Complete these steps to finalize the Red Hat Enterprise Linux® version 3 migration.
- Create a virtual SCSI server and client environment. Create this
environment by completing the following steps from your client partition (Linux partition):
- Right-click its partition profile in the HMC and select Properties.
- Select the Virtual I/O tab.
- If there are no client SCSI adapters, create a client SCSI adapter
at the bottom of the tab. When creating a client SCSI adapter, ensure that
you specify the following:
- Select Client for the adapter type.
- Ensure that it points to the correct server partition that is sharing
its resources with your client partition under Remote partition.
- The Remote partition virtual slot number matches
the slot number for the SCSI server on the partition that is sharing its resources.
- Select the Power controlling tab.
- Under Power controlling partitions to add,
select the partition that is sharing its resources.
From the server partition that is sharing its resources (i5/OS® partition):
- Right-click its partition profile in the HMC, and then select Properties.
- Select the Virtual I/O tab.
- If there are no client SCSI adapters, create a client SCSI adapter
at the bottom of the tab. When creating a client SCSI adapter, ensure that
you specify the following:
- Select Server for the adapter type.
- Ensure that it points to the correct client partition that is obtaining
resources from it under Remote partition.
- The Remote partition virtual slot number should
match the slot number for the SCSI client on the Linux partition.
- Create and configure your network server description (NWSD) to
use virtual SCSI. To create and configure your NWSD, complete the following
steps:
- Create your NWSD and link your migrated network server storage
space (NWSSTG). To create and link this, complete the following steps:
- At an i5/OS command
line on the partition that shares resources, type CRTNWSD,
and then press F4 for prompts.
- Specify the following information:
NWSD (Provide a name for the NWSD)
RSRCNAME (*AUTO)
TYPE(*GUEST)
ONLINE (*NO or *YES)
PARTITION ('Provide the name of your AIX or Linux logical partition')
CODEPAGE (437)
TCPPORTCFG (*NONE)
RSTDDEVRSC (for virtual CD and tape devices) (*NONE)
SYNCTIME (*TYPE)
IPLSRC (*STMF)
IPLSTMF (*QOPT)
IPLPARM (rescue)
PWRCTL (*YES)
Notes: - After the installation, if your root file system (/) is not installed
on the first partition of the first disk, set a root parameter.
- For the IPLSTMF, use the path as recommended by the distributor's installation
document. One example is /QOPT/RED_HAT/images/netboot.img.
- Enter in the partition name or the partition number, but not both.
- Link the network server storage space by completing the following steps:
- At an i5/OS command
line, type the command ADDNWSSTGL, and then press F4.
- Enter the following parameter values on the Add Network Server Storage
Link (ADDNWSSTGL) display, and then press Enter.
- In the Network server description field, specify the name of the network
server description (NWSD).
- In the Dynamic storage link field, specify *YES to
make the network server storage space dynamically available to the partition
(that is, available without rebooting the Linux partition).
- In the Drive sequence number field, specify the link sequence position
you want to use.
- Locate the type 290B communication adapters, which are the virtual
SCSI connections. Enter WRKHDWRSC *CMN and then enter
a 7 (display resource detail). Match the adapter to
the slot and enter the resource name for the adapter (for example, CTL07)
in the resource name file of your NWSD.
- Activate the Linux partition from the HMC if you have not already
done so. To activate the partition, right-click your partition in the HMC
and select Activate.
- Open a terminal window for the Linux partition.
To open a terminal window, right-click your Linux partition
and select Open Terminal Window. Activating and shutting
down your Linux partition
are essential steps to prepare the partition before you vary on the NWSD.
- Shut down your Linux partition from the HMC. To shut down the partition,
right-click your partition in the HMC, and then select Shut Down
Partition.
- Put CD 1 into the CD-ROM drive of your i5/OS partition
that is sharing its resources.
- Vary on your NWSD by completing the following steps:
- Type WRKCFGSTS *NWS, and then press Enter.
- Type 1 next to the NWSD that you want
to start, and then press Enter.
- If the vary on is successful, Linux will boot into the rescue system
in your terminal window. Answer the prompts for the appropriate language.
Note: Allow the rescue system to search for the installation.
- Ensure that your root partition is mounted correctly. From the
shell command prompt, enter the command:
chroot/mnt/sysimage
- Change the format for iSeries® virtual devices. Normally, you make these
changes in the /etc/fstab file. Edit the fstab file by changing the names
based on the following table.
