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35 lines
1.4 KiB
35 lines
1.4 KiB
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6 years ago
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From 55473e86b6fc1bc15d58810eb73594b1f30568bf Mon Sep 17 00:00:00 2001
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From: Fabian Deutsch <fabiand@fedoraproject.org>
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Date: Thu, 21 May 2015 12:37:38 +0200
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Subject: [PATCH] doc: Add a minimal rd.live.overlay documentation
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Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>
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(cherry picked from commit a1b4efe6a722ac3754d8a48109575d11d5ccf61b)
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---
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dracut.cmdline.7.asc | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc
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index 1e89bd50..c7e3bd40 100644
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--- a/dracut.cmdline.7.asc
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+++ b/dracut.cmdline.7.asc
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@@ -806,6 +806,18 @@ can be found. By default, this is __LiveOS__.
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Copy the complete image to RAM and use this for booting. This is useful
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when the image resides on i.e. a DVD which needs to be ejected later on.
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+**rd.live.overlay=**_<devspec>_:_(<pathspec>|auto)__
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+Allow the usage of a permanent overlay.
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+_<devspec>_ specifies the path to a device with a mountable filesystem.
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+_<pathspec>_ is the path to a file within that filesystem, which shall be used to
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+persist the changes made to the device specified by **root=live:__<url>__** option.
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++
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+[listing]
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+.Example
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+--
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+rd.live.overlay=/dev/sdb1:persistent-overlay.img
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+--
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+
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**rd.live.overlay.thin=**1::
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Enables the usage of thin snapshots instead of classic dm snapshots.
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The advantage of thin snapshots is, that they support discards, and will free
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