149 lines
4.3 KiB
Diff
149 lines
4.3 KiB
Diff
From 693b7a32833b7c141f03d802f6bc9a767bdb11f8 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Wed, 22 Jul 2015 11:34:08 +0200
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Subject: [PATCH] Cleanup compressor handling
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If no compressor is specified, try to find a suitable one.
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Check if kernel modules can be uncompressed.
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---
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dracut.sh | 78 +++++++++++++++++++++++++++++++++++++++++++++++--------------
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dracut.spec | 7 +++---
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2 files changed, 64 insertions(+), 21 deletions(-)
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diff --git a/dracut.sh b/dracut.sh
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index ee0a039..27be54a 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -751,25 +751,53 @@ if [[ -n "$logfile" ]];then
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fi
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# handle compression options.
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-[[ $compress ]] || compress="gzip"
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+if [[ $_no_compress_l = "cat" ]]; then
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+ compress="cat"
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+fi
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+
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+if ! [[ $compress ]]; then
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+ # check all known compressors, if none specified
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+ for i in pigz gzip lz4 lzop lzma xz lbzip2 bzip2 cat; do
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+ command -v "$i" &>/dev/null || continue
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+ compress="$i"
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+ break
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+ done
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+ if [[ $compress = cat ]]; then
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+ printf "%s\n" "dracut: no compression tool available. Initramfs image is going to be big." >&2
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+ fi
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+fi
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+
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+# choose the right arguments for the compressor
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case $compress in
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- bzip2) compress="bzip2 -9";
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- command -v lbzip2 > /dev/null 2>&1 && compress="lbzip2 -9";;
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- lzma) compress="lzma -9 -T0";;
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- xz) compress="xz --check=crc32 --lzma2=dict=1MiB -T0";;
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- gzip) compress="gzip -n -9";
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- if command -v pigz > /dev/null 2>&1; then
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+ bzip2|lbzip2)
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+ if [[ "$compress" = lbzip2 ]] || command -v lbzip2 &>/dev/null; then
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+ compress="lbzip2 -9"
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+ else
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+ compress="bzip2 -9"
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+ fi
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+ ;;
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+ lzma)
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+ compress="lzma -9 -T0"
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+ ;;
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+ xz)
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+ compress="xz --check=crc32 --lzma2=dict=1MiB -T0"
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+ ;;
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+ gzip|pigz)
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+ if [[ "$compress" = pigz ]] || command -v pigz &>/dev/null; then
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compress="pigz -9 -n -T -R"
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- elif command -v gzip --help 2>&1 | grep -q rsyncable; then
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+ elif command -v gzip &>/dev/null && gzip --help 2>&1 | grep -q rsyncable; then
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compress="gzip -n -9 --rsyncable"
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+ else
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+ compress="gzip -n -9"
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fi
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;;
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- lzo) compress="lzop -9";;
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- lz4) compress="lz4 -l -9";;
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+ lzo|lzop)
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+ compress="lzop -9"
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+ ;;
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+ lz4)
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+ compress="lz4 -l -9"
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+ ;;
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esac
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-if [[ $_no_compress_l = "cat" ]]; then
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- compress="cat"
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-fi
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[[ $hostonly = yes ]] && hostonly="-h"
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[[ $hostonly != "-h" ]] && unset hostonly
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@@ -887,10 +915,26 @@ esac
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abs_outfile=$(readlink -f "$outfile") && outfile="$abs_outfile"
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-if [[ -d $srcmods ]]; then
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- [[ -f $srcmods/modules.dep ]] || {
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- dwarn "$srcmods/modules.dep is missing. Did you run depmod?"
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- }
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+if [[ $no_kernel != yes ]] && [[ -d $srcmods ]]; then
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+ if ! [[ -f $srcmods/modules.dep ]]; then
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+ dwarn "$srcmods/modules.dep is missing. Did you run depmod?"
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+ elif ! ( command -v gzip &>/dev/null && command -v xz &>/dev/null); then
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+ read _mod < $srcmods/modules.dep
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+ _mod=${_mod%%:*}
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+ if [[ -f $srcmods/"$_mod" ]]; then
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+ # Check, if kernel modules are compressed, and if we can uncompress them
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+ case "$_mod" in
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+ *.ko.gz) kcompress=gzip;;
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+ *.ko.xz) kcompress=xz;;
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+ esac
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+ if [[ $kcompress ]]; then
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+ if ! command -v "$kcompress" &>/dev/null; then
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+ dfatal "Kernel modules are compressed with $kcompress, but $kcompress is not available."
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+ exit 1
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+ fi
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+ fi
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+ fi
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+ fi
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fi
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if [[ ! $print_cmdline ]]; then
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diff --git a/dracut.spec b/dracut.spec
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index 08b281d..6ef5de7 100644
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--- a/dracut.spec
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+++ b/dracut.spec
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@@ -60,7 +60,6 @@ BuildRequires: docbook-style-xsl docbook-dtds libxslt
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BuildRequires: asciidoc
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%endif
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-
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%if 0%{?fedora} > 12 || 0%{?rhel}
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# no "provides", because dracut does not offer
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# all functionality of the obsoleted packages
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@@ -94,17 +93,17 @@ Requires: findutils
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Requires: grep
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Requires: kmod
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Requires: sed
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+Requires: xz
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+Requires: gzip
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%if 0%{?fedora} > 22
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Recommends: grubby
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Recommends: hardlink
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-Recommends: gzip
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-Recommends: xz
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+Recommends: pigz
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Recommends: kpartx
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%else
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Requires: hardlink
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Requires: gzip
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-Requires: xz
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Requires: kpartx
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%endif
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