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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 12:24:23 -0800
commit1dc58ce4a96460a21c6038f9517ce72ae73cfcc3 (patch)
treebd352f37b775d4e6c3c214482da8e8d61d53fc1c /Documentation
parent3d097b15182906eaf121c48697ceda0ab9ddf55e (diff)
downloadlinux-linaro-stable-1dc58ce4a96460a21c6038f9517ce72ae73cfcc3.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 96401631523d..1311a48a7367 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1458,6 +1458,8 @@ 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.