安装完linux后fdisk-l出现Partition 1 does not end on cylinder boundary
我是用winPE把硬盘格式化之后安装的centos6.3的linux，执行的是最小桌面安装，我root登录后在终端执行fdisk-l之后显示如下：
[root@localhost ~]# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x33ae17ff
Device Boot Start End Blocks Id System
/dev/sda1 * 1 131 1048576 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 131 392 2097152 82 Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/sda3 392 60802 485239808 83 Linux
但是系统可以正常启动和使用，我只是想知道“Partition 1 does not end on cylinder boundary.”是如何引起的，是我的磁盘格式化的系统文件不正确吗？然后我挂载CDROM，执行语句如下，却出现了指定系统文件类型的提示，内容如下：
[root@localhost ~]# cd /mnt
[root@localhost mnt]# ls
[root@localhost mnt]# mkdir cdromtext
[root@localhost mnt]# ls
cdromtext
[root@localhost mnt]# mount /dev/cdrom /mnt/cdromtext
mount: you must specify the filesystem type
[root@localhost mnt]# cd ..
[root@localhost /]# cd /dev
[root@localhost dev]# ls
agpgart loop5 ram4 tty12 tty40 ttyS2
autofs loop6 ram5 tty13 tty41 ttyS3
block loop7 ram6 tty14 tty42 urandom
bsg lp0 ram7 tty15 tty43 usbmon0
bus lp1 ram8 tty16 tty44 usbmon1
cdrom lp2 ram9 tty17 tty45 usbmon2
char lp3 random tty18 tty46 usbmon3
console MAKEDEV raw tty19 tty47 usbmon4
core mapper root tty2 tty48 usbmon5
cpu mcelog rtc tty20 tty49 vcs
cpu_dma_latency mem rtc0 tty21 tty5 vcs1
求好人帮忙解决下，刚接触linux没几天。谢谢
[解决办法]
要指定文件格式iso9660
mount -t iso9660 -o ro /dev/cdrom /mnt/cdromtext
