This command does not reports the warning : find . -depth -print | cpio --create --format='newc' > ../../initrd.img-5.10.0-19-amd64 554538 blocks.
and : # cat initrd.img-5.10.0-19-amd64-depth | cpio -t | sort >/tmp/with_depth 554538 blocks # cat initrd.img-5.10.0-19-amd64-depth | cpio -t | sort >/tmp/no_depth 554538 blocks # diff with_depth no_depth | less no difference. Il giorno ven 28 ott 2022 alle ore 12:46 Thomas Schmitt <[email protected]> ha scritto: > Hi, > > Mario Marietto wrote: > > There are some kb of difference between the files produced by the two > > techniques : > > 79.3 MiB (83,106,001 byte) : find . -print -depth | cpio --create > > --format='newc' > ../../initrd.img-5.10.0-18-amd64 > > 79.3 MiB (83,108,291 byte) : find . | cpio --create --format='newc' > > > ../../initrd.img-5.10.0-18-amd64 > > I would only worry if cpio -t would show significant differences. > The find option -depth influences the sequence of names. So i would do: > > find . -print -depth | cpio ... > > cat ../../initrd.img-5.10.0-18-amd64 | cpio -t | sort >/tmp/with_depth > > find . | cpio ... > > cat ../../initrd.img-5.10.0-18-amd64 | cpio -t | sort >/tmp/without_depth > > diff /tmp/with_depth /tmp/without_depth | less > > If the content is the same, then no differences should be reported. > > > The documentation of cpio states that the find run with -depth is to > prefer. > > The '-depth' option forces 'find' to print of the entries in a > directory before printing the directory itself. This limits the effects > of restrictive directory permissions by printing the directory entries > in a directory before the directory name itself. > > Probably this means that at restore time potential write resctrictions > of the directory will only be applied after the files of the directory > have been copied out of the cpio archive into the directory. > > > > find: warning: you have specified the global option -depth after the > > argument -print, but global options are not positional, i.e., -depth > affects > > tests specified before it as well as those specified after it. Please > > specify global options before other arguments. > > > > It is a warning,not an error. But why does it happens ? Can I "fx" it ? > > Follow the program's advise and do not put -print before -depth. > I get no warning with > > find . -depth 2>&1 | less > > find . -depth -print 2>&1 | less > > -print is surplus here, anyways. man find says: > > find [-H] [-L] [-P] [-D debugopts] [-Olevel] [path...] [expression] > ... > If no expression is given, the expression -print is used > > > (Do you really get that warning from > find . 2>&1 | less > ? There is no -depth to complain about, and my local find does not warn.) > > > Have a nice day :) > > Thomas > > -- Mario.
