--- name: "ocs-sr" section: "8" platform: "linux" package: "clonezilla" version: "5.19.7-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/ocs-sr" --- # ocs-sr(8) Clonezilla: save or restore a disk or partition(s) ## NAME ocs-sr - Clonezilla: save or restore a disk or partition(s) ## SYNOPSIS **ocs-sr** \[*OPTION*\] {*savedisk*\|*saveparts*\|*restoredisk*\|*restoreparts*} *IMAGE\_NAME* *DEVICE* ## DESCRIPTION **ocs-sr** is the main command of Clonezilla to save or restore a disk or partition(s). It is usually used in Clonezilla live or in a DRBL environment. ## COMMANDS - **savedisk** Save the entire disk(s) as an image. - **saveparts** Save the partition(s) as an image. - **restoredisk** Restore the image to the entire disk(s). - **restoreparts** Restore the image to the partition(s). ## OPTIONS ### Options for saving: - **-noabo, --not-only-access-by-owner** Make the image of partition accessible by others (mode 644). Default is 600. - **-senc, --skip-enc-ocs-img** Skip encrypting the image with passphrase. - **-enc, --enc-ocs-img** Encrypt the image with passphrase via ecryptfs. - **-sgoc, --skip-gocrypt-ocs-img** Skip encrypting the image with passphrase (gocryptfs). - **-goc, --gocrypt-ocs-img** Encrypt the image with passphrase via gocryptfs. - **-sfsck, --skip-fsck-src-part** Skip running fsck on the source file system before saving it. - **-fsck, -fsck-src-part, --fsck-src-part** Run fsck interactively on the source file system before saving it. - **-fsck-y, -fsck-src-part-y, --fsck-src-part-y** Run fsck automatically on the source file system before saving it. Attempt to fix any detected filesystem corruption automatically. - **-gm, --gen-md5sum** Generate the MD5 checksum for the image. - **-gs, --gen-sha1sum** Generate the SHA1 checksum for the image. - **-gb2, -gb, --gen-b2sum** Generate the BLAKE2 checksum for the image. - **-gb3, --gen-b3sum** Generate the BLAKE3 checksum for the image. - **-gmf, --gen-chksum-for-files-in-dev** Generate the checksum for files in the source device. - **-i, --image-size SIZE** Set the size in MB to split the partition image file into multiple volumes files. - **-j2, --clone-hidden-data** Use dd to clone the image of the data between MBR (1st sector) and 1st partition. - **-ntfs-ok, --ntfs-ok** Assume the NTFS integrity is OK, do NOT check again (for ntfsclone only). - **-rm-win-swap-hib, --rm-win-swap-hib** Try to remove the MS windows swap file and hibernation file in the source partition. - **-q, --use-ntfsclone** Use ntfsclone to save NTFS partition (Priority: ntfsclone \> partimage \> dd). - **-q1, --force-to-use-dd** Force to use dd to save partition(s) (inefficient, slow, but works for all file systems). - **-q2, --use-partclone** Use partclone to save partition(s) (Priority: partclone \> partimage \> dd). - **-rescue, --rescue** Turn on rescue mode, i.e. try to skip bad sectors. - **-sc, -scs, --skip-check-restorable, --skip-check-restorable-s** Skip checking if the image is restorable after it is created. - **-z0, --no-compress** Don't compress when saving. - **-z1, --gzip-compress** Compress using gzip (default). - **-z1p, --smp-gzip-compress** Compress using parallel gzip program (pigz). - **-z2, --bz2-compress** Compress using bzip2. - **-z2p, --smp-bzip2-compress** Compress using parallel bzip2 program (lbzip2). - **-z3, --lzo-compress** Compress using lzop. - **-z4, --lzma-compress** Compress using lzma. - **-z5, --xz-compress** Compress using xz. - **-z5p, --smp-xz-compress** Compress using parallel xz. - **-z6, --lzip-compress** Compress using lzip. - **-z6p, --smp-lzip-compress** Compress using parallel lzip. - **-z7, --lrzip-compress** Compress using lrzip. - **-z8, --lz4-compress** Compress using lz4. - **-z8p, --lz4mt-compress** Compress using multi-threaded lz4. - **-z9, --zstd-compress** Compress using zstd. - **-z9p, --zstdmt-compress** Compress using parallel zstd (zstdmt). - **-sfs, --skip-fs-save** Do not save the file system for device, just save the rest of files. - **-pe, --passwd-ecryptfs PASSWD** Set the password to encrypt the image (ecryptfs). - **-pfe, --passwd-file-ecryptfs FILE** Set the password to encrypt the image in the FILE (ecryptfs). - **-pg, --passwd-gocryptfs PASSWD** Set the password to encrypt the image (gocryptfs). - **-pfg, --passwd-file-gocryptfs FILE** Set the password to encrypt the image in the FILE (gocryptfs). - **-plu, --put-log-files-usb** Put Clonezilla live related log files to Clonezilla live USB drive. - **-scpt, --skip-check-part-table** Skip checking the partition table of the source disk. - **-luks, --enable-luks MODE** Open LUKS device or not. MODE can be either yes or no. - **-dblk, --decrypt-bitlocker MODE** Decrypt BitLocker device or not. MODE can be either yes or no. ### Options for restoring: - **-f, --from-part PARTITION** Restore the partition from image or block device to a different partition. - **-g, --grub-install GRUB\_PARTITION** Install grub in the MBR. GRUB\_PARTITION can be "auto" or a device name. - **-r, --resize-partition** Resize the partition to fit the target partition size. - **-k, --no-fdisk, --no-create-partition** Do NOT create partition table in target harddisk. - **-icrc** Skip Partclone CRC checking. - **-irhr** Skip removing the Linux udev hardware records on the restored GNU/Linux. - **-irvd** Skip removing the NTFS volume dirty flag after restoration. - **-ius** Skip updating syslinux-related files on the restored GNU/Linux. - **-iui** Skip updating initramfs file(s) on the restored GNU/Linux. - **-icds, --ignore-chk-dsk-size-pt** Skip checking destination disk size before creating the partition table. - **-iefi, --ignore-update-efi-nvram** Skip updating boot entries in EFI NVRAM after restoring. - **-k0** Create partition table based on the partition table from the image (default). - **-k1** Create partition table in the target disk proportionally. - **-k2** Enter command line prompt to create partition table manually before restoring. - **-scr, --skip-check-restorable-r** Skip checking the image if restorable before restoring. - **-t, --no-restore-mbr** Do NOT restore the MBR. - **-t1, --restore-raw-mbr** Restore the prebuilt bootloader from syslinux (For Windows only). - **-t2, --no-restore-ebr** Do NOT restore the EBR. - **-u, --select-img-in-client** Input the image name in clients. - **-e, --load-geometry** Force to use the saved CHS (cylinders, heads, sectors). - **-e1, --change-geometry NTFS-BOOT-PARTITION** Force to change the CHS value of NTFS boot partition after image is restored. - **-e2, --load-geometry-from-edd** Force to use the CHS from EDD (Enhanced Disk Device). - **-j, --create-part-by-sfdisk** Use sfdisk to create partition table (default). - **-j0, --create-part-by-dd** Use dd to dump the partition table from saved image instead of sfdisk. - **-j1, --dump-mbr-in-the-end** Use dd to dump the MBR after disk image was restored. - **-j2, --clone-hidden-data** Use dd to clone data between MBR and 1st partition (restoredisk mode only). - **-hn0 PREFIX** Change the hostname of MS Windows based on PREFIX-IP. - **-hn1 PREFIX** Change the hostname of MS Windows based on PREFIX-MAC. - **--max-time-to-wait TIME** When not enough clients have connected, start anyways after TIME seconds. - **-cm, --check-md5sum** Check the MD5 checksum for the image. - **-cs, --check-sha1sum** Check the SHA1 checksum for the image. - **-cb2, -cb, --check-b2sum** Check the BLAKE2 checksum for the image. - **-cb3, --check-b3sum** Check the BLAKE3 checksum for the image. - **-cmf, --chk-chksum-for-files-in-dev** Check the checksum for the files in the device. - **-srel, --save-restore-error-log** Save the error log file in the image dir. - **--mcast-port NO** Assign the udp port number for multicast restore. - **-ssnf, --skip-set-netboot-first** Skip