Fujitsu SPARC Enterprise T5120, Примечания к продукту

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126 SPARC Enterprise T5120 and T5220 Servers Product Notes • April 2010
When a system administrator or other user with root (/) privileges enters the
format
command on a system containing this bug, the boot drive will report “drive
type unknown”. This fault condition presents two problems for the administrator:
■
The administrator will be unable to access unused portions of the boot drive
because of the unknown drive type error.
■
The presence of mounted partitions blocks use of the
format
utility’s auto
configure feature. Attempts to bypass this restriction by booting from the network
or removable media could put the system in an unbootable state.
The Workaround section below describes a procedure you can use to recover from
this “drive type unknown” fault mode without the risks associated with the network
and media boot methods.
Workaround: The sequence of steps shown in CODE EXAMPLE 1 must be followed
exactly as shown. To simplify tracking of the procedure, the steps are organized into
nine sections:
1. Determine whether or not the system’s boot device is affected.
2. Shut server down and restart in single user mode with the root filesystem
mounted read only.
3. Mount the
tmpfs /tmp
filesystem to provide a working area.
4. Capture the boot drive’s existing
vtoc
in a file stored in
/tmp
.
5. Make a copy of the
fmthard
utility for use in the
/tmp
work area.
6. Set and export the
NOINUSE_CHECK
variable to allow the
format
command full
access to the boot drive.
7. Run the
format
utility to restore the drive’s “type”.
8. Use the
fmthard
command and stored information to complete the recovery.