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Another set of BLS fixes
BLS files should only be copied by grub-switch-to-blscfg if BLS isn't set Related: rhbz#1638117 Fix get_entry_number() wrongly dereferencing the tail pointer Resolves: rhbz#1654936 Make grub2-mkconfig to honour GRUB_CMDLINE_LINUX in /etc/default/grub Resolves: rhbz#1637875 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
This commit is contained in:
Javier Martinez Canillas
parent
1f092caba7
commit
4ff5f8dcef
5 changed files with 265 additions and 1 deletions
120
0270-BLS-files-should-only-be-copied-by-grub-switch-to-bl.patch
Normal file
120
0270-BLS-files-should-only-be-copied-by-grub-switch-to-bl.patch
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@ -0,0 +1,120 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Tue, 4 Dec 2018 10:48:45 +0100
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Subject: [PATCH] BLS files should only be copied by grub-switch-to-blscfg if
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BLS isn't set
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Currently the grub-switch-to-blscfg script doesn't update the grub.cfg if
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GRUB_ENABLE_BLSCFG=true is already set in /etc/default/grub. But it still
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copies the BLS files which may overwrite fields modified by the user.
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Related: rhbz#1638117
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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util/grub-switch-to-blscfg.in | 80 +++++++++++++++++++++++--------------------
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1 file changed, 42 insertions(+), 38 deletions(-)
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diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
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index d353370cc51..eeea1307706 100644
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--- a/util/grub-switch-to-blscfg.in
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+++ b/util/grub-switch-to-blscfg.in
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@@ -220,49 +220,51 @@ EOF
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) | cat
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}
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-for kernelver in $(cd /lib/modules/ ; ls -1) "" ; do
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- bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
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- linux="/vmlinuz-${kernelver}"
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- linux_path="/boot${linux}"
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- kernel_dir="/lib/modules/${kernelver}"
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+copy_bls() {
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+ for kernelver in $(cd /lib/modules/ ; ls -1) "" ; do
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+ bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
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+ linux="/vmlinuz-${kernelver}"
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+ linux_path="/boot${linux}"
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+ kernel_dir="/lib/modules/${kernelver}"
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- if [ ! -d "${kernel_dir}" ] ; then
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- continue
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- fi
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- if [ ! -f "${linux_path}" ]; then
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- continue
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- fi
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+ if [ ! -d "${kernel_dir}" ] ; then
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+ continue
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+ fi
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+ if [ ! -f "${linux_path}" ]; then
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+ continue
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+ fi
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- linux_relpath="$("${grub_mkrelpath}" "${linux_path}")"
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- bootprefix="${linux_relpath%%"${linux}"}"
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+ linux_relpath="$("${grub_mkrelpath}" "${linux_path}")"
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+ bootprefix="${linux_relpath%%"${linux}"}"
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- if [ -f "${kernel_dir}/bls.conf" ] ; then
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- cp -af "${kernel_dir}/bls.conf" "${bls_target}"
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- if [ -n "${bootprefix}" ]; then
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- sed -i -e "s,^\(linux[^ \t]*[ \t]\+\).*,\1${bootprefix}${linux},g" "${bls_target}"
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- sed -i -e "/^initrd/ s,\([ \t]\+\)\([^ \t]\+\),\1${bootprefix}\2,g" "${bls_target}"
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- fi
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- else
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- mkbls "${kernelver}" \
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- "$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")" \
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- "${bootprefix}" \
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- >"${bls_target}"
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- fi
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+ if [ -f "${kernel_dir}/bls.conf" ] ; then
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+ cp -af "${kernel_dir}/bls.conf" "${bls_target}"
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+ if [ -n "${bootprefix}" ]; then
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+ sed -i -e "s,^\(linux[^ \t]*[ \t]\+\).*,\1${bootprefix}${linux},g" "${bls_target}"
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+ sed -i -e "/^initrd/ s,\([ \t]\+\)\([^ \t]\+\),\1${bootprefix}\2,g" "${bls_target}"
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+ fi
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+ else
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+ mkbls "${kernelver}" \
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+ "$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")" \
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+ "${bootprefix}" \
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+ >"${bls_target}"
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+ fi
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- if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then
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- bls_debug="$(echo ${bls_target} | sed -e "s/${kernelver}/${kernelver}~debug/")"
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- cp -aT "${bls_target}" "${bls_debug}"
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- title="$(grep '^title[ \t]' "${bls_debug}" | sed -e 's/^title[ \t]*//')"
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- blsid="$(grep '^id[ \t]' "${bls_debug}" | sed -e "s/\.${ARCH}/-debug.${arch}/")"
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- sed -i -e "s/^title.*/title ${title}${GRUB_LINUX_DEBUG_TITLE_POSTFIX}/" "${bls_debug}"
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- sed -i -e "s/^id.*/${blsid}/" "${bls_debug}"