setting 1st boot device as network in uEFI NVRAM. ### General options: - **-l, --language INDEX** Set the language to be shown by index number (e.g., 0 or en\_US.UTF-8). - **-b, -batch, --batch** Run program in batch mode (dangerous!). - **-c, --confirm** Wait for confirmation before saving or restoring. - **-d, --debug-mode** Enter command mode to debug. - **--debug=LEVEL** Output the partimage debug log in directory /var/log/ with debug LEVEL. - **-m, --module MODULE** Force to load kernel module MODULE. - **--use-netcat** Use netcat instead of nuttcp for network clone. - **--net-filter PROGRAM** Use PROGRAM (gzip, bzip2, xz, lz4, zstd, cat) as network filter. - **-o0, --run-prerun-dir** Run the script in prerun directory before clone is started. - **-o1, -o, --run-postrun-dir** Run the script in postrun directory when clone is finished. - **-w, --wait-time TIME** Wait for TIME seconds before saving/restoring. - **-nogui, --nogui** Do not show GUI (TUI), use text only. - **-a, --no-force-dma-on** Do not force to turn on HD DMA. - **-mp, --mount-point MOUNT\_POINT** Use NFS to mount MOUNT\_POINT as directory ocsroot. - **-or, --ocsroot DIR** Specify DIR (absolute path) as directory ocsroot. - **-p, --postaction ACTION** Action when finished: \[choose\|poweroff\|reboot\|command\|CMD\]. - **-ps, --play-sound** Play sound when the job is done. - **-ns, --ntfs-progress-in-image-dir** Save the ntfsclone progress tmp file in the image dir. - **-s, --source-IP IPADD** Assign the IP address of source machine for device to device cloning. - **-bm, --beginner-mode** Run in beginner mode. - **-em, --expert-mode** Run in expert mode. - **-um, --user-mode \[beginner\|expert\]** Specify the user mode. - **-edio, --enable-direct-io** Enable the direct IO mode of Partclone for NVMe SSD. - **-smtd, --save-mtdblock** Save MTD block device. - **-smmcb, --save-mmcblk** Save eMMC boot device. - **-rmtd, --restore-mtdblock** Restore MTD block device. - **-rmmcb, --restore-mmcblk** Restore eMMC boot device. - **-uoab, --use-ocs-alias-blkdev** Use Clonezilla alias block device name (e.g., ocs-\*d\*). - **-reluks, --reencrypt-luks** Reencrypt LUKS encrypted volumes in-place. - **-v, --verbose** Prints verbose information. - **-d0, --dialog** Use dialog. - **-d1, --Xdialog** Use Xdialog. - **-d2, --whiptail** Use whiptail. - **-d3, --gdialog** Use gdialog. - **-d4, --kdialog** Use kdialog. - **-x, --interactive** Interactive mode. - **-os, --ocs-server SRV** Assign the OCS server as SRV. ## RESERVED WORDS ### For IMAGE\_NAME: - **ask\_user** Prompt user to input a name. - **autoname** Automatically generate image name based on MAC address and time. - **autohostname** Automatically generate image name based on hostname. - **autoproductname** Automatically generate image name based on hardware product model. ### For DEVICE: - **ask\_user** Prompt user to select the source device. - **all** Select all unmounted local disks or partitions. ## EXAMPLES To save all data in local 1st harddrive 'sda' as image 'IMAGE1', use ntfsclone, and lzop compression: - ocs-sr --use-ntfsclone -z3 savedisk IMAGE1 sda To save the data in 1st and 2nd partition in local first harddrive 'sda' as image 'IMAGE2', use ntfsclone: - ocs-sr --use-ntfsclone -z3 saveparts IMAGE2 "sda1 sda2" To restore image IMAGE1 to local sda, and grub-install will be run after cloning: - ocs-sr -g auto restoredisk IMAGE1 sda To restore the image for the 1st and 2nd partition from IMAGE2 to local sda1 and sda2, and grub-install will be run after restoring: - ocs-sr -g auto restoreparts IMAGE2 "sda1 sda2" To save disk(s)/partition(s) as an image or restore an image to disk(s)/partition(s) interactively, use: - ocs-sr -x ## FILES - */etc/drbl/drbl-ocs.conf* The configuration file for Clonezilla. ## SEE ALSO **drbl-ocs**(8), [**ocs-onthefly**(8)](/ocs-onthefly/8.md) ## AUTHORS Steven Shiau \