Re: After all documentation about grub, yes I need help with multiboot with grub
Web Clark (RR) wrote: To zero the MBR S/N, boot your favorite linux CD and run the following command: dd if=/dev/zero of=/dev/hda bs=1 count=4 seek=440 This of course zeros /dev/hda. For another disk, put /dev/hdb, etc. That's interesting Web Clark (RR). I've recently added the dd command to my super grub disk. So if you could teach me more trick about dding the MBR and installing more than one windows xp on a pc... I could add nice features based on dd to the super grub disk. adrian15 ___ Bug-grub mailing list Bug-grub@gnu.org http://lists.gnu.org/mailman/listinfo/bug-grub
Re: After all documentation about grub, yes I need help with multiboot with grub
adrian15 wrote: Tomislav Vucic wrote: Hello, I found GRUB very helpfull, but I need to do one more thing, but how??? first of all I have 3 OS-s (2 of them are win xp, plz don't ask why, and third is Ubuntu 6.06 as default for booting) Questions: *How to hide one xp partition from another with grub? **Is it possible to do so if I have only one hard disk? Or is it somehow connected with it? Yes. Check the hide and unhide commands. It would be something as this: title Boot 1 unhide (hd0,0) hide (hd0,1) rootnoverify (hd0,0) chainloader +1 boot title Boot 2 unhide (hd0,1) hide (hd0,0) rootnoverify (hd0,1) chainloader +1 boot The problem with some xps is that even if you do this trick they remember the partitions that were before the hiding. I think there's a solution about editing I don't know what about the registry. Or... if you do not mind working... you hide the 2nd windows. You install the 1st windows. You hide the 1st windows. And then you install the 2nd windows. Then... you use these commands from grub console and you're done. If you do not mind reinstall Windows you can recover your grub with my Super Grub Disk (http://adrian15.raulete.net/grub/) You can also use Super Grub Disk to hide and unhide partitions and boot whatever you want to (in theory, I haven't tried it myself in a real system). The option is found inside the Special Boot menu. Hide and Unhide and... boot option I think it is called. adrian15 ___ Bug-grub mailing list Bug-grub@gnu.org http://lists.gnu.org/mailman/listinfo/bug-grub I did alot of work along these lines... I got it all figured out, but have not actually done a clean sweep to get my own system up. Eventually I hoped to write it up and get it to the list, but my notes are poor and I don't remember everything. I had 10 Win2K systems on one PC, including out of logical partitions, on both hda and hdb. (10 is a limit of NTLDR, else you could have alot! Perhaps you could have another grub entry that chainloads a hacked pbr that load a second NTLDR (NTDLR2) which is in turn hacked to load boot2.ini instead of boot.ini with 10 more?). Anyway, the trick is that they have to be completely hidden from each other, and Win2K is very good and cleaver at figuring things out and remembering. Sometimes I had systems that APPEARED to be running indpendently, but in reality were accessing files from another Windows partition! Don't be fooled - it is easy. Once you think it is working, try trashing the other windows installation and see if the one you think you are running still runs. (You cat dd if=/dev/hdX | gzip -c /nfsmount/save.tgz pretty fast on a 100MBit net to save a partition, then restore it later with the inverse). I had grub fiddle the hiding, then start the NT loader, which gave me a choice of partitions to boot Win2K from. NTLDR was in its own fat32 partition. grub was chainloading a file with the NT boot sector (pbr) from that partition. All my Win2K installations were to FAT32, not NTFS. You would have to study the Starman stuff to see about the length of the NTFS PBR. I am quite sure that everything I learned applies to XP also, although I have to stop short because I don't have XP. I learned much from the Starman's pages about MBRs. With regards to your question, the problem, as Adrian indicated, is that Windows remembers everything it has ever seen, even if it is now hidden. I have even wiped out the PBR (which has critical information about the file system) and had Windows 2K still happily and successfully use the partition. What you need to do is to get Windows 2K to believe that everything it knows about a disk may be invalid. To do this you need to hide all of the partitions except for the one you want to be visible to the copy of XP you are about to boot, then zero the serial number in the MBR of every disk that you want Windows to re-ennumerate. When you boot Win2K it will invalidate everything it knew about the disks with the zeroed SN and reenumerate the partitions. Hidden