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From c889057e089d69bd187c8ba134c9669247744628 Mon Sep 17 00:00:00 2001
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From: Mike Gilbert <floppym@gentoo.org>
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Date: Sun, 26 Jan 2014 02:56:04 +0100
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Subject: [PATCH 047/143] grub-install: support for partitioned partx
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loop devices.
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* grub-core/osdep/linux/getroot.c (grub_util_part_to_disk): Detect
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/dev/loopX as being the parent of /dev/loopXpY.
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---
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ChangeLog | 7 +++++++
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grub-core/osdep/linux/getroot.c | 13 +++++++++++++
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2 files changed, 20 insertions(+)
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diff --git a/ChangeLog b/ChangeLog
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index 67b4d5c..bbec1e7 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,10 @@
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+2014-01-26 Mike Gilbert <floppym@gentoo.org>
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+
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+ grub-install: support for partitioned partx loop devices.
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+
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+ * grub-core/osdep/linux/getroot.c (grub_util_part_to_disk): Detect
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+ /dev/loopX as being the parent of /dev/loopXpY.
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+
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2014-01-26 Vladimir Serbinenko <phcoder@gmail.com>
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* grub-core/term/serial.c (grub_serial_register): Fix invalid free.
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diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
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index 772de0a..19581d3 100644
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--- a/grub-core/osdep/linux/getroot.c
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+++ b/grub-core/osdep/linux/getroot.c
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@@ -883,6 +883,19 @@ grub_util_part_to_disk (const char *os_dev, struct stat *st,
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*pp = '\0';
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return path;
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}
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+
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+ /* If this is a loop device */
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+ if ((strncmp ("loop", p, 4) == 0) && p[4] >= '0' && p[4] <= '9')
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+ {
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+ char *pp = p + 4;
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+ while (*pp >= '0' && *pp <= '9')
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+ pp++;
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+ if (*pp == 'p')
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+ *is_part = 1;
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+ /* /dev/loop[0-9]+p[0-9]* */
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+ *pp = '\0';
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+ return path;
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+ }
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}
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return path;
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--
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1.9.3
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