grub-mkconfig - generate a GRUB configuration file
- grub-mkconfig -o /boot/grub/grub.cfg
mkinitrd after uprade but before reboot
Skip 1 to 3 below.
mkinitrd after upgrade of kernel (fresh install of slackware64 15.0 and then upgrade packages of kernel results in unbootable system.)
- Important to mkinitrd to build the modules before rebooting. If rebooted without mkinitrd then the system crashes. Boot with usb and run below.
- mkdir /mnt/Slackware
- mount -t ext4 /dev/sda3 /mnt/Slackware
- mount -t proc /proc /mnt/Slackware/proc
- mount --rbind /sys /mnt/Slackware/sys
- mount --rbind /dev /mnt/Slackware/dev
- mount --rbind /run /mnt/Slackware/run
- chroot /mnt/Slackware env -i HOME=/root TERM=$TERM PS1='\u@\h:\w# ' PATH=/usr/bin:/usr/sbin:/bin:/sbin bash --login +h
- mount /dev/sda1 /boot/efi (Incase of EFI boot - Mount the boot partition)
- Check the version of the upgrade kernel and replace in command. /usr/share/mkinitrd/mkinitrd_command_generator.sh -k 3.2.29
- Run the mkinitrd as shown in step 3. eg
- mkinitrd -c -k 3.2.29 -f ext4 -r /dev/sda2 -m usb-storage:pcmcia_core:pcmcia:mmc_core:ssb:modprobe:usbhid:ehci-hcd:ohci-hcd:mbcache:jbd2:ext4 -u -o /boot/initrd.gz
- Run one of below
- a) For lilo check the entry in /etc/lilo.conf and run lilo -v
- b) For EFI Check that /boot/efi partition is mounted and copy /boot/initrd.gz to /boot/efi/EFI/Slackware and run eliloconfig
- c) For grub Check that /boot/efi partition is mounted and copy /boot/initrd.gz to /boot/efi/EFI/Slackware
- Run update-grub or grub-mkconfig -o /boot/grub/grub.cfg