Virtual device |
Previous name |
New name |
Virtual disk |
/dev/iseries/vdxx |
/dev/sdxx |
Virtual CD |
/dev/iseries/vcdxx |
/dev/srxx |
Virtual tape |
/dev/iseries/vtxx |
/dev/stxx |
To edit the fstab file, complete the following steps: - To find your file, enter cd /
- Enter cd etc
- Enter vi fstab
- Change the virtual devices based on the preceding table.
Note: Because
Red Hat uses disk labeling, change the swap partition's device path along
with any other custom mount points you might have added to the fstab file.
For example, the line /dev/iseries/vda2 swap swap defaults 0 0 becomes /dev/sda2
swap swap defaults 0 0.
- Save and exit by pressing ESC, and then entering :wq!
- Change the iSeries virtual console by editing the /etc/inittab
file. To edit the inittab file, complete the following steps:
- To find the file, enter cd /
- Enter cd /etc
- Enter vi inittab
- Near the bottom of the file, find the following six lines:
1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6
- Comment out each of these lines by entering # at the beginning
of each line.
- Add the following line before the six lines listed above:
co:2345:respawn:/sbin/agetty hvc0 38400 vt100
- Change the symbolic link to the CD-ROM device by completing the
following tasks:
- Enter rm /dev/cdrom
- Enter ln —s /dev/scd0 /dev/cdrom
Note: Perform
this step for other CD-ROM devices that you might have.
- Install the new kernel by completing the following steps:
- Enter vi /etc/modules.conf
- Change the line alias scsi_hostadapter viodasd to alias
scsi_hostadapter ibmvscsic
- If you are using virtual ethernet, change the line alias
eth0 veth to alias eth0 ibmveth
- Enter ln —s /sbin/ybin /usr/sbin/ybin
- Create an /etc/yaboot.conf configuration file by entering vi
/etc/yaboot.conf. The file should contains:
boot=/dev/sda1 (The location of your PReP boot partition)
partition=2 (The partition number for your root partition)
timeout=30
install=/usr/lib/yaboot/yaboot
delay=10
nonvram
image=/boot/vmlinux-2.4.21-18.EL (Kernel file based on your version of Red Hat.)
Label=2.4.21-18.EL.img (Name for this kernel)
read-only
initrd=/boot/initrd-2.4.21-18.EL.img (Path to initrd file based on Red Hat version.)
append="console=hvc0 root=LABEL=/
- Install the pSeries® kernel RPM by entering:
rpm -ivh <kernel version number>.ppc64pseries.rpm
Notes: - Ensure that you are in the directory in which you transferred your save
file to. Add /root/ before your kernel version number if the installation
is not working correctly in your current directory.
- Ensure that there are no errors returned from the mkinitrd command or
the kernel installation. If mkinitrd returns an error, check the changes that
you made in the /etc/modules.conf file. You might see errors that can be ignored
that are returned by the tar command if you do not have the time and date
properly set on your partition.
- Edit the /etc/securetty file and perform the following steps:
- To find the file, enter cd /
- Enter cd /etc
- Enter vi securetty
- On a new line at the end of the file, enter hvc0
- Save and exit the file by pressing ESC, and then entering :wq!
- Enter exit twice to exit the rescue system. The system
shuts down.
- Complete the following steps to vary off the NWSD:
- Type WRKCFGSTS *NWS, and then press Enter.
- Type 2 next to the NWSD that you want
to start, and then press Enter.
- Reconfigure the NWSD to start the partition from NWSSTG. See the
distributor's documentation for more details.
Specify the following
information:
NWSD (Provide a name for the NWSD)
TYPE(*GUEST)
ONLINE (*NO or *YES)
PARTITION ('Provide the name of your AIX or Linux logical partition')
CODEPAGE (437)
TCPPORTCFG (*NONE)
RSTDDEVRSC (for virtual CD and tape devices) (*NONE)
SYNCTIME (*TYPE)
IPLSRC (*NWSSTG)
IPLSTMF (*NONE)
IPLPARM (*NONE)
PWRCTL (*YES)
- Complete the following steps to vary on the NWSD:
- Type WRKCFGSTS *NWS, and then press Enter.
- Type 1 next to the NWSD that you want
to start, and then press Enter.
- To enable power control of the Linux partition from i5/OS and
the HMC, download the DynamicRM and Diagela RPMs. The Linux support Web
site contains all the directions necessary for you to get the applications
installed.