SIMULATION -
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.
To create a volume group with 8M extends and a logical volume with 50 extends, format it as ext4, and automatically mount it under /mnt/data with a size between 380M and 400M, follow these steps precisely: 1. Use fdisk to create a partition on the desired disk. 2. Use partprobe to let the kernel know about the partition table changes. 3. Initialize the partition with pvcreate. 4. Create a volume group with a physical extent size of 8M using vgcreate. 5. Create a logical volume with 50 extents using lvcreate. 6. Format the logical volume with ext4 using mkfs.ext4. 7. Create the /mnt/data directory using mkdir. 8. Edit /etc/fstab to mount the logical volume automatically by adding '/dev/vg1/lvshare /mnt/data ext4 defaults 0 0'. 9. Use mount -a to mount all filesystems mentioned in /etc/fstab. 10. Verify with df -h or lsblk. The detailed commands are: 1. fdisk 2. partprobe 3. pvcreate /dev/vda6 4. vgcreate -s 8M vg1 /dev/vda6 5. lvcreate -n lvshare -l 50 vg1 6. mkfs.ext4 /dev/vg1/lvshare 7. mkdir -p /mnt/data 8. vim /etc/fstab and add the line '/dev/vg1/lvshare /mnt/data ext4 defaults 0 0' 9. mount -a 10. df -h Ensure the logical volume is sized between 380M and 400M, which 50 extends of 8M each will satisfy (50 * 8M = 400M).
vgcreate -s 8M vg02 /dev/sda3 lvcreate -l 50 -n lv02 mkfs.ext4 /dev/mapper/vg02_lv02 mkdir /mnt/data3 lsblk -pf (UUID=…457f-446bbb805753) echo “UUID=…457f-446bbb805753 /mnt/data3 ext4 defaults 0 0” >> /etc/fstab
Your lvcreate command lacks VG option.
Yep second line should be: lvcreate -l 50 -n lv02 vg02
-- lets say we are going to work on /dev/vda3 , make sure this disk has no mount point,if any than unmount them ex. umount /mnt/data vgcreate -s 8M vg1 /dev/vda3 lvcreate -n lvshare -l 50 vg1 mkfs.ext4 /dev/vg1/lvshare mkdir -p /mnt/data vim /etc/fstab /dev/vg1/lvshare /mnt/data ext4 defaults 0 0 mount -a partprobe df -h
hi just want to ask. what part of the command line addresses this requirement And the size of the floating range should set between 380M and 400M
sudo su lsblk -psf pvcreate /dev/sd[] vgcreate -s 8M vg1 /dev/sd[] lvcreate -l 50 -n lvshare vg1 lsblk -psf mkfs.ext4 /dev/mapper/vg1-lvshare mkdir -p /mnt/data echo '/dev/mapper/vg1-lvshare /mnt/data ext4 defaults 0 0' >> /etc/fstab systemctl daemon-reload mount -a
We need to set partition size between 380M and 400M
50 extends of 8MB each will be close to 400MB.
Which means we do not need to define anything special setting vgcreate to 8M and lvcreate extends to 50 is doing what question asks for.