diff options
-rw-r--r-- | usr/Kconfig | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/usr/Kconfig b/usr/Kconfig index a529b4d0530b..588c588791e2 100644 --- a/usr/Kconfig +++ b/usr/Kconfig | |||
@@ -72,23 +72,24 @@ config RD_LZMA | |||
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 | ||
75 | if INITRAMFS_SOURCE!="" | ||
76 | |||
75 | choice | 77 | choice |
76 | prompt "Built-in initramfs compression mode" | 78 | prompt "Built-in initramfs compression mode" |
77 | help | 79 | help |
78 | This setting is only meaningful if the INITRAMFS_SOURCE is | 80 | This option decides by which algorithm the builtin initramfs |
79 | set. It decides by which algorithm the INITRAMFS_SOURCE will | 81 | will be compressed. Several compression algorithms are |
80 | be compressed. | 82 | available, which differ in efficiency, compression and |
81 | Several compression algorithms are available, which differ | 83 | decompression speed. Compression speed is only relevant |
82 | in efficiency, compression and decompression speed. | 84 | when building a kernel. Decompression speed is relevant at |
83 | Compression speed is only relevant when building a kernel. | 85 | each boot. |
84 | Decompression speed is relevant at each boot. | ||
85 | 86 | ||
86 | If you have any problems with bzip2 or LZMA compressed | 87 | If you have any problems with bzip2 or LZMA compressed |
87 | initramfs, mail me (Alain Knaff) <alain@knaff.lu>. | 88 | initramfs, mail me (Alain Knaff) <alain@knaff.lu>. |
88 | 89 | ||
89 | High compression options are mostly useful for users who | 90 | High compression options are mostly useful for users who are |
90 | are low on disk space (embedded systems), but for whom ram | 91 | low on RAM, since it reduces the memory consumption during |
91 | size matters less. | 92 | boot. |
92 | 93 | ||
93 | If in doubt, select 'gzip' | 94 | If in doubt, select 'gzip' |
94 | 95 | ||
@@ -133,3 +134,14 @@ config INITRAMFS_COMPRESSION_LZMA | |||
133 | smaller with LZMA in comparison to gzip. | 134 | smaller with LZMA in comparison to gzip. |
134 | 135 | ||
135 | endchoice | 136 | endchoice |
137 | |||
138 | endif | ||
139 | |||
140 | if INITRAMFS_SOURCE="" | ||
141 | # The builtin initramfs is so small so we don't want to bug the user... | ||
142 | |||
143 | config INITRAMFS_COMPRESSION_NONE | ||
144 | bool | ||
145 | default y | ||
146 | |||
147 | endif | ||