reopen 903931 severity 903931 wishlist reassign 903931 initramfs-tools retitle 903931 please use gzip instead of zcat in unmkinitramfs thanks
Hi, asking upstream about it, he sais: "It seems that there are two ways of implementing *zcat programs out there. The zcat from zutils is a complete implementation of a cat program like the one from GNU coreutils[2] but with transparent decompression. I have invested a lot of work to make it work well. [2] http://www.gnu.org/software/coreutils/manual/html_node/cat-invocation.html#cat-invocation The rest of the *zcat programs out there seem to be just wrapper scripts. The zcat from gzip boils down to 'exec gzip -cd "$@"'. The problem, IMO, is in the xcpio() function of unmkinitramfs. It should use 'gzip -t' instead of 'zcat -t', just as it already uses 'bzip2 -t' and 'lzop -t'. Think that posix zcat does not document a -t option[3] and therefore 'zcat -t' is not a portable way to check file integrity." http://lists.nongnu.org/archive/html/zutils-bug/2018-07/msg00001.html Therefore, reassigning this back to initramfs-tools with the suggestion, that you use gzip -t instead of zcat -t. Regards, Daniel
