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-rw-r--r--usr/Kconfig43
1 files changed, 21 insertions, 22 deletions
diff --git a/usr/Kconfig b/usr/Kconfig
index 43a3a0fe8f29..1c3039f28909 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -46,49 +46,48 @@ config INITRAMFS_ROOT_GID
46 If you are not sure, leave it set to "0". 46 If you are not sure, leave it set to "0".
47 47
48config RD_GZIP 48config RD_GZIP
49 bool "Initial ramdisk compressed using gzip" 49 bool "Support initial ramdisks compressed using gzip" if EMBEDDED
50 default y 50 default y
51 depends on BLK_DEV_INITRD=y 51 depends on BLK_DEV_INITRD
52 select DECOMPRESS_GZIP 52 select DECOMPRESS_GZIP
53 help 53 help
54 Support loading of a gzip encoded initial ramdisk or cpio buffer. 54 Support loading of a gzip encoded initial ramdisk or cpio buffer.
55 If unsure, say Y. 55 If unsure, say Y.
56 56
57config RD_BZIP2 57config RD_BZIP2
58 bool "Initial ramdisk compressed using bzip2" 58 bool "Support initial ramdisks compressed using bzip2" if EMBEDDED
59 default n 59 default !EMBEDDED
60 depends on BLK_DEV_INITRD=y 60 depends on BLK_DEV_INITRD
61 select DECOMPRESS_BZIP2 61 select DECOMPRESS_BZIP2
62 help 62 help
63 Support loading of a bzip2 encoded initial ramdisk or cpio buffer 63 Support loading of a bzip2 encoded initial ramdisk or cpio buffer
64 If unsure, say N. 64 If unsure, say N.
65 65
66config RD_LZMA 66config RD_LZMA
67 bool "Initial ramdisk compressed using lzma" 67 bool "Support initial ramdisks compressed using LZMA" if EMBEDDED
68 default n 68 default !EMBEDDED
69 depends on BLK_DEV_INITRD=y 69 depends on BLK_DEV_INITRD
70 select DECOMPRESS_LZMA 70 select DECOMPRESS_LZMA
71 help 71 help
72 Support loading of a lzma encoded initial ramdisk or cpio buffer 72 Support loading of a LZMA encoded initial ramdisk or cpio buffer
73 If unsure, say N. 73 If unsure, say N.
74 74
75choice 75choice
76 prompt "Built-in initramfs compression mode" 76 prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!=""
77 help 77 help
78 This setting is only meaningful if the INITRAMFS_SOURCE is 78 This option decides by which algorithm the builtin initramfs
79 set. It decides by which algorithm the INITRAMFS_SOURCE will 79 will be compressed. Several compression algorithms are
80 be compressed. 80 available, which differ in efficiency, compression and
81 Several compression algorithms are available, which differ 81 decompression speed. Compression speed is only relevant
82 in efficiency, compression and decompression speed. 82 when building a kernel. Decompression speed is relevant at
83 Compression speed is only relevant when building a kernel. 83 each boot.
84 Decompression speed is relevant at each boot. 84
85 85 If you have any problems with bzip2 or LZMA compressed
86 If you have any problems with bzip2 or lzma compressed
87 initramfs, mail me (Alain Knaff) <alain@knaff.lu>. 86 initramfs, mail me (Alain Knaff) <alain@knaff.lu>.
88 87
89 High compression options are mostly useful for users who 88 High compression options are mostly useful for users who are
90 are low on disk space (embedded systems), but for whom ram 89 low on RAM, since it reduces the memory consumption during
91 size matters less. 90 boot.
92 91
93 If in doubt, select 'gzip' 92 If in doubt, select 'gzip'
94 93