal boot, but bypasses
execution of the /etc/rc file. Following
this, the system is running
normally, but without the configuration
normally provided to it in the
/etc/rc file. The commands in the
/etc/rc file can be typed manually to
bring the system fully operational.
Generally, this command is used when
there is something in the /etc/rc file
which is causing the filer to misbehave.
Often, only an ifconfig command
and an nfs on or a cifs restart command
are done manually, allowing NFS
or CIFS to become operational; then
the /etc/rc file is edited to remove
the offending lines, and then the system
is rebooted.
option 3: Change password
This allows the filer password to be
changed. It is usually used when the
administrator has forgotten the
current password, and so cannot use
the online passwd command.
option 4: Initialize all disks
This commands zeroes all the filer's
disks and re-enters the setup menu.
It is typically used only once, at
system installation time. This option
asks for confirmation; once confirmed,
there is no way to retrieve data previously
on the disks. Zeroing the
disks may take time (sometimes hours),
depending on how many disks there are,
whether they need to be zeroed or not,
and what capacity each has.
On systems with software-based disk
ownership, option 4 initializes disks
that are assigned to the system. If no
disks have been assigned on systems
other than V-Series systems, the software
attempts to assign a minimum set
of disks for the aggregate containing
the root volume. After disks are
assigned, they are zeroed and the user
enters the setup menu. For V-Series
systems the user must use option 5 to
assign at least one disk (LUN) from
the storage subsystem, then use option
4 to create the root volume. After
disks are assigned, they are zeroed
and the setup menu is entered.
option 5: Maintenance mode boot
This enters a mode in which a small
subset of commands are available, and
is usually employed to diagnose hardware
(often disk-related) problems.
In maintenance mode, WAFL aggregates
and traditional volumes are recognized
but are not used, the /etc/rc file is
not interpreted, and few system services
are started. NFS and CIFS cannot
be used. Disk reconstructions do
not occur. No filesystem upgrade
occurs, even if the system is newer
than the OS release previously
installed.
It is generally recommended that clustering be explicitly
disabled or that the other system be halted (to the `ok'
prompt, or powered off) before entering the various floppy
boot menu choices on this system. Failure to do this can
sometimes result in takeovers by the other node while in
maintenance mode; this is usually undesirable.
na_disk(1), na_download(1), na_rc(5), na_fcdiag(1),
na_fcstat(1), na_fctest(1), na_halt(1), na_ifconfig(1),
na_nfs(1), na_vol(1), na_aggr(1)
A floppy boot menu choice affects only a single boot of
the OS. In order to continue to boot the same version of
the OS from the hard disk in the future, you must intall
that OS on the hard disk using the untar installation process
and the download command.
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