Exam EX200 topic 1 question 49 discussion

In RHEL8 for fstab configuration is not more recommended to use absolute patch to the device like /dev/sda7. The recommendation is to use the UUID identifier instead. To get the swap or any other filesystem's UUID use the command blkid. This will show you all filesystems UUIDs in example: /dev/sda7: UUID="361ed5b5-872a-4e49-ba70-91efb28b2bb4" TYPE="swap" PARTUUID="caa5e8f6-01" Copy the section UUID="361ed5b5-872a-4e49-ba70-91efb28b2bb4" and use it in fstab as follows. UUID="361ed5b5-872a-4e49-ba70-91efb28b2bb4" swap swap defaults 0 0 reboot and verify swap is on free -m

$sudo su #lsblk -psf #fdisk /dev/sd[x] #n #t #82 #mkswap /dev/sd[x] #swapon /dev/sd[x] #echo '/dev/sd[v] swap swap defaults 0 0' >> /etc/fstab #systemctl daemon-reload #mount -a #lsblk -psf

$ fdisk /dev/sda # change the partition type to swap $ partprobe $ echo " /dev/sdb1 swap swap defaults 0 0 " >> /etc/fstab $ mkswap /dev/sdb1 $ swapon -a

parted /dev/sdx mklabel msdos parted /dev/sdx mkpart linux-swap 1MiB 100Mib udevadm settle mkswap /dev/sdx1 (UUID checked) fstab add UUID=XXX swap swap defaults 0 0 systemctl daemon-reload swapon -a swapon --show