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- sed -i -e "s/^options.*/options \$kernelopts ${GRUB_CMDLINE_LINUX_DEBUG}/" "${bls_debug}"
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- fi
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-done
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+ if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then
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+ bls_debug="$(echo ${bls_target} | sed -e "s/${kernelver}/${kernelver}~debug/")"
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+ cp -aT "${bls_target}" "${bls_debug}"
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+ title="$(grep '^title[ \t]' "${bls_debug}" | sed -e 's/^title[ \t]*//')"
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+ blsid="$(grep '^id[ \t]' "${bls_debug}" | sed -e "s/\.${ARCH}/-debug.${arch}/")"
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+ sed -i -e "s/^title.*/title ${title}${GRUB_LINUX_DEBUG_TITLE_POSTFIX}/" "${bls_debug}"
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+ sed -i -e "s/^id.*/${blsid}/" "${bls_debug}"
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+ sed -i -e "s/^options.*/options \$kernelopts ${GRUB_CMDLINE_LINUX_DEBUG}/" "${bls_debug}"
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+ fi
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+ done
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-if [ -f "/boot/vmlinuz-0-rescue-${MACHINE_ID}" ]; then
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- mkbls "0-rescue-${MACHINE_ID}" "0" "${bootprefix}" >"${blsdir}/${MACHINE_ID}-0-rescue.conf"
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-fi
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+ if [ -f "/boot/vmlinuz-0-rescue-${MACHINE_ID}" ]; then
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+ mkbls "0-rescue-${MACHINE_ID}" "0" "${bootprefix}" >"${blsdir}/${MACHINE_ID}-0-rescue.conf"
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+ fi
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+}
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GENERATE=0
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if grep '^GRUB_ENABLE_BLSCFG=.*' "${etcdefaultgrub}" \
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@@ -283,6 +285,8 @@ elif ! grep -q '^GRUB_ENABLE_BLSCFG=.*' "${etcdefaultgrub}" ; then
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fi
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if [ "${GENERATE}" -eq 1 ] ; then
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+ copy_bls
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+
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if [ $arch = "x86_64" ] && [ ! -d /sys/firmware/efi ]; then
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if ! cp ${prefix}/lib/grub//i386-pc/blscfg.mod ${grubdir}/i386-pc/ ; then
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exit 1
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@ -0,0 +1,34 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Tue, 4 Dec 2018 10:53:49 +0100
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Subject: [PATCH] Fix get_entry_number() wrongly dereferencing the tail pointer
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The get_entry_number_helper() function attempts to lookup a boot entry by
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either title or id matching the value of an environment variable. If they
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are a substring of the variable, the tail pointer is set to the first char
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of the remainder of the string.
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When get_entry_number() calls this function, it checks if this first char
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is a NUL byte, to know if the variable matched correctly. But tail can be
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set to NULL as well to indicate that there isn't a remainder in the string.
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Resolves: rhbz#1654936
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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grub-core/normal/menu.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/grub-core/normal/menu.c b/grub-core/normal/menu.c
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index fc25c702f3c..7e32c498aa8 100644
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--- a/grub-core/normal/menu.c
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+++ b/grub-core/normal/menu.c
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@@ -563,7 +563,7 @@ get_entry_number (grub_menu_t menu, const char *name)
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grub_error_push ();
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entry = get_entry_number_helper(menu, val, &tail);
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- if (*tail != '\0')
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+ if (tail && *tail != '\0')
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entry = -1;
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grub_error_pop ();
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@ -0,0 +1,99 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Mon, 10 Dec 2018 13:11:58 +0100
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Subject: [PATCH] Make grub2-mkconfig to honour GRUB_CMDLINE_LINUX in
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/etc/default/grub
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The kernelopts grub environment variable is set with the GRUB_CMDLINE_LINUX
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value only if wasn't set before. This is because the kernel cmdline params
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of the entries are not in the grub.cfg anymore so grub2-mkconfig shouldn't
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have side effects on neither the entries nor their kernel cmdline params.
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But there's a lot of documentation pointing at modifying GRUB_CMDLINE_LINUX
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to change the kernel cmdline params and users have built a muscle memory on
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it, so the BLS support should be compatible.
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Make the grub2-mkconfig script update the $kernelopts environment variable
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unless the --no-grubenv-update option is used.
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Resolves: rhbz#1637875
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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util/grub-mkconfig.8 | 4 ++++
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util/grub-mkconfig.in | 6 ++++++
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util/grub.d/10_linux.in | 2 +-
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util/grub.d/10_linux_bls.in | 2 +-
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4 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/util/grub-mkconfig.8 b/util/grub-mkconfig.8
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index a2d1f577b9b..434fa4deda4 100644
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--- a/util/grub-mkconfig.8
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+++ b/util/grub-mkconfig.8
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@@ -13,5 +13,9 @@
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\fB--output\fR=\fIFILE\fR
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Write generated output to \fIFILE\fR.
