Messages in this thread | | | Date | Tue, 15 Jan 2002 19:33:24 -0800 | From | "H. Peter Anvin" <> | Subject | Re: initramfs buffer spec -- second draft |
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Andreas Dilger wrote:
>> > Well, a few quick tests show (GNU cpio version 2.4.2), with raw sizes > in "blocks" as output by cpio, compressed sizes in bytes: > > find <dir> | cpio -o -H <format> | gzip -9 | wc -c > > dir bin (default) newc (proposed) > raw gzip raw gzip > /sbin 15121 3289678 12952 2769451 > /etc 8822 689517 8996 693700 > /usr/local/sbin 1895 385461 1899 385764 > > The binary format reports lots of "truncating inode number", but for > the purpose of initramfs, that is not an issue as we don't anticipate > more than 64k files. I don't know why the /sbin test is so heavily > in favour of the newc (ASCII) format, but I repeated it to confirm > the numbers. >
Probably because it does hard links.
-hpa
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