summaryrefslogtreecommitdiff
blob: 217421fa5beecdf13374e2aa7f17d7a0d814c09e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-kernel/dracut/dracut-019-r2.ebuild,v 1.1 2012/07/25 17:34:47 aidecoe Exp $

EAPI=4

inherit eutils linux-info

add_req_use_for() {
	local dep="$1"; shift
	local f

	for f in "$@"; do
		REQUIRED_USE+="${f}? ( ${dep} )
"
	done
}

DESCRIPTION="Generic initramfs generation tool"
HOMEPAGE="http://dracut.wiki.kernel.org"
SRC_URI="mirror://kernel/linux/utils/boot/${PN}/${P}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"

REQUIRED_USE="dracut_modules_crypt-gpg? ( dracut_modules_crypt )
	dracut_modules_livenet? ( dracut_modules_dmsquash-live )
	"
COMMON_MODULES="
	dracut_modules_biosdevname
	dracut_modules_bootchart
	dracut_modules_btrfs
	dracut_modules_caps
	dracut_modules_crypt-gpg
	dracut_modules_gensplash
	dracut_modules_mdraid
	dracut_modules_multipath
	dracut_modules_plymouth
	dracut_modules_syslog
	"
DM_MODULES="
	dracut_modules_crypt
	dracut_modules_dmraid
	dracut_modules_dmsquash-live
	dracut_modules_livenet
	dracut_modules_lvm
	"
NETWORK_MODULES="
	dracut_modules_iscsi
	dracut_modules_livenet
	dracut_modules_nbd
	dracut_modules_nfs
	dracut_modules_ssh-client
	"
add_req_use_for device-mapper ${DM_MODULES}
add_req_use_for net ${NETWORK_MODULES}
IUSE_DRACUT_MODULES="${COMMON_MODULES} ${DM_MODULES} ${NETWORK_MODULES}"
IUSE="debug device-mapper net selinux ${IUSE_DRACUT_MODULES}"

RESTRICT="test"

RDEPEND="
	app-arch/cpio
	>=app-shells/bash-4.0
	>=app-shells/dash-0.5.4.11
	>=sys-apps/baselayout-1.12.14-r1
	|| ( >=sys-apps/module-init-tools-3.8 >sys-apps/kmod-5[tools] )
	>=sys-apps/sysvinit-2.87-r3
	>=sys-apps/util-linux-2.20
	>=sys-fs/udev-166

	debug? ( dev-util/strace )
	device-mapper? ( || ( sys-fs/device-mapper >=sys-fs/lvm2-2.02.33 ) )
	net? ( net-misc/curl >=net-misc/dhcp-4.2.1-r1 sys-apps/iproute2 )
	selinux? ( sys-libs/libselinux sys-libs/libsepol )
	dracut_modules_biosdevname? ( sys-apps/biosdevname )
	dracut_modules_bootchart? ( app-benchmarks/bootchart2 )
	dracut_modules_btrfs? ( sys-fs/btrfs-progs )
	dracut_modules_caps? ( sys-libs/libcap )
	dracut_modules_crypt? ( sys-fs/cryptsetup )
	dracut_modules_crypt-gpg? ( app-crypt/gnupg )
	dracut_modules_dmraid? ( sys-fs/dmraid sys-fs/multipath-tools )
	dracut_modules_gensplash? ( media-gfx/splashutils )
	dracut_modules_iscsi? ( >=sys-block/open-iscsi-2.0.871.3 )
	dracut_modules_lvm? ( >=sys-fs/lvm2-2.02.33 )
	dracut_modules_mdraid? ( sys-fs/mdadm )
	dracut_modules_multipath? ( sys-fs/multipath-tools )
	dracut_modules_nbd? ( sys-block/nbd )
	dracut_modules_nfs? ( net-fs/nfs-utils net-nds/rpcbind )
	dracut_modules_plymouth? ( >=sys-boot/plymouth-0.8.3-r1 )
	dracut_modules_ssh-client? ( dev-libs/openssl )
	dracut_modules_syslog? ( || ( app-admin/syslog-ng app-admin/rsyslog ) )
	"
DEPEND=""

#
# Helper functions
#

# Returns true if any of specified modules is enabled by USE flag and false
# otherwise.
# $1 = list of modules (which have corresponding USE flags of the same name)
any_module() {
	local m modules=" $@ "

	for m in ${modules}; do
		! use $m && modules=${modules/ $m / }
	done

	shopt -s extglob
	modules=${modules%%+( )}
	shopt -u extglob

	[[ ${modules} ]]
}

# Removes module from modules.d.
# $1 = module name
# Module name can be specified without number prefix.
rm_module() {
	local force m
	[[ $1 = -f ]] && force=-f

	for m in $@; do
		if [[ $m =~ ^[0-9][0-9][^\ ]*$ ]]; then
			rm ${force} --interactive=never -r "${modules_dir}"/$m
		else
			rm ${force} --interactive=never -r "${modules_dir}"/[0-9][0-9]$m
		fi
	done
}

