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i have linux 9.0 and winXP on my pc.
for some days i do not use linux, and one day when i select to boot to linux, the GRUB becomes a black-white charactor interface. when i use the command: &root(hd0, &, and press key [tab] to show the useable partiton, it show me that most partition is &file system type unknow&, except a fat32 and swap partiton. i have several NTFS partitions and a fat32 partition and ext3 partition and the swap partition.
but when i turn to windows, the ntfs partition is correct. in partition magic 8.0, i can see ext3 partition, everything seems to be right.
it is a strange problem. Maybe it is because that i have use partition magic's exe file TEDIT32.EXE to show something, such as the epbr. but i DO NOT change a datium.
what is the wrong with my computer?
i use nt loader to boot linux. that is copy the first sector of the boot partiton(dev/hda9) to a file(bootsect), and add a line as &linux=bootsect& in the file boot.ini.
the grub confige file should be unchanged since i do not use linux for a time.
i think the problem lie in the partiton table, but windows is boot right. this is what puzzle me.
还有一个相关问题:有时候安装linux时, 硬盘里的空间已经分配完毕. 这时往往用PQ magic把一个或几个较大的分区分出几个小分区来腾空间. 比如把hda9分成两个分区.如果hda9后面还有几个分区,例如还有hda10和hda11, 那么多分出来的是hda12. 这样从hda9开始的分区情况是: hda9, hda12, hda10, hda11.这样的分配设置存在于哪呢?&&我的机器可能后来变成顺序存放了, 即: hda9, hda10, hda11, hda12.&&不过这样的话, 通过修改启动分区应该可以的. 问题是为什么除了fat32和swap分区别的分区都不认识了, 而在windows中却可以识别.
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filesystem type unknown
这个帖子是在linux中输入的
过程挺复杂的, 用安装盘重新安装, 但在拷贝文件时强行复位.
好像是这么一回事: 分区的顺序发生了变化. grub的配置文件没有及时跟进(与时俱进是多么的重要!), 所以它自己摸不着头脑了, 不知道去哪里找启动文件.
我的硬盘分区原来为: hda1(c), hda5(d), hda6(e), hda7(f), hda8(g), hda11(ext3), hda12(swap), hda9(h), hda10(i). 不知道什么原因(谁能告诉我?), 后来变成了: hda1(c), hda5(d), hda6(e), hda7(f), hda8(g), hda9(ext3), hda10(swap), hda11(h), hda12(i). 所以不能引导了.
解决此问题的最好办法, 是在windows下利用第三方软件修改ext3中的grub.conf文件, 比如用ext2fs.
期间还发生别的问题, 鼠标的配置变了, 有滚轮却不能用.
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本篇文章主要介绍了"制作SWAP的方法"，主要涉及到制作SWAP的方法方面的内容，对于制作SWAP的方法感兴趣的同学可以参考一下。
制作SWAP有两种方法：1.使用分区做为SWAP2.使用文件做为SWAP使用分区做为SWAP比较好，速度比文件的快，也不容易产生磁盘碎片所有应该尽量使用分区作为SWAP. 先说说使用文件做为SWAP吧：因为做为SWAP的文件，必须是连续的，所以需要使用dd命令创建它：[root@NEWLFS ~]#dd if=/dev/zero of=swapfile bs=1024 count=6553665536+0 records in65536+0 records out[root@NEWLFS ~]#这样就制作了一个64M的swapfile (文件名自定)如果想制作128M的SWAP,count值：128*制作128M的SWAP 命令就变成了：dd if=/dev/zero of=swapfile bs=1024 count=131072会计算了吧 ^_^ 使用mkswap命令制作swap: [root@NEWLFS ~]#mkswap swapfile Setting up swapspace version 1, size = 67104 kB[root@NEWLFS ~]#最后加在/etc/fstab,每次开机都会自动启用SWAP:编辑fstab,在最后加入一行，格式如下： /root/swapfile swap swap defaults 0 0OK，启用它：[root@NEWLFS ~]#swapon -a使用swapon -s 查看是否成功启用了：[root@NEWLFS ~]#swapon -sFilename& && & Type& &&&Size& &&&Used& &&&Priority/root/swapfile file& &&&65528& &&&0& && && &-1OK，swapfile已经投入使用啦&&^_^ 再来看看使用分区作为swap : 注意：对分区不熟悉，不要轻易操作，重要数据要备份，硬盘有价，数据无价。首先用分区工具分出一个分区作为SWAP,分区类型标识为82(Linux swap)这里我使用/sbin/cfdisk比fdisk简单用一些 [root@NEWLFS ~]#cfdisk .........略& & Name& && &&&Flags& && &Part Type&&FS Type& && && &&&[Label]& && &&&Size (MB)--------------------------------------------------------------------------------& & hda1& && &&&Boot& && &&&Primary& &W95 FAT32& && && && && && && && &&&6859.89& & hda5& && && && && && &&&Logical& &Linux ReiserFS& && && && && && &&&22413.89& & hda6& && && && && && &&&Logical& &NTFS& && && && &&&[^C]& && && && &26386.70& & hda7& && && && && && &&&Logical& &Linux ext3& && && && && && && && &10734.00& & hda8& && && && && && &&&Logical& &Linux ext3& && && && && && && && &&&106.93& & hda9& && && && && && &&&Logical& &Linux raid autodetect& && && && &&&3619.13& & hda10& && && && && && & Logical& &Linux ext3& && && && && && && && & 7221.80& & hda11& && && && && && & Logical& &Linux swap / Solaris& && && && && & 534.65& & hda12& && && && && && & Logical& &Linux raid autodetect& && && && &&&2146.80[Bootable]&&[ Delete ]&&[&&Help&&]&&[Maximize]&&[ Print&&]&&[&&Quit&&]& &&&[&&Type&&]&&[ Units&&]&&[ Write&&]我没有空闲分区了 &&假设我已经将hda11删除掉，现在hda11是空闲空间。 选择 [Type] :...........略16 Hidden FAT16& && && & 82 Linux swap / Solaris&&E4 SpeedStor17 Hidden HPFS/NTFS& && &83 Linux& && && && && &&&EB BeOS fs18 AST SmartSleep& && &&&84 OS/2 hidden C: drive&&EE EFI GPTEnter filesystem type: 82&&-----&;输入82 返回主菜单，hda11空间空间就应该变成了上面所示的那样。确定无误，选择 [ Write&&] 写入分区表就OK了。使用mkswap命令制作swap: [root@NEWLFS ~]#mkswap /dev/hda11 Setting up swapspace version 1, size = 67104 kB[root@NEWLFS ~]#最后加在/etc/fstab,每次开机都会自动启用SWAP:编辑fstab,在最后加入一行，格式类似如下： &&/dev/hda11&&swap swap defaults 0 0OK，启用它：[root@NEWLFS ~]#swapon -a使用swapon -s 查看是否成功启用了：[root@NEWLFS ~]#swapon -sFilename& && & Type& &&&Size& &&&Used& &&&Priority/dev/hda11& &partition&&522072& &&&0& && && &-1OK,/dev/hda11也投入使用喽 &&
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