Dear Smith,

Thank you for your information! I tried to migrate RHES 4.0 to CentOS 4.2 and successfully finished it. It saved much time and gave me many conviences because I didn't have to reinstall the Linux.

The main issue was a device driver, but it is included in CentOS 4.2. So after rebooting with CentOS kernel, my X4100 runs perfectly.

Thank you for your help!

Sungsoo Kim

----- Original Message ----- From: "Benjamin Smith" lists@benjamindsmith.com To: "CentOS mailing list" centos@centos.org Sent: Saturday, January 07, 2006 4:24 PM Subject: Re: [CentOS] Can I install CentOS 4.2 on Sun X4100?

There's a howto for switching from Whitebox, I'd imagine that ES to CentOS would be similar: http://centos.org/modules/smartfaq/faq.php?faqid=19

I took the above FAQ and made a working script you're free to play with: http://chico.benjamindsmith.com/wbel2centos4.sh

Good luck.

On Friday 06 January 2006 19:47, Sungsoo Kim wrote:

Hi, all!

I want to change current RHEL 4.0 ES into CentOS 4.2 on Sun X4100 server. The server has SAS SCSI based two 2.5" hard disks. I could only install RHEL 4.0 Update 1 because the server is equipped with RHEL 4.0 Update 1's device driver only.

I've included below the boot process messages concerned with SCSI

controller.

If it's possible for me to install CentOS 4.0 on my X4100, I am ready to switch to it.

TIA

Sungsoo Kim

---

SCSI subsystem initialized Fusion MPT base driver 3.02.18 Copyright (c) 1999-2005 LSI Logic Corporation ACPI: PCI interrupt 0000:02:03.0[A] -> GSI 28 (level, low) -> IRQ 209 mptbase: Initiating ioc0 bringup ioc0: SAS1064: Capabilities={Initiator} Fusion MPT SCSI Host driver 3.02.18 scsi0 : ioc0: LSISAS1064, FwRev=01040000h, Ports=1, MaxQ=203, IRQ=209 Vendor: FUJITSU Model: MAV2073RCSUN72G Rev: 0301 Type: Direct-Access ANSI SCSI revision: 04 SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB) SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 Attached scsi disk sda at scsi0, channel 0, id 2, lun 0 Vendor: FUJITSU Model: MAV2073RCSUN72G Rev: 0301 Type: Direct-Access ANSI SCSI revision: 04 SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB) SCSI device sdb: drive cache: write through sdb: sdb1 Attached scsi disk sdb at scsi0, channel 0, id 3, lun 0

Dear Hughes,

Thank you for your reply!

As you metioned I installed device driver when I installed RHEL 4.0 U1 by typing "linux dd" and inserting device driver CD according to X4100's installation manual.

I just intalled RHES 4.0 U1, not updated anything. So the running kernel version is kernel-smp-2.6.9-11.EL as shown below.

[root@atlas ~]# uname -a Linux atlas 2.6.9-11.ELsmp #1 SMP Fri May 20 18:25:30 EDT 2005 x86_64 x86_64 x86_64 GNU/Linux

Thanks a lot!

Sungsoo Kim

----- Original Message ----- From: "Johnny Hughes" mailing-lists@hughesjr.com To: "CentOS ML" centos@centos.org Sent: Saturday, January 07, 2006 7:30 PM Subject: Re: [CentOS] Can I install CentOS 4.2 on Sun X4100?

On Sat, 2006-01-07 at 12:47 +0900, Sungsoo Kim wrote:

Hi, all!

I want to change current RHEL 4.0 ES into CentOS 4.2 on Sun X4100 server. The server has SAS SCSI based two 2.5" hard disks. I could only install RHEL 4.0 Update 1 because the server is equipped with RHEL 4.0 Update 1's device driver only.

This means that you installed a driver when you installed the OS ... do you still have the RHEL kernel what shipped with update 1 .. or have you upgraded the kernel since then.

Have you done any other updates (besides the kernel) since update 1?

What is the output of this command:

uname -a

I've included below the boot process messages concerned with SCSI controller. If it's possible for me to install CentOS 4.0 on my X4100, I am ready to switch to it.

TIA

Sungsoo Kim

---

SCSI subsystem initialized Fusion MPT base driver 3.02.18 Copyright (c) 1999-2005 LSI Logic Corporation ACPI: PCI interrupt 0000:02:03.0[A] -> GSI 28 (level, low) -> IRQ 209 mptbase: Initiating ioc0 bringup ioc0: SAS1064: Capabilities={Initiator} Fusion MPT SCSI Host driver 3.02.18 scsi0 : ioc0: LSISAS1064, FwRev=01040000h, Ports=1, MaxQ=203, IRQ=209 Vendor: FUJITSU Model: MAV2073RCSUN72G Rev: 0301 Type: Direct-Access ANSI SCSI revision: 04 SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB) SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 Attached scsi disk sda at scsi0, channel 0, id 2, lun 0 Vendor: FUJITSU Model: MAV2073RCSUN72G Rev: 0301 Type: Direct-Access ANSI SCSI revision: 04 SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB) SCSI device sdb: drive cache: write through sdb: sdb1 Attached scsi disk sdb at scsi0, channel 0, id 3, lun 0 _______________________________________________

More important than anything else is figuring out what kernel you need to use. There is a forzen CentOS-4.1 tree at http://vault.centos.org that has all the 4.1 kernels.

(In CentOS ... 4.0 is the original release, 4.1 is update 1, 4.2 is update 2, etc.)

After the kernel issues are defined, a plan for doing a switch can be put together. Is there a driver source so that you can build a new driver for new kernels (if required)?