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Commit | Line | Data |
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449b0e07 | 1 | #!/bin/bash |
fb67e4aa HH |
2 | |
3 | set -e | |
449b0e07 | 4 | |
25b987fe HH |
5 | # do some sanity checks first |
6 | [ -e /run/initramfs/bin/sh ] && exit 0 | |
7 | [ -e /run/initramfs/.need_shutdown ] || exit 0 | |
8 | ||
b9ba3c8b RM |
9 | # SIGTERM signal is received upon forced shutdown: ignore the signal |
10 | # We want to remain alive to be able to trap unpacking errors to avoid | |
11 | # switching root to an incompletely unpacked initramfs | |
12 | trap 'echo "Received SIGTERM signal, ignoring!" >&2' TERM | |
13 | ||
449b0e07 HH |
14 | KERNEL_VERSION="$(uname -r)" |
15 | ||
0626cbe9 HH |
16 | [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut |
17 | SKIP="$dracutbasedir/skipcpio" | |
29f33507 | 18 | [[ -x $SKIP ]] || SKIP="cat" |
0626cbe9 | 19 | |
3d8e1ad2 JG |
20 | if [[ -d /efi/Default ]] || [[ -d /boot/Default ]] || [[ -d /boot/efi/Default ]]; then |
21 | MACHINE_ID="Default" | |
22 | elif [[ -f /etc/machine-id ]]; then | |
23 | read -r MACHINE_ID < /etc/machine-id | |
24 | else | |
25 | MACHINE_ID="Default" | |
26 | fi | |
449b0e07 | 27 | |
9a52c3fd | 28 | mount -o ro /boot &> /dev/null || true |
4f0c7fc9 | 29 | |
481b87fa KS |
30 | if [[ -d /efi/loader/entries || -L /efi/loader/entries ]] \ |
31 | && [[ -d /efi/$MACHINE_ID || -L /efi/$MACHINE_ID ]]; then | |
ba2e760b | 32 | IMG="/efi/${MACHINE_ID}/${KERNEL_VERSION}/initrd" |
481b87fa KS |
33 | elif [[ -d /boot/loader/entries || -L /boot/loader/entries ]] \ |
34 | && [[ -d /boot/$MACHINE_ID || -L /boot/$MACHINE_ID ]]; then | |
449b0e07 | 35 | IMG="/boot/${MACHINE_ID}/${KERNEL_VERSION}/initrd" |
481b87fa KS |
36 | elif [[ -d /boot/efi/loader/entries || -L /boot/efi/loader/entries ]] \ |
37 | && [[ -d /boot/efi/$MACHINE_ID || -L /boot/efi/$MACHINE_ID ]]; then | |
3d8e1ad2 | 38 | IMG="/boot/efi/$MACHINE_ID/$KERNEL_VERSION/initrd" |
33e27fab HH |
39 | elif [[ -f /lib/modules/${KERNEL_VERSION}/initrd ]]; then |
40 | IMG="/lib/modules/${KERNEL_VERSION}/initrd" | |
3d8e1ad2 JG |
41 | elif [[ -f /boot/initramfs-${KERNEL_VERSION}.img ]]; then |
42 | IMG="/boot/initramfs-${KERNEL_VERSION}.img" | |
43 | elif mountpoint -q /efi; then | |
44 | IMG="/efi/$MACHINE_ID/$KERNEL_VERSION/initrd" | |
45 | elif mountpoint -q /boot/efi; then | |
46 | IMG="/boot/efi/$MACHINE_ID/$KERNEL_VERSION/initrd" | |
33e27fab HH |
47 | else |
48 | echo "No initramfs image found to restore!" | |
49 | exit 1 | |
449b0e07 | 50 | fi |
449b0e07 | 51 | |
fb67e4aa | 52 | cd /run/initramfs |
449b0e07 | 53 | |
4f20ae26 AAF |
54 | if (command -v zcat > /dev/null && $SKIP "$IMG" 2> /dev/null | zcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ |
55 | || (command -v bzcat > /dev/null && $SKIP "$IMG" 2> /dev/null | bzcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ | |
56 | || (command -v xzcat > /dev/null && $SKIP "$IMG" 2> /dev/null | xzcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ | |
57 | || (command -v lz4 > /dev/null && $SKIP "$IMG" 2> /dev/null | lz4 -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ | |
58 | || (command -v lzop > /dev/null && $SKIP "$IMG" 2> /dev/null | lzop -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ | |
59 | || (command -v zstd > /dev/null && $SKIP "$IMG" 2> /dev/null | zstd -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \ | |
60 | || ($SKIP "$IMG" 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1); then | |
7dbadcc7 | 61 | rm -f -- .need_shutdown |
50bc2253 HH |
62 | else |
63 | # something failed, so we clean up | |
449b0e07 | 64 | echo "Unpacking of $IMG to /run/initramfs failed" >&2 |
32bd2fbb | 65 | rm -f -- /run/initramfs/shutdown |
50bc2253 HH |
66 | exit 1 |
67 | fi | |
68 | ||
a60af534 | 69 | if [[ -d squash ]]; then |
29f33507 | 70 | if ! unsquashfs -no-xattrs -f -d . squash-root.img > /dev/null; then |
8f7c332e | 71 | echo "Squash module is enabled for this initramfs but failed to unpack squash-root.img" >&2 |
a60af534 KS |
72 | rm -f -- /run/initramfs/shutdown |
73 | exit 1 | |
74 | fi | |
75 | fi | |
76 | ||
9a52c3fd | 77 | if [ -e /etc/selinux/config -a -x /usr/sbin/setfiles ]; then |
76522d58 | 78 | . /etc/selinux/config |
24d8f35b | 79 | [ -n "${SELINUXTYPE}" ] && /usr/sbin/setfiles -v -r /run/initramfs /etc/selinux/"${SELINUXTYPE}"/contexts/files/file_contexts /run/initramfs > /dev/null |
76522d58 LN |
80 | fi |
81 | ||
50bc2253 | 82 | exit 0 |