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Allow to copy ZFS datasets in "raw" mode (with "-Lec" set)
author Franz Glasner <hg@dom66.de>
date Tue, 16 Aug 2022 11:51:05 +0200
parents 9ffbe53dbc35
children 6c144aca8ac5
comparison
equal deleted inserted replaced
177:9ffbe53dbc35 178:00fbf2b4b44f
48 copy SOURCE-DATASET DEST-DATASET 48 copy SOURCE-DATASET DEST-DATASET
49 49
50 Copy a tree of ZFS datasets with "zfs send -R" and "zfs receive". 50 Copy a tree of ZFS datasets with "zfs send -R" and "zfs receive".
51 Note that the destination dataset must not exist already. 51 Note that the destination dataset must not exist already.
52 52
53 -r Copy the datasets with the -Lec options (aka "raw")
53 -u Do not automatically mount received datasets 54 -u Do not automatically mount received datasets
54 55
55 ENVIRONMENT: 56 ENVIRONMENT:
56 57
57 All environment variables that affect "zfs" are effective also. 58 All environment variables that affect "zfs" are effective also.
253 # command_copy source-dataset destination-dataset 254 # command_copy source-dataset destination-dataset
254 # 255 #
255 command_copy() { 256 command_copy() {
256 # source dataset -- destination dataset 257 # source dataset -- destination dataset
257 local _source _dest 258 local _source _dest
258 # dynamic ZFS options 259 # dynamic ZFS options -- ZFS copy options
259 local _zfsopts 260 local _zfsopts _zfscopyopts
260 261
261 _zfsopts="" 262 _zfsopts=""
262 while getopts "u" _opt ; do 263 _zfscopyopts=""
264 while getopts "ru" _opt ; do
263 case ${_opt} in 265 case ${_opt} in
266 r)
267 # Use raw datasets
268 _zfscopyopts="-Lec"
264 u) 269 u)
265 # do not mount newly created datasets 270 # do not mount newly created datasets
266 _zfsopts="${_zfsopts} -u" 271 _zfsopts="${_zfsopts} -u"
267 ;; 272 ;;
268 \?|:) 273 \?|:)
281 _dest="$2" 286 _dest="$2"
282 if [ -z "${_dest}" ]; then 287 if [ -z "${_dest}" ]; then
283 echo "ERROR: no source dataset given" >&2 288 echo "ERROR: no source dataset given" >&2
284 return 2 289 return 2
285 fi 290 fi
286 zfs send -R -n -v ${_source} || { echo "ERROR: ZFS operation failed in no-op mode" >&2; return 1; } 291 zfs send -R ${_zfscopyopts} -n -v "${_source}" || { echo "ERROR: ZFS operation failed in no-op mode" >&2; return 1; }
287 zfs send -R "${_source}" | zfs receive ${_zfsopts} "${_dest}" || { echo "ERROR: ZFS operation failed" >&2; return 1; } 292 zfs send -R ${_zfscopyopts} "${_source}" | zfs receive ${_zfsopts} "${_dest}" || { echo "ERROR: ZFS operation failed" >&2; return 1; }
288 } 293 }
289 294
290 295
291 # 296 #
292 # "privs" -- adjust privileges 297 # "privs" -- adjust privileges