# Displays Gentoo Base System major release number
base_sys_maj_ver() {
	local line

	read line < /etc/gentoo-release
	line=${line##* }
	echo "${line%%.*}"
}

#
# ebuild functions
#

src_prepare() {
	epatch "${FILESDIR}/${P}-multipath-udev-rules.patch"
	epatch "${FILESDIR}/${P}-no-pkg-config-warnings.patch"
}

src_compile() {
	return
}

src_install() {
	emake prefix=/usr sysconfdir=/etc DESTDIR="${D}" install

	local gen2conf

	dodir /var/lib/dracut/overlay
	dodoc HACKING TODO AUTHORS NEWS README*

	case "$(base_sys_maj_ver)" in
		1) gen2conf=gentoo.conf ;;
		2) gen2conf=gentoo-openrc.conf ;;
		*) die "Expected ver. 1 or 2 of Gentoo Base System (/etc/gentoo-release)."
	esac

	insinto /etc/dracut.conf.d
	newins dracut.conf.d/${gen2conf}.example ${gen2conf}

	insinto /etc/logrotate.d
	newins dracut.logrotate dracut

	dohtml dracut.html

	#
	# Modules
	#
	local module
	modules_dir="${D}/usr/lib/dracut/modules.d"

	# Remove modules not enabled by USE flags
	for module in ${IUSE_DRACUT_MODULES} ; do
		! use ${module} && rm_module -f ${module#dracut_modules_}
	done

	# Those flags are specific, and even are corresponding to modules, they need
	# to be declared as regular USE flags.
	use debug || rm_module 95debug
	use selinux || rm_module 98selinux

	# Following flags define set of helper modules which are base dependencies
	# for others and as so have no practical use, so remove these modules.
	use device-mapper  || rm_module 90dm
	use net || rm_module 40network 45ifcfg 45url-lib

	# Remove S/390 modules which are not tested at all
	rm_module 80cms 95dasd 95dasd_mod 95zfcp 95znet

	# Remove modules which won't work for sure
	rm_module 95fcoe # no tools
	# fips module depends on masked app-crypt/hmaccalc
	rm_module 01fips 02fips-aesni

	# Remove extra modules which go to future dracut-extras
	rm_module 05busybox 97masterkey 98ecryptfs 98integrity 98systemd
}

pkg_postinst() {
	if linux-info_get_any_version && linux_config_src_exists; then
		echo
		ewarn "If the following test report contains a missing kernel"
		ewarn "configuration option, you should reconfigure and rebuild your"
		ewarn "kernel before booting image generated with this Dracut version."
		echo

		local CONFIG_CHECK="~BLK_DEV_INITRD ~DEVTMPFS ~MODULES"

		# Kernel configuration options descriptions:
		local desc_DEVTMPFS="Maintain a devtmpfs filesystem to mount at /dev"
		local desc_BLK_DEV_INITRD="Initial RAM filesystem and RAM disk "\
"(initramfs/initrd) support"
		local desc_MODULES="Enable loadable module support"

		local opt desc

		# Generate ERROR_* variables for check_extra_config.
		for opt in ${CONFIG_CHECK}; do
			opt=${opt#\~}
			desc=desc_${opt}
			eval "local ERROR_${opt}='CONFIG_${opt}: \"${!desc}\"" \
				"is missing and REQUIRED'"
		done

		check_extra_config
		echo
	else
		echo
		ewarn "Your kernel configuration couldn't be checked.  Do you have"
		ewarn "/usr/src/linux/.config file there?  Please check manually if"
		ewarn "following options are enabled:"
		ewarn ""
		ewarn "  CONFIG_BLK_DEV_INITRD"
		ewarn "  CONFIG_DEVTMPFS"
		ewarn "  CONFIG_MODULES"
		echo
	fi

	elog 'To generate the initramfs:'
	elog '    # mount /boot (if necessary)'
	elog '    # dracut "" <kernel-version>'
	elog ''
	elog 'For command line documentation see dracut.kernel(7).'
	elog ''
	elog 'Simple example to select root and resume partition:'
	elog '    root=/dev/sda1 resume=/dev/sda2'
	elog ''
	elog 'To include only dracut modules and kernel drivers for this system,'
	elog 'use the "-H" option.  Some modules need to be explicitly added with'
	elog '"-a" option even if required tools are installed.'
	elog ''
	if ! has_version virtual/pkgconfig; then
		ewarn 'virtual/pkgconfig is not installed, but it is recommended.'
	fi
}