NOTE: Back up the data before proceeding. If you have a tape drive connected to your RS/6000, this can be achieved by executing the following sequence of commands on either /var or /tmp:
cd /
tar -cvf /dev/rmt0 /var
/dev/rmt0 can be replaced with /dev/fd0 or the full path of a directory NOT in the same file system.
1. Boot your system into a limited function maintenance shell (Service or Maintenance mode) from bootable AIX media.
Please refer to your system user's or installation and service guide for specific IPL procedures related to your type and model of RS/6000.
2. With bootable media of the same version and level as the system, boot the system into Service mode.
The bootable media can be any ONE of the following:
Bootable CD-ROM
NON_AUTOINSTALL, bootable mksysb
Bootable Install Tape
Follow the screen prompts or icons to the Welcome to Base OS menu.
a.Choose Start Maintenance Mode for System Recovery (Option 3). The next screen displays prompts for the Maintenance menu.
b.Choose Access a Root Volume Group (Option 1).
The next screen displays a warning that indicates you will not be able to return to the Base OS menu without rebooting.
c.Choose 0 continue.
The next screen displays information about all volume groups on the system.
d.Select the root volume group by number. The logical volumes in rootvg will be displayed with two options below.
e.Choose Access this volume group and start a shell. (Option 1).
If you get errors from the preceding option, do not continue with this procedure. Correct the problem causing the error. If you need assistance correcting the problem causing the error, contact IBM 800-810-1818 or your AIX service provider.
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