IRIS 3010, Руководство пользователя

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Version 1.0 SERIES 3000
IRIS OWNER’S GUIDE 4-33 Workstation Administration
4.5.4 Recovery by Booting from the Second Disk
A small number of key files stored on a second disk is sufficient to reboot the
system if the original root file system becomes corrupted. If you have copies of
the key U
nix
files on a second disk, you can use them to boot the workstation.
It is not possible to boot from a second disk drive that has been configured as
only one file system (see Chapter 6). You can then try to rebuild the root file
system by copying these key files from the second disk to the first.
The procedure in this section assumes that the key
U
nix
files have been stored
on the second disk using the procedure in Section 4.4.3.
To boot from the second disk, follow these steps:
1. Set configuration switches 1 through 5 for booting from the PROM
monitor (see Table 3-1).
2. Reset the workstation by pressing
Reset
button.
The IRIS displays the PROM monitor prompt:
iris>
3. Boot the file vmunix1 on the second disk:
hd1:vmunix1
The system displays the superuser shell prompt:
#
4. Run the file system check program, fsck , on the first disk (the disk
you are recovering). List the file systems explicitly on the command
line:
IRIS 3020:
fsck /dev/rmd0a /dev/rmd0c
IRIS 3030:
fsck /dev/rsi0a /dev/rsi0f
Repair any problems reported by fsck .
5. Make a /root directory:
mkdir /root