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GRUB4DOS、SYSLINUX及其它启动管理软件讨论专区 » An IMG that neither Grub nor Vfloopy could boot from

Floor1　xiaojun	Posted 2004-01-03 00:00
银牌会员　Posts 499　Credits 2,202
I have an antivirus boot disk here called “Selling Coffee”; it booted with Grub, but I couldn't go on, I could only reboot manually. Its message says—possibly a virus started before it, CMOS was changed, and it says press any key to Power off right away. Under DOS I ran its antivirus program; after the interface came up, I still couldn't continue, but when put on a floppy it works normally; booting with Vfloopy gives an XMS error and hangs hard, so again I have to do it manually. Please take a look, and don't let it fail to upload again~... Why won't it upload again? It says the object doesn't support this property~ dizzy Still won't upload, forget it, forget it, sigh... dizzy

Floor2　aria	Posted 2004-01-03 00:00
高级用户　Posts 243　Credits 924
CMOS was modified... Could there be a restore card?

Floor3　xiaojun	Posted 2004-01-03 00:00
银牌会员　Posts 499　Credits 2,202
No, maybe it detected that it wasn't booted from drive A:, so it assumed that; also under DOS its main program did start, but it wouldn't run the antivirus scan. But from a floppy it works, and its disk doesn't have the common boot files we use.

Floor4　不点	Posted 2004-01-03 00:00
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Antivirus software of this kind generally comes with some copy-protection measures, so if it gets copied somewhere else, it may no longer run normally. In this example, I think it seems like a check on the floppy medium. If it finds that the disk is being read very quickly, it assumes it isn't a floppy, so it refuses normal operation. This is only my guess.