Iam new to Linux and want to extend space of disk partition please help.
I am new to Linux and want to extend space of disk partition please help.
I am using redhat 8 at want to increase the space of disk want to increase the /dev/sdb disk size to 10 gb more.please suggest.Its a xfs partition [root@eofficetesting ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 2.7G 0 2.7G 0% /dev tmpfs 2.8G 0 2.8G 0% /dev/shm tmpfs 2.8G 9.2M 2.8G 1% /run tmpfs 2.8G 0 2.8G 0% /sys/fs/cgroup /dev/mapper/rhel-root 14G 4.4G 9.7G 31% / /dev/sdb 10G 104M 9.9G 2% /eOfficetest /dev/sda2 8.0G 301M 7.7G 4% /boot /dev/mapper/rhel-home 8.0G 102M 7.9G 2% /home /dev/mapper/rhel-var 8.0G 351M 7.7G 5% /var /dev/sda1 6.0G 5.8M 6.0G 1% /boot/efi tmpfs 556M 32K 556M 1% /run/user/0 [root@eofficetesting ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 50G 0 disk ├─sda1 8:1 0 6G 0 part /boot/efi ├─sda2 8:2 0 8G 0 part /boot └─sda3 8:3 0 36G 0 part ├─rhel-root 253:0 0 14G 0 lvm / ├─rhel-swap 253:1 0 6G 0 lvm [SWAP] ├─rhel-var 253:2 0 8G 0 lvm /var └─rhel-home 253:3 0 8G 0 lvm /home sdb 8:16 0 20G 0 disk /eOfficetest Fstab details:- /dev/mapper/rhel-root / xfs defaults 0 0 UUID=6ba6977f-8ae9-4885-b811-4cc2f2d3d68f /boot xfs defaults 0 0 UUID=48C5-9144 /boot/efi vfat umask=0077,shortname=winnt 0 2 /dev/mapper/rhel-home /home xfs defaults 0 0 /dev/mapper/rhel-var /var xfs defaults 0 0 /dev/mapper/rhel-swap none swap defaults 0 0 UUID=768fc645-c829-481f-8ecc-bd6b14d37054 /eOfficetest xfs defaults 0 0 |
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I'd guess this is a guest - that is where these sort of queries tend to arise.
If so, add space from the host, then simplest to reboot the guest to get the new size recognised. Then use xfs_growfs to expand the filesystem to use the extra space. |
Its a vm Machine and i Have increased the space from Hyper-v kindly find the fdisk -l output.
[root@eofficetesting ~]# fdisk -l Disk /dev/sdb: 20 GiB, 21474836480 bytes, 41943040 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/sda: 50 GiB, 53687091200 bytes, 104857600 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 58535BBF-EDB4-40FB-81FC-E8B3D89B5D6B Device Start End Sectors Size Type /dev/sda1 2048 12572671 12570624 6G EFI System /dev/sda2 12572672 29349887 16777216 8G Linux filesystem /dev/sda3 29349888 104855551 75505664 36G Linux LVM Disk /dev/mapper/rhel-root: 14 GiB, 15032385536 bytes, 29360128 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/mapper/rhel-swap: 6 GiB, 6442450944 bytes, 12582912 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/mapper/rhel-var: 8 GiB, 8589934592 bytes, 16777216 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/mapper/rhel-home: 8 GiB, 8589934592 bytes, 16777216 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes |
It's been years since I used xfs, but you should be able to do this online - might require sudo.
Code:
xfs_growfs /eOfficetest |
Research the resize2fs command. I've used it before it works fine.
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on xfs ?.
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There's a grow xfs utility, either xfs-grow or grow-xfs, I've never used that. Yeah here it is https://www.man7.org/linux/man-pages..._growfs.8.html. Says the file system needs to be mounted... I'm not sure I like that. |
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