rpms/kexec-tools
7
0
Fork 0
Code Issues Pull Requests Releases Activity

Write to /var/lib/kdump if $KDUMP_BOOTDIR not writable

Browse Source 
Resolves: bz1965952
Upstream: Fedora
Conflict: None

commit 75bdcb7399
Author: Kelvin Fan <kfan@redhat.com>
Date:   Fri Apr 16 22:31:13 2021 +0000

    Write to `/var/lib/kdump` if $KDUMP_BOOTDIR not writable

    The `/boot` directory on some operating systems might be read-only.
    If we cannot write to `$KDUMP_BOOTDIR` when generating the kdump
    initrd, attempt to place the generated initrd at `/var/lib/kdump`
    instead.

    Signed-off by: Kelvin Fan <kelvinfan001@gmail.com>
    Acked-by: Kairui Song <kasong@redhat.com>

Signed-off-by: Tao Liu <ltao@redhat.com>
This commit is contained in:
Tao Liu 2021-06-23 09:34:40 +08:00
parent 569951017e
commit 5f4c5f9819
4 changed files with 31 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
60-kdump.install
View File

@ -2,17 +2,23 @@
COMMAND="$1" COMMAND="$1"
KERNEL_VERSION="$2" KERNEL_VERSION="$2"
BOOT_DIR_ABS="$3" KDUMP_INITRD_DIR_ABS="$3"
KERNEL_IMAGE="$4" KERNEL_IMAGE="$4"
if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then
exit 0 exit 0
fi fi
if [[ -d "$BOOT_DIR_ABS" ]]; then if [[ -d "$KDUMP_INITRD_DIR_ABS" ]]; then
KDUMP_INITRD="initrdkdump" KDUMP_INITRD="initrdkdump"
else else
BOOT_DIR_ABS="/boot" # If `KDUMP_BOOTDIR` is not writable, then the kdump
# initrd must have been placed at `/var/lib/kdump`
if [[ ! -w "/boot" ]]; then
KDUMP_INITRD_DIR_ABS="/var/lib/kdump"
else
KDUMP_INITRD_DIR_ABS="/boot"
fi
KDUMP_INITRD="initramfs-${KERNEL_VERSION}kdump.img" KDUMP_INITRD="initramfs-${KERNEL_VERSION}kdump.img"
fi fi
@ -23,7 +29,7 @@ case "$COMMAND" in
# and managed by kdump service # and managed by kdump service
;; ;;
remove) remove)
rm -f -- "$BOOT_DIR_ABS/$KDUMP_INITRD" rm -f -- "$KDUMP_INITRD_DIR_ABS/$KDUMP_INITRD"
ret=$? ret=$?
;; ;;
esac esac

