The reverse operation of the dump command.
The restore command is the inverse of the dump command, used to restore backup files created by the dump command. While dumping is used for backing up files, restoration is the process of writing these backed-up files back to the system.
restore(options)
-b<block_size>: Sets the block size in bytes.
-c: Does not check the dump format; only allows reading backup files in the old format.
-C: Comparison mode; compares the backup files with the current files.
-D<filesystem>: Allows the user to specify the name of the filesystem.
-f<backup_file>: Reads backup data from the specified file for restoration.
-h: Extracts only the directory itself, excluding all files related to that directory.
-i: Interactive mode; the restore command will prompt the user sequentially during restoration.
-m: Extracts files or directories matching specified inode numbers instead of filenames.
-r: Performs the restoration operation.
-R: When restoring the entire filesystem, checks where the restoration should begin.
-s<file_number>: When backup data spans multiple tapes, specifies the backup file number.
-t: Lists the names of the specified files if they exist in the backup.
-v: Displays detailed information during command execution.
-x: Extracts specified files from the storage medium and restores them to the filesystem if they exist in the backup.
-y: Does not prompt for confirmation; assumes "yes" to all questions and continues.
Create a backup using the dump command:
dump -9 -u -f /dev/hda3 /home/frank/
Restore the backup using the restore command:
restore rf /dev/hda3 /home/frank
View the list of files in the backup using the restore command:
restore ft /dev/hda3