Add new hard disk devices and hard disk partitions in linux to format and mount disk quotas

Add new hard disk devices and hard disk partitions in linux format mounting use disk quota limit disk management 1. View hard disk device information fdisk-l 2. Use www.2cto.com 1 for disk partitioning, formatting, and mounting) view hard disk information: fdisk-l [root @ localhost ~] # Fdisk-l Disk/dev/sda: 21.4 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sda1 * 1 6 48163 + 83 Linux/dev/sda2 7 515 4088542 + 83 Linux/ dev/sda3 516 2480 15783862 + 83 Linux/dev/sda4 2481 2610 1044225 5 Extended/dev/sda5 2481 2610 1044193 + 82 Linux swap/Solaris www.2cto.com Disk/dev/sdb: 21.4 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sdb1 1 1 2610 20964793 + 5 Extended/dev/sdb5 1 2610 20964762 83 LinuxWarning: invalid flag 0x0000 of partition table 5 will be corrected by w (rite) Disk/dev/sdc: 42.9 GB, 42949672960 bytes255 heads, 63 sectors/track, 5221 cylindersUnits = c Ylinders of 16065*512 = 8225280 bytes www.2cto.com Device Boot Start End Blocks Id System/dev/sdc1 11 5221 41857357 + 5 Extended/dev/sdc4 1 10 80293 + 83 Linux 2), to the hard disk partition fdisk/dev/sdb E. g.: fdisk/dev/hda (for the first IDE disk) or: fdisk/dev/sdc (for the third SCSI disk) or: fdisk/dev/eda (for the first PS/2 ESDI drive) Command action l list known partition types n add a new partition www.2cto. co M p print the partition tableq quit without saving changes t change a partition's system idu change display/entry units w write table to disk and exit www.2cto.com 3), n create a new partition [d is to delete a partition] 4), e --- create an extended partition ---> l create a logical partition p --- create a primary partition and fill in the start and end columns 5), t set file system number 83 ---> linux 6), w write partition information to the partition table [or q exit, do not write] 7), format as ext3 -----> mkfs. ext3/dev/sdb58), partprobe/dev/sdb notify all software with this hard disk device 9), set automatic mounting vi/etc/fstab/dev/sdb5/ Mnt ext3 defaults 0 010), mount the device that is not mounted to the fstab file (mount-a 11), df-h to view the disk quota of all mounted devices: 1. Add a new disk, partition, format, (mkfs. etx3/dev/sdc5/) 2. Set automatic mounting upon startup (vi/etc/fstab) to add Disk Quota support (User quota usrquota and group quota kgquota) /dev/sdc5/mnt ext3 defaults, usrquota, create a quota database named quotacheck-cumg/mnt www.2cto.com [root @ localhost mnt] # lltotal 16-rw ------- 1 root 6144 Jun 16 05:21 aquota. group- Rw ------- 1 root 6144 Jun 16 05:21 aquota. user 5. Edit the user quota and group quota edquota-u user1 or edquota-g web. Here, the entire group can only be used within the quota or can everyone in the group use that much? 6. Enable disk quota limit quotaon-aug 7. Test dd if =/dev/zero of1_test.txt bs = 10 M count = 2 author zdrjlamp