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clone disk
Post 302102616 by stamperr on Thursday 11th of January 2007 03:47:13 PM
01-11-2007
clone disk
Disk cloning
I had an external SCSI master disk that I used to clone to an identical external SCSI disk because the other SCSI disk would become corrupted. My original Master became corrupted so I used one of the other to good disk to copy back to the master. Unfortunately the new master needs to be able to boot but I don't know how to make the new master a bootable disk. I do not know anything about Unix commands and have been following a set of instructions that someone made 6 years ago.
I took a known good disk when I got to step 12 I reversed the 6 letter ID names and followed the rest of the instructions. I started the instructions over again and when I get to step 11 and try to log in as root is says that is a non bootable disk.
I am adding the instructions so someone with knowledge about UNIX might be able to make sense of this.
1. Power down the workstation and the external load disk.
2. Replace the external load disk with this disk (clone).
3. Power up this disk (clone).
4. Power up the workstation.
5. When you see the display and the message “Initializing memory” press<STOP A>.
6. At the OK prompt type: setenv use-nvramrc? True
7. At the OK prompt type: show-disks
8. Select drive a by pressing the A key.
9. At the OK prompt type: nvalias clone <CTRL Y>@1,0) (press ctrl y followed by @ followed by 1 followed by comma followed by zero)
10. At the OK prompt type: Boot clone (machine will boot of the clone disk)
11. Log in as root. (Type in Password)
12. In a terminal window type: ./copydisk donotpart c1t1d0 c0t0d0
13. When asked of you would like to modify /etc/vfstab on the target disk? Type Y <return>
14. When asked to enter the new 6 letter disk id for thee target- type c0t0d0 <return>
15. At the # prompt type init 0
16. When the OK prompt appears power down the workstation and the external disk (clone).
17. Replace the external disk (clone) with the external load disk.
18. Power up the external load disk.
19. Power up the workstation.
20. Log in.
I had an external SCSI master disk that I used to clone to an identical external SCSI disk because the other SCSI disk would become corrupted. My original Master became corrupted so I used one of the other to good disk to copy back to the master. Unfortunately the new master needs to be able to boot but I don't know how to make the new master a bootable disk. I do not know anything about Unix commands and have been following a set of instructions that someone made 6 years ago.
I took a known good disk when I got to step 12 I reversed the 6 letter ID names and followed the rest of the instructions. I started the instructions over again and when I get to step 11 and try to log in as root is says that is a non bootable disk.
I am adding the instructions so someone with knowledge about UNIX might be able to make sense of this.
1. Power down the workstation and the external load disk.
2. Replace the external load disk with this disk (clone).
3. Power up this disk (clone).
4. Power up the workstation.
5. When you see the display and the message “Initializing memory” press<STOP A>.
6. At the OK prompt type: setenv use-nvramrc? True
7. At the OK prompt type: show-disks
8. Select drive a by pressing the A key.
9. At the OK prompt type: nvalias clone <CTRL Y>@1,0) (press ctrl y followed by @ followed by 1 followed by comma followed by zero)
10. At the OK prompt type: Boot clone (machine will boot of the clone disk)
11. Log in as root. (Type in Password)
12. In a terminal window type: ./copydisk donotpart c1t1d0 c0t0d0
13. When asked of you would like to modify /etc/vfstab on the target disk? Type Y <return>
14. When asked to enter the new 6 letter disk id for thee target- type c0t0d0 <return>
15. At the # prompt type init 0
16. When the OK prompt appears power down the workstation and the external disk (clone).
17. Replace the external disk (clone) with the external load disk.
18. Power up the external load disk.
19. Power up the workstation.
20. Log in.
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LEARN ABOUT CENTOS
mkfs.minix
MKFS.MINIX(8) System Administration MKFS.MINIX(8) NAME
mkfs.minix - make a Minix filesystem SYNOPSIS
mkfs.minix [-c|-l filename] [-n namelength] [-i inodecount] [-v] device [size-in-blocks] DESCRIPTION
mkfs.minix creates a Linux MINIX filesystem on a device (usually a disk partition). The device is usually of the following form: /dev/hda[1-8] (IDE disk 1) /dev/hdb[1-8] (IDE disk 2) /dev/sda[1-8] (SCSI disk 1) /dev/sdb[1-8] (SCSI disk 2) The size-in-blocks parameter is the desired size of the file system, in blocks. It is present only for backwards compatibility. If omit- ted the size will be determined automatically. Only block counts strictly greater than 10 and strictly less than 65536 are allowed. OPTIONS
-c Check the device for bad blocks before creating the filesystem. If any are found, the count is printed. -n namelength Specify the maximum length of filenames. Currently, the only allowable values are 14 and 30. The default is 30. Note that kernels older than 0.99p7 only accept namelength 14. -i inodecount Specify the number of inodes for the filesystem. -l filename Read the list of bad blocks from filename. The file has one bad-block number per line. The count of bad blocks read is printed. -1 Make a Minix version 1 filesystem. -2, -v Make a Minix version 2 filesystem. -3 Make a Minix version 3 filesystem. EXIT CODES
The exit code returned by mkfs.minix is one of the following: 0 No errors 8 Operational error 16 Usage or syntax error SEE ALSO
mkfs(8), fsck(8), reboot(8) AVAILABILITY
The mkfs.minix command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux June 2011 MKFS.MINIX(8)