How about /proc/kcore (which really must not be restored)? N
On Sat, 5 Nov 2016 19:39:26 -0700 Paul Eggert <egg...@cs.ucla.edu> wrote: > 積丹尼 Dan Jacobson wrote: > > Well the archive created sure has a lot of their content. od -c will > > prove it to you. > > No, the archive contains only metadata, not contents. For example: > > $ cd /proc/self > $ tar -cf - limits | od -c > 0000000 l i m i t s \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 > 0000020 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 > * > 0000140 \0 \0 \0 \0 0 0 0 0 4 4 4 \0 0 0 0 1 > 0000160 7 5 0 \0 0 0 0 1 7 5 0 \0 0 0 0 0 > 0000200 0 0 0 0 0 0 0 \0 1 3 0 0 7 5 1 3 > 0000220 3 1 2 \0 0 1 1 5 7 5 \0 0 \0 \0 \0 > 0000240 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 > * > 0000400 \0 u s t a r \0 e g g e r t \0 > 0000420 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 > 0000440 \0 \0 \0 \0 \0 \0 \0 \0 \0 e g g e r t \0 > 0000460 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 > * > 0024000 > > This contains metadata, which are something like this: > > $ stat limits > File: 'limits' > Size: 0 Blocks: 0 IO Block: 1024 regular empty file > Device: 4h/4d Inode: 304543 Links: 1 > Access: (0444/-r--r--r--) Uid: ( 1000/ eggert) Gid: ( 1000/ eggert) > Access: 2016-11-05 19:34:50.841898208 -0700 > Modify: 2016-11-05 19:34:50.841898208 -0700 > Change: 2016-11-05 19:34:50.841898208 -0700 > Birth: - > > It does not contain the contents, which are something like this: > > $ cat limits > Limit Soft Limit Hard Limit Units > Max cpu time unlimited unlimited seconds > Max file size unlimited unlimited bytes > Max data size unlimited unlimited bytes > Max stack size 8720000 unlimited bytes > Max core file size 0 unlimited bytes > Max resident set unlimited unlimited bytes > Max processes 59772 59772 processes > Max open files 1024 65536 files > Max locked memory 65536 65536 bytes > Max address space unlimited unlimited bytes > Max file locks unlimited unlimited locks > Max pending signals 59772 59772 signals > Max msgqueue size 819200 819200 bytes > Max nice priority 0 0 > Max realtime priority 0 0 > Max realtime timeout unlimited unlimited us >