24
kdump-lib.sh
View File

@ -776,20 +776,30 @@ prepare_kdump_bootinfo()
boot_initrdlist="initramfs-$KDUMP_KERNELVER.img initrd" boot_initrdlist="initramfs-$KDUMP_KERNELVER.img initrd"
for initrd in $boot_initrdlist; do for initrd in $boot_initrdlist; do
if [ -f "$KDUMP_BOOTDIR/$initrd" ]; then if [ -f "$KDUMP_BOOTDIR/$initrd" ]; then
DEFAULT_INITRD="$KDUMP_BOOTDIR/$initrd" defaut_initrd_base="$initrd"
DEFAULT_INITRD="$KDUMP_BOOTDIR/$defaut_initrd_base"
break break
fi fi
done done
# Get kdump initrd from default initrd filename # Create kdump initrd basename from default initrd basename
# initramfs-5.7.9-200.fc32.x86_64.img => initramfs-5.7.9-200.fc32.x86_64kdump.img # initramfs-5.7.9-200.fc32.x86_64.img => initramfs-5.7.9-200.fc32.x86_64kdump.img
# initrd => initrdkdump # initrd => initrdkdump
if [[ -z "$DEFAULT_INITRD" ]]; then if [[ -z "$defaut_initrd_base" ]]; then
KDUMP_INITRD=${KDUMP_BOOTDIR}/initramfs-${KDUMP_KERNELVER}kdump.img kdump_initrd_base=initramfs-${KDUMP_KERNELVER}kdump.img
elif [[ $(basename $DEFAULT_INITRD) == *.* ]]; then elif [[ $defaut_initrd_base == *.* ]]; then
KDUMP_INITRD=${DEFAULT_INITRD%.*}kdump.${DEFAULT_INITRD##*.} kdump_initrd_base=${defaut_initrd_base%.*}kdump.${DEFAULT_INITRD##*.}
else else
KDUMP_INITRD=${DEFAULT_INITRD}kdump kdump_initrd_base=${defaut_initrd_base}kdump
fi
# Place kdump initrd in `/var/lib/kdump` if `KDUMP_BOOTDIR` not writable
if [[ ! -w "$KDUMP_BOOTDIR" ]];then
var_target_initrd_dir="/var/lib/kdump"
mkdir -p "$var_target_initrd_dir"
KDUMP_INITRD="$var_target_initrd_dir/$kdump_initrd_base"
else
KDUMP_INITRD="$KDUMP_BOOTDIR/$kdump_initrd_base"
fi fi
} }

4
kdumpctl
View File

@ -151,8 +151,8 @@ rebuild_kdump_initrd()
rebuild_initrd() rebuild_initrd()
{ {
if [[ ! -w "$KDUMP_BOOTDIR" ]];then if [[ ! -w $(dirname $TARGET_INITRD) ]];then
derror "$KDUMP_BOOTDIR does not have write permission. Can not rebuild $TARGET_INITRD" derror "$(dirname $TARGET_INITRD) does not have write permission. Cannot rebuild $TARGET_INITRD"
return 1 return 1
fi fi

2
kexec-tools.spec
View File

@ -164,6 +164,7 @@ mkdir -p $RPM_BUILD_ROOT%{_unitdir}
mkdir -p -m755 $RPM_BUILD_ROOT%{_bindir} mkdir -p -m755 $RPM_BUILD_ROOT%{_bindir}
mkdir -p -m755 $RPM_BUILD_ROOT%{_libdir} mkdir -p -m755 $RPM_BUILD_ROOT%{_libdir}
mkdir -p -m755 $RPM_BUILD_ROOT%{_prefix}/lib/kdump mkdir -p -m755 $RPM_BUILD_ROOT%{_prefix}/lib/kdump
mkdir -p -m755 $RPM_BUILD_ROOT%{_sharedstatedir}/kdump
install -m 755 %{SOURCE1} $RPM_BUILD_ROOT%{_bindir}/kdumpctl install -m 755 %{SOURCE1} $RPM_BUILD_ROOT%{_bindir}/kdumpctl
install -m 755 build/sbin/kexec $RPM_BUILD_ROOT/usr/sbin/kexec install -m 755 build/sbin/kexec $RPM_BUILD_ROOT/usr/sbin/kexec
@ -328,6 +329,7 @@ done
%dir %{_sysconfdir}/kdump %dir %{_sysconfdir}/kdump
%dir %{_sysconfdir}/kdump/pre.d %dir %{_sysconfdir}/kdump/pre.d
%dir %{_sysconfdir}/kdump/post.d %dir %{_sysconfdir}/kdump/post.d
%dir %{_sharedstatedir}/kdump
%{_mandir}/man8/kdumpctl.8.gz %{_mandir}/man8/kdumpctl.8.gz
%{_mandir}/man8/kexec.8.gz %{_mandir}/man8/kexec.8.gz
%ifarch %{ix86} x86_64 ppc64 s390x ppc64le aarch64 %ifarch %{ix86} x86_64 ppc64 s390x ppc64le aarch64