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+.TP
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+\fB--no-grubenv-update\fR
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+Do not update variables in the grubenv file.
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+
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.SH SEE ALSO
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.BR "info grub"
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diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
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index c20171919d9..5e643e16973 100644
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--- a/util/grub-mkconfig.in
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+++ b/util/grub-mkconfig.in
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@@ -50,6 +50,8 @@ grub_get_kernel_settings="${sbindir}/@grub_get_kernel_settings@"
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export TEXTDOMAIN=@PACKAGE@
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export TEXTDOMAINDIR="@localedir@"
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+export GRUB_GRUBENV_UPDATE="yes"
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+
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. "${pkgdatadir}/grub-mkconfig_lib"
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# Usage: usage
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@@ -59,6 +61,7 @@ usage () {
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gettext "Generate a grub config file"; echo
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echo
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print_option_help "-o, --output=$(gettext FILE)" "$(gettext "output generated config to FILE [default=stdout]")"
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+ print_option_help "--no-grubenv-update" "$(gettext "do not update variables in the grubenv file")"
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print_option_help "-h, --help" "$(gettext "print this message and exit")"
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print_option_help "-v, --version" "$(gettext "print the version information and exit")"
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echo
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@@ -94,6 +97,9 @@ do
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--output=*)
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grub_cfg=`echo "$option" | sed 's/--output=//'`
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;;
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+ --no-grubenv-update)
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+ GRUB_GRUBENV_UPDATE="no"
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+ ;;
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-*)
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gettext_printf "Unrecognized option \`%s'\n" "$option" 1>&2
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usage
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diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
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index b54d2774a7d..da2992ac9f1 100644
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--- a/util/grub.d/10_linux.in
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+++ b/util/grub.d/10_linux.in
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@@ -165,7 +165,7 @@ if [ -s \$prefix/grubenv ]; then
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fi
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EOF
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- if ! grub2-editenv - list | grep -q kernelopts; then
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+ if [ "x${GRUB_GRUBENV_UPDATE}" = "xyes" ]; then
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${grub_editenv} - set kernelopts="root=${linux_root_device_thisversion} ro ${args}"
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fi
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diff --git a/util/grub.d/10_linux_bls.in b/util/grub.d/10_linux_bls.in
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index 8cff4c58ab5..175bedd0763 100644
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--- a/util/grub.d/10_linux_bls.in
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+++ b/util/grub.d/10_linux_bls.in
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@@ -225,7 +225,7 @@ linux_entry ()
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populate_header_warn
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populate_menu
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- if ! grub2-editenv - list | grep -q kernelopts; then
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+ if [ "x${GRUB_GRUBENV_UPDATE}" = "xyes" ]; then
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${grub_editenv} - set kernelopts="root=${linux_root_device_thisversion} ro ${args}"
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fi
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@ -267,3 +267,6 @@ Patch0266: 0266-blscfg-expand-grub_users-before-passing-to-grub_norm.patch
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Patch0267: 0267-Make-the-menu-entry-users-option-argument-to-be-opti.patch
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Patch0268: 0268-10_linux_bls-add-missing-menu-entries-options.patch
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Patch0269: 0269-Fix-menu-entry-selection-based-on-title.patch
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Patch0270: 0270-BLS-files-should-only-be-copied-by-grub-switch-to-bl.patch
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Patch0271: 0271-Fix-get_entry_number-wrongly-dereferencing-the-tail-.patch
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Patch0272: 0272-Make-grub2-mkconfig-to-honour-GRUB_CMDLINE_LINUX-in-.patch
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10
grub2.spec
10
grub2.spec
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@ -7,7 +7,7 @@
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Name: grub2
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Epoch: 1
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Version: 2.02
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Release: 64%{?dist}
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Release: 65%{?dist}
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Summary: Bootloader with support for Linux, Multiboot and more
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Group: System Environment/Base
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License: GPLv3+
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@ -492,6 +492,14 @@ fi
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%endif
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%changelog
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* Tue Dec 11 2018 Javier Martinez Canillas <javierm@redhat.com> - 2.02-65
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- BLS files should only be copied by grub-switch-to-blscfg if BLS isn't set
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Related: rhbz#1638117
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- Fix get_entry_number() wrongly dereferencing the tail pointer
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Resolves: rhbz#1654936
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- Make grub2-mkconfig to honour GRUB_CMDLINE_LINUX in /etc/default/grub
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Resolves: rhbz#1637875
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* Fri Nov 30 2018 Javier Martinez Canillas <javierm@redhat.com> - 2.02-64
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- Add comments and revert logic changes in 01_fallback_counting
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- Remove quotes when reading ID value from /etc/os-release
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