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earlykdump: generate symlink with stable name to kernel image and iniramfs 

There is currently a problem with earlykdump image building, when a user
is upgrading kernel, dracut will generate new initramfs for the new
kernel, and earlykdump will install currently running version of kernel
into the initramfs, and remain the version based kernel image naming
untouched. But after a reboot the new kernel is running, and it
will try to load the image corresponding to the new kernel version by
file naming.

This patch fixes the problem by creating a symlink with unified stable
naming to the installed kernel image and initramfs, and use the symlink
instand so it will always work despite the kernel version number change.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
This commit is contained in:
Kairui Song 2019-01-10 18:07:41 +08:00
parent 3316c2d735
commit 8a476dabf0
2 changed files with 6 additions and 11 deletions
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4
dracut-early-kdump-module-setup.sh
View File

@ -41,5 +41,9 @@ install() {
prepare_kernel_initrd
inst_binary "$KDUMP_KERNEL"
inst_binary "$KDUMP_INITRD"
ln_r "$KDUMP_KERNEL" "${KDUMP_BOOTDIR}/${KDUMP_IMG}-earlykdump${KDUMP_IMG_EXT}"
ln_r "$KDUMP_INITRD" "${KDUMP_BOOTDIR}/initramfs-earlykdump.img"
chmod -x "${initdir}/$KDUMP_KERNEL"
}

13
dracut-early-kdump.sh
View File

@ -18,17 +18,8 @@ prepare_parameters()
EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")
KDUMP_BOOTDIR=$(check_boot_dir "${KDUMP_BOOTDIR}")
#make early-kdump kernel string
if [ -z "$KDUMP_KERNELVER" ]; then
EARLY_KDUMP_KERNELVER=`uname -r`
else
EARLY_KDUMP_KERNELVER=$KDUMP_KERNELVER
fi
EARLY_KDUMP_KERNEL="${KDUMP_BOOTDIR}/${KDUMP_IMG}-${EARLY_KDUMP_KERNELVER}${KDUMP_IMG_EXT}"
#make early-kdump initrd string
EARLY_KDUMP_INITRD="${KDUMP_BOOTDIR}/initramfs-${EARLY_KDUMP_KERNELVER}kdump.img"
EARLY_KDUMP_KERNEL="${KDUMP_BOOTDIR}/${KDUMP_IMG}-earlykdump${KDUMP_IMG_EXT}"
EARLY_KDUMP_INITRD="${KDUMP_BOOTDIR}/initramfs-earlykdump.img"
}
early_kdump_load()