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authorRobin H. Johnson <robbat2@gentoo.org>2013-12-16 09:31:19 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-09 12:25:12 -0800
commit83ceef0795fb85bb40bb90b300e3ebd8e8628454 (patch)
treefec2d1a2cc63fc1422955f785a04aead5821065c /Documentation
parent7bbc3f71c35fe6204a28ad9e0f2bcdadd88c2377 (diff)
downloadlinux-linaro-stable-83ceef0795fb85bb40bb90b300e3ebd8e8628454.tar.gz
libata: disable a disk via libata.force params
commit b8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865 upstream. A user on StackExchange had a failing SSD that's soldered directly onto the motherboard of his system. The BIOS does not give any option to disable it at all, so he can't just hide it from the OS via the BIOS. The old IDE layer had hdX=noprobe override for situations like this, but that was never ported to the libata layer. This patch implements a disable flag for libata.force. Example use: libata.force=2.0:disable [v2 of the patch, removed the nodisable flag per Tejun Heo] Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> Signed-off-by: Tejun Heo <tj@kernel.org> Link: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk Link: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co Link: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fcbb736d55fe..4f7c57cb6022 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1515,6 +1515,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
* atapi_dmadir: Enable ATAPI DMADIR bridge support
+ * disable: Disable this device.
+
If there are multiple matching configurations changing
the same attribute, the last one is used.