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System Administration Guide: Devices and File Systems Oracle Solaris 10 1/13 Information Library |
1. Managing Removable Media (Overview/Tasks)
2. Writing CDs and DVDs (Tasks)
4. Dynamically Configuring Devices (Tasks)
5. Managing USB Devices (Tasks)
6. Using InfiniBand Devices (Overview/Tasks)
9. Administering Disks (Tasks)
10. SPARC: Setting Up Disks (Tasks)
11. x86: Setting Up Disks (Tasks)
12. Configuring Oracle Solaris iSCSI Targets (Tasks)
13. The format Utility (Reference)
14. Managing File Systems (Overview)
15. Creating and Mounting File Systems (Tasks)
16. Configuring Additional Swap Space (Tasks)
17. Checking UFS File System Consistency (Tasks)
18. UFS File System (Reference)
19. Backing Up and Restoring UFS File Systems (Overview/Tasks)
20. Using UFS Snapshots (Tasks)
21. Copying Files and File Systems (Tasks)
Commands for Copying File Systems
Copying Files and File Systems to Tape
Copying Files to Tape (tar Command)
How to Copy Files to a Tape (tar)
How to List the Files on a Tape (tar)
How to Retrieve Files From a Tape (tar)
Copying Files to a Tape With the pax Command
How to Copy Files to a Tape (pax)
Copying Files to Tape With the cpio Command
How to Copy All Files in a Directory to a Tape (cpio)
How to List the Files on a Tape (cpio)
How to Retrieve All Files From a Tape (cpio)
How to Retrieve Specific Files From a Tape (cpio)
Copying Files to a Remote Tape Device
How to Copy Files to a Remote Tape Device (tar and dd)
How to Extract Files From a Remote Tape Device
22. Managing Tape Drives (Tasks)
You can use the cpio (copy in and out) command to copy individual files, groups of files, or complete file systems. This section describes how to use the cpio command to copy complete file systems.
The cpio command is an archiving program that copies a list of files into a single, large output file. This command inserts headers between the individual files to facilitate recovery. You can use the cpio command to copy complete file systems to another slice, another system, or to a media device, such as a tape or diskette.
Because the cpio command recognizes end-of-media and prompts you to insert another volume, it is the most effective command, other than ufsdump, to use to create archives that require multiple tapes or diskettes.
With the cpio command, you frequently use the ls and find commands to list and select the files you want to copy, and then to pipe the output to the cpio command.
# cd filesystem1
# find . -print -depth | cpio -pdm filesystem2
Starts in the current working directory.
Prints the file names.
Descends the directory hierarchy and prints file names from the bottom up.
Creates a list of files.
Creates directories as needed.
Sets the correct modification times on directories.
For more information, see cpio(1).
The files from the directory name you specify are copied. The symbolic links are preserved.
You might also specify the -u option. This option forces an unconditional copy. Otherwise, older files do not replace newer files. This option might be useful if you want an exact copy of a directory, and some of the files being copied might already exist in the target directory.
# cd filesystem2 # ls
# rm -rf filesystem1
Example 21-1 Copying Directories Between File Systems (cpio)
# cd /data1 # find . -print -depth | cpio -pdm /data2 19013 blocks # cd /data2 # ls # rm -rf /data1