Date: Wed, 10 Apr 2013 20:29:24 +0200 From: "Thomas Schmitt" <scdbackup@gmx.net> To: freebsd-stable@freebsd.org Subject: Re: Release ISO images have broken RockRidge data Message-ID: <4267633373880852212@scdbackup.webframe.org>
next in thread | raw e-mail | index | archive | help
Hi, Warren Block wrote: > sync will support hard links with -H But how shall rsync know that the files in the ISO image stem from hardlink siblings on the hard disk where the image was produced ? -------------------------------------------------------------------- I succeeded with this post-processing on a Linux system with bash after xorriso -for backup ... -extract / livefs : Learn the block address of content of /rescue/cat in the ISO image: lba=$(xorriso -indev ../FreeBSD-8.4-BETA1-amd64-livefs.iso \ -find /rescue/cat -exec report_lba -- 2>/dev/null | \ fgrep cat | \ awk '{print $6}') (Should yield 35682 with that image) Get a list of all files with that block address, except /rescue/cat : siblings=$(xorriso -indev ../FreeBSD-8.4-BETA1-amd64-livefs.iso \ -find / -sort_lba -lba_range "$lba" 1 \ -exec report_lba -- \ 2>/dev/null | \ grep '^File data lba' | awk '{print $12}' | \ sed -e "s/'//g" | grep -v '^/rescue/cat$' ) (This should yield 137 files: /rescue/[ ... /rescue/zpool ) Delete them in livefs/ and re-create them as links to livefs/rescue/cat: for i in $siblings do rm livefs$i ln livefs/rescue/cat livefs$i done This brings the size of livefs/rescue from 676772 KiB to 4924 KiB. ls -l livefs/rescue reports: total 676768 -r-xr-xr-x 138 thomas thomas 5007184 2013-03-20 04:14 [ -r-xr-xr-x 138 thomas thomas 5007184 2013-03-20 04:14 atacontrol ... -r-xr-xr-x 138 thomas thomas 5007184 2013-03-20 04:14 zpool -------------------------------------------------------------------- (Confessedly one could get the file list as well by ls -l and grepping for the size of livefs/rescue/cat.) -------------------------------------------------------------------- Have a nice day :) Thomas
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4267633373880852212>