3bbe617cee
For the new grub auto-hide feature: https://fedoraproject.org/wiki/Changes/HiddenGrubMenu Grub needs to know if the previous boot succeeded. This is tracked through flags in the grub environment. A selinux autorelabel is special, because it reboots the machine without completing the boot in the normal manner. grub checks the (new) boot_indeterminate grub environment variable to deal with this. This is a variable containing a count of special boots since the last successful normal boot. If this variable is 1 then it also treats the previous boot as successful. The idea is that an autorelabel (or offline updates) increments boot_indeterminate, so normally after a reboot it will be 1 and the grub menu stays hidden. But if we end up in a selinux autorelabel loop for some reason, then it will be bigger then 1 (*) and the grub menu will be shown allowing the user to try and fix things. *) grub itself will also increment it if it is 1 so that even if it gets incremented only once, that still only makes 1 boot count as successful. This commit makes the selinux-autorelabel script call: grub2-editenv - incr boot_indeterminate for proper integration with this new grub feature. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
74 lines
2.4 KiB
Bash
Executable File
74 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Do automatic relabelling
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#
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# . /etc/init.d/functions
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# If the user has this (or similar) UEFI boot order:
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#
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# Windows | grub | Linux
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#
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# And decides to boot into grub/Linux, then the reboot at the end of autorelabel
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# would cause the system to boot into Windows again, if the autorelabel was run.
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#
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# This function restores the UEFI boot order, so the user will boot into the
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# previously set (and expected) partition.
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efi_set_boot_next() {
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# NOTE: The [ -x /usr/sbin/efibootmgr ] test is not sufficent -- it could
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# succeed even on system which is not EFI-enabled...
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if ! efibootmgr > /dev/null 2>&1; then
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return
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fi
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# NOTE: It it possible that some other services might be setting the
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# 'BootNext' item for any reasons, and we shouldn't override it if so.
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if ! efibootmgr | grep --quiet -e 'BootNext'; then
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CURRENT_BOOT="$(efibootmgr | grep -e 'BootCurrent' | sed -re 's/(^.+:[[:space:]]*)([[:xdigit:]]+)/\2/')"
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efibootmgr -n "${CURRENT_BOOT}" > /dev/null 2>&1
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fi
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}
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relabel_selinux() {
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# if /sbin/init is not labeled correctly this process is running in the
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# wrong context, so a reboot will be required after relabel
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AUTORELABEL=
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. /etc/selinux/config
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echo "0" > /sys/fs/selinux/enforce
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[ -x /bin/plymouth ] && plymouth --quit
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if [ "$AUTORELABEL" = "0" ]; then
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echo
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echo $"*** Warning -- SELinux ${SELINUXTYPE} policy relabel is required. "
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echo $"*** /etc/selinux/config indicates you want to manually fix labeling"
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echo $"*** problems. Dropping you to a shell; the system will reboot"
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echo $"*** when you leave the shell."
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sulogin
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else
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echo
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echo $"*** Warning -- SELinux ${SELINUXTYPE} policy relabel is required."
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echo $"*** Relabeling could take a very long time, depending on file"
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echo $"*** system size and speed of hard drives."
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FORCE=`cat /.autorelabel`
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[ -x "/usr/sbin/quotaoff" ] && /usr/sbin/quotaoff -aug
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/sbin/fixfiles $FORCE restore
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fi
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rm -f /.autorelabel
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/usr/lib/dracut/dracut-initramfs-restore
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efi_set_boot_next
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if [ -x /usr/bin/grub2-editenv ]; then
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grub2-editenv - incr boot_indeterminate >/dev/null 2>&1
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fi
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sync
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systemctl --force reboot
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}
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# Check to see if a full relabel is needed
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if [ "$READONLY" != "yes" ]; then
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restorecon $(awk '!/^#/ && $4 !~ /noauto/ && $2 ~ /^\// { print $2 }' /etc/fstab) >/dev/null 2>&1
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relabel_selinux
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fi
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