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Full Discussion: server harddisk upgrade
Top Forums UNIX for Dummies Questions & Answers server harddisk upgrade Post 16502 by #1freebsddude on Saturday 2nd of March 2002 11:56:08 PM
Old 03-03-2002
OK, I shall attempt to help, maybe someone can browse this
and suggest any corrections, if necessary.

I am not a SCO person, but I can try giving you some idea(s).

1. Connect the new drive and create all the necessary slices (I am assuming that each slice is a seperate partition) on it. You will need to make your new drive bootable as well. Of course the scsi id of the new drive has to be different than the old drive unless you are using SCAM (auto SCSI numbering).

2. Mount the n new slices as /new, /user1new, /user2new /user3new

i.e. mount /dev/sd02a /new
mount /dev/sd02b /user1new
...
...


3. From every old slice , copy the contents to the corresponding new slice:

cd /user1
find / | cpio -dumpv /user1new

repeat for 1 ... n

4. cd to your new root partition, say /new (meaning anything that was in / on the old drive is in /new slice).

5. Adjust any device/link reference(s) for your old drive with the new drive

6. Adjust/update your /fstab to mount /disk1,2,3 with new device name(s).

7. Shutdown & disconnect old drive, make sure that the scsi id on new drive is adjusted or the scsi bios knows how to reboot from the new drive. Pray hard, reboot to ensure that the new slices mount appropriately.

8. Good Luck!
 

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HD(4)							     Linux Programmer's Manual							     HD(4)

NAME
hd - MFM/IDE hard disk devices DESCRIPTION
The hd* devices are block devices to access MFM/IDE hard disk drives in raw mode. The master drive on the primary IDE controller (major device number 3) is hda; the slave drive is hdb. The master drive of the second controller (major device number 22) is hdc and the slave hdd. General IDE block device names have the form hdX, or hdXP, where X is a letter denoting the physical drive, and P is a number denoting the partition on that physical drive. The first form, hdX, is used to address the whole drive. Partition numbers are assigned in the order the partitions are discovered, and only nonempty, nonextended partitions get a number. However, partition numbers 1-4 are given to the four partitions described in the MBR (the "primary" partitions), regardless of whether they are unused or extended. Thus, the first logi- cal partition will be hdX5. Both DOS-type partitioning and BSD-disklabel partitioning are supported. You can have at most 63 partitions on an IDE disk. For example, /dev/hda refers to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS "primary" partition on the second one. They are typically created by: mknod -m 660 /dev/hda b 3 0 mknod -m 660 /dev/hda1 b 3 1 mknod -m 660 /dev/hda2 b 3 2 ... mknod -m 660 /dev/hda8 b 3 8 mknod -m 660 /dev/hdb b 3 64 mknod -m 660 /dev/hdb1 b 3 65 mknod -m 660 /dev/hdb2 b 3 66 ... mknod -m 660 /dev/hdb8 b 3 72 chown root:disk /dev/hd* FILES
/dev/hd* SEE ALSO
chown(1), mknod(1), sd(4), mount(8) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 1992-12-17 HD(4)
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