156 Part II . Running the Show This (Web hosting ratings)
156 Part II . Running the Show This chapter focuses on partitions that are used for the Linux file system. To see what partitions are currently set up on your hard disk, use the fdisk command: # /sbin/fdisk l Disk /dev/hda: 40.0 GB, 40020664320 bytes 255 heads, 63 sectors/track, 4825 cylinders Units = cylinders of 16065 * 512 bytes = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104 b Win95 FAT32 /dev/hda2 84 89 48195 83 Linux /dev/hda3 90 522 3478072+ 83 Linux /dev/hda4 523 554 257040 5 Extended /dev/hda5 523 554 257008+ 82 Linux swap This output shows the disk partitioning for a computer capable of running both Linux and Microsoft Windows. You can see that the Linux partition on /dev/hda3 has most of the space available for data. There is a Windows partition (/dev/hda1) and a Linux swap partition (/dev/hda5). There is also a small /boot partition (46MB) on /dev/hda2. In this case, the root partition for Linux has 3.3GB of disk space and resides on /dev/hda3. Next use the mount command (with no options) to see what partitions are actually being used for your Linux system (which available disk partitions are actually mounted and where they are mounted): # mount /dev/hda3 on / type ext3 (rw) /dev/hda2 on /boot type ext3 (rw) /dev/hda1 on /mnt/win type vfat (rw) /dev/proc on /proc type proc (rw) /dev/sys on /sys type sysfs (rw) /dev/devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/shm on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) /dev/hdc on /media/cdrecorder type iso9660 (ro,nosuid,nodev) Although some of the file systems shown as mounted are for special purposes (/sys, /proc, and others), our concern here is with disk partition (/dev/hd*, /dev/sd*, and so on). The mounted Linux partitions in this case are /dev/hda2, which provides space for the /boot directory (contains data for booting Linux), and /dev/hda3, which provides space for the rest of the Linux file system beginning from the root directory (/). This particular system also contains a Windows partition that was mounted in the /mnt/win directory and a CD that was mounted in /media/cdrecorder. (With most GUI interfaces, the CD is typically mounted automatically when you insert it.
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