On Apr 18, 2007, at 11:47 PM, jignesh gangani wrote: > Hi, > As far as I now when you take a backup (using cp -a) and store > it on CD/DVD, when you restore you may lost some permission on > files. e.g. su losts it set-uid bit, /tmp losts it's saved-text bit > and files may lost write permission. I haven't burned the tar.bz2 > file on a CD/DVD. After restoring the backup you may have to change > lots of permissions. So the best solution I have found is to copy > all files to another HD (of you have one extra, a small one will > do) having the same file system as your CLFS (ext2, ext3, reiserfs > etc). This way you can just copy the backup files and there will be > no need for changing permission or so. > -- > > Jignesh D. Gangani > -- > http://linuxfromscratch.org/mailman/listinfo/blfs-support > FAQ: http://www.linuxfromscratch.org/blfs/faq.html > Unsubscribe: See the above information page
Hi there, It's best to use some archiving method that will retain permissions... like tar! cp -a does -dpR which is: -d same as --no-dereference --preserve=link E -p same as --preserve=mode,ownership,timestamps -R same as -r --recursive copy directories recusively When you use a medium as cd or dvd using iso9660 use tar, not cp, ok? As far as I know, when you copy from a CD the files end up being read only and whatever else, you need to use tar or cpio and put it all in it's own container. Use tar to retain permissions! tar then back up, and if you use a character device like a tape, you can just tar to that device. tar cpf! Sincerely, William -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page