1, find the file belong to lucy and copy to a folder,
create the find folder,
mkdir /tmp/findfiles
find the file the owner is lucy, use the parameter -user and -exec
find / -user lucy -exec cp -a {} /tmp/findfiles \;
2, enlarge the lvm, no need to umount,
lvextend -L 190M /dev/mapper/vgsrv-common
then extend the file system,
resize2fs /dev/mapper/vgsrv-common
you can also use the UI to edit the logic volume size,
yum install system-config-lvm system-config-lvm
In the logic volume size, click the ‘edit properties’, and drag the size bar to modify the size.
3, shrink another lvm, needs to umount first.
umount /shrink
needs to check the file system,
e2fsck –f /dev/mapper/vgsrv-shrink
shrink the file system first,
resize2fs /dev/mapper/vgsrv-shrink 200M
shrink the lvm
lvreduce -L 200M /dev/mapper/vgsrv-shrink
mount again,
mount -a
4, make swap partition and make it usable after booting,
create the swap partition and make the label as 0x82
fdisk /dev/sda n to create the partition, size as +512M, t to change the label to 0x82,
Partprobe not working, needs to reboot to make the swap partition be seen by mkswap command, or use the following command to usable,
partx -a /dev/sda
activate swap,
mkswap /dev/sda3
start to use the swap,
swapon /dev/sda3
display the swap partition,
swapon -s
write into the /etc/fstab to make the swap partition bootable.
vim /etc/fstab /dev/sda3 swap swap defaults 0 0
another way to create swap partition is to create file as following,
dd if=/dev/zero of=file bs=1M count=756 #to generate a file size as 756M mkswap file swapon file vim /etc/fstab #modify the fstab file to auto mount /root/file swap swap defaults 0 0
to check the result, using following commands,
cat /proc/swaps free -l swapon -s
swap partition create can refer to this link:
http://computernetworkingnotes.com/file-system-administration/how-to-create-swap-partition.html