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55 lines
2.3 KiB
55 lines
2.3 KiB
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
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From: Colin Watson <cjwatson@ubuntu.com> |
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Date: Fri, 17 Jan 2014 02:28:46 +0000 |
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Subject: [PATCH] Ignore EPERM when modifying kern.geom.debugflags |
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Many tests fail when run as a non-root user on FreeBSD. The failures |
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all amount to an inability to open files using grub_util_fd_open, |
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because we cannot set the kern.geom.debugflags sysctl. This sysctl is |
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indeed important to allow us to do such things as installing GRUB to the |
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MBR, but if we need to do that and can't then we will get an error |
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later. Enforcing it here is unnecessary and prevents otherwise |
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perfectly reasonable operations. |
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--- |
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grub-core/osdep/freebsd/hostdisk.c | 12 ++++++++++-- |
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ChangeLog | 7 +++++++ |
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2 files changed, 17 insertions(+), 2 deletions(-) |
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diff --git a/grub-core/osdep/freebsd/hostdisk.c b/grub-core/osdep/freebsd/hostdisk.c |
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index eb202dcc831..6145d073555 100644 |
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--- a/grub-core/osdep/freebsd/hostdisk.c |
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+++ b/grub-core/osdep/freebsd/hostdisk.c |
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@@ -102,8 +102,16 @@ grub_util_fd_open (const char *os_dev, int flags) |
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if (! (sysctl_oldflags & 0x10) |
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&& sysctlbyname ("kern.geom.debugflags", NULL , 0, &sysctl_flags, sysctl_size)) |
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{ |
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- grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags of sysctl kern.geom.debugflags"); |
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- return GRUB_UTIL_FD_INVALID; |
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+ if (errno == EPERM) |
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+ /* Running as an unprivileged user; don't worry about restoring |
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+ flags, although if we try to write to anything interesting such |
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+ as the MBR then we may fail later. */ |
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+ sysctl_oldflags = 0x10; |
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+ else |
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+ { |
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+ grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags of sysctl kern.geom.debugflags"); |
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+ return GRUB_UTIL_FD_INVALID; |
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+ } |
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} |
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ret = open (os_dev, flags, S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR); |
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diff --git a/ChangeLog b/ChangeLog |
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index 4688ff4e6d3..10abfe28f20 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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+2014-01-19 Colin Watson <cjwatson@ubuntu.com> |
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+ |
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+ * grub-core/osdep/freebsd/hostdisk.c (grub_util_fd_open): Ignore |
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+ EPERM when modifying kern.geom.debugflags. It is only a problem for |
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+ such things as installing GRUB to the MBR, in which case there'll be |
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+ an error later anyway, not for opening files during tests. |
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+ |
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2014-01-18 Andrey Borzenkov <arvidjaar@gmail.com> |
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* grub-core/Makefile.am: Build grub_emu_init.[ch] from MODULE_FILES
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