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Category: RedHat EX200

Exam RedHat EX200: Red Hat Certified System Administrator –RHCSA

Copy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any per

Copy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any permission. # cp /etc/fstab /var/tmp/ # chgrp admin /var/tmp/fstab # setfacl -m u:user1:rwx /var/tmp/fstab # setfacl -m u:user2:— /var/tmp/fstab # ls -l -rw-rw-r–+ 1 root admin 685 Nov 10 15:29 /var/tmp/fstab

Download ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which tak

Download ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which take effect automatically at boot-start. # cd /root; wget ftp://192.168.0.254/pub/boot.iso # mkdir -p /media/cdrom # vim /etc/fstab /root/boot.iso /media/cdrom iso9660 defaults,loop 0 0 # mount -a mount [-t vfstype] [-o options] device dir

Create a volume group,and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv

Create a volume group,and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M. # fdisk # partprobe # pvcreate /dev/vda6 # vgcreate -s […]

Create a volume group, and set 16M as a extends. And divided a volume group containing 50 extends on volume gr

Create a volume group, and set 16M as a extends. And divided a volume group containing 50 extends on volume group lv, make it as ext4 file system, and mounted automatically under /mnt/data. # pvcreate /dev/sda7 /dev/sda8 # vgcreate -s 16M vg1 /dev/sda7 /dev/sda8 # lvcreate -l 50 -n lvm02 # mkfs.ext4 /dev/vg1/lvm02 # blkid […]

Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set b

Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.) vgdisplay (Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend) # lvdisplay (Check […]


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