ones will not be noticed. You will have to go through this for each XP system. Note that you CAN use the storage management stuff under XP to assign a drive letter to a hidden parition - then you have let the cat out of the bag, and you will have to hide it and clear the disk SN again to get XP to forget about it. To zero the MBR S/N, boot your favorite linux CD and run the following command: dd if=/dev/zero of=/dev/hda bs=1 count=4 seek=440 This of course zeros /dev/hda. For another disk, put /dev/hdb, etc. Hope this helps. Sorry I can't give you a complete dump at this time. I wish I had written it up when it was fresh in my mind. --Ray ___ Bug-grub mailing list Bug-grub@gnu.org http://lists.gnu.org/mailman/listinfo/bug-grub
After all documentation about grub, yes I need help with multiboot with grub
Hello, I found GRUB very helpfull, but I need to do one more thing, but how??? first of all I have 3 OS-s (2 of them are win xp, plz don't ask why, and third is Ubuntu 6.06 as default for booting) Questions: *How to hide one xp partition from another with grub? **Is it possible to do so if I have only one hard disk? Or is it somehow connected with it?Thanks in advance..New Linux User ___ Bug-grub mailing list Bug-grub@gnu.org http://lists.gnu.org/mailman/listinfo/bug-grub
Re: After all documentation about grub, yes I need help with multiboot with grub
Tomislav Vucic wrote: Hello, I found GRUB very helpfull, but I need to do one more thing, but how??? first of all I have 3 OS-s (2 of them are win xp, plz don't ask why, and third is Ubuntu 6.06 as default for booting) Questions: *How to hide one xp partition from another with grub? **Is it possible to do so if I have only one hard disk? Or is it somehow connected with it? Yes. Check the hide and unhide commands. It would be something as this: title Boot 1 unhide (hd0,0) hide (hd0,1) rootnoverify (hd0,0) chainloader +1 boot title Boot 2 unhide (hd0,1) hide (hd0,0) rootnoverify (hd0,1) chainloader +1 boot The problem with some xps is that even if you do this trick they remember the partitions that were before the hiding. I think there's a solution about editing I don't know what about the registry. Or... if you do not mind working... you hide the 2nd windows. You install the 1st windows. You hide the 1st windows. And then you install the 2nd windows. Then... you use these commands from grub console and you're done. If you do not mind reinstall Windows you can recover your grub with my Super Grub Disk (http://adrian15.raulete.net/grub/) You can also use Super Grub Disk to hide and unhide partitions and boot whatever you want to (in theory, I haven't tried it myself in a real system). The option is found inside the Special Boot menu. Hide and Unhide and... boot option I think it is called. adrian15 ___ Bug-grub mailing list Bug-grub@gnu.org http://lists.gnu.org/mailman/listinfo/bug-grub
Urgerntly need help on GRUB problem.
Hi, Ihave a system (with single hard disk) installed with RedHat 9.0 and WindowsXP professional. I was using GRUB as my bootloader. It was working fine but all of a sudden, I am seeinga strange problem. The GRUB screen does not wait for my input to choose the OS to boot. It just vanishes and boots the default OS. I have set enough delay in the grub.conf file (500 seconds). Also, I have marked that if I go to the BIOS setup and comeback without doing any change ofcourse, the grub screen appears allowing me to choose the OS from the menu. I have no idea what might have caused it but I do remember that a system hang had occured and I have to hard boot my system. Please let me know what do I do to solve this problem and what might have caused it. Thanking you in advance. With warm regards Sunil Do you Yahoo!?Friends. Fun. Try the all-new Yahoo! Messenger___ Bug-grub mailing list [EMAIL PROTECTED] http://lists.gnu.org/mailman/listinfo/bug-grub
Need help!
Hi, I know it might not be a bug in GRUB itself but I need guidance. I have a dual boot-loader with Windows XP and Linux on my PC. When I turn it on, it comes up with GRUB hard disk error. Anybody can guide me to how to fix this error. Thanks. Andy __ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
need help for modifying GRUB
Hi! I'm new in this Mailing List and I need your help! In my University We're developing a mobile terminal but, for some hardware problems, we need to modify the date to avalid one: because The machine put 00/00/ in the Date field of the BIOS and the OS hangs (Windows, unfortunately). Unfortunately, this problem is not in my skills, so i'm in trouble!!! Some people told me that modifying GRUB sources, i should be able to change the date before the OS starts, putting the right instructions at the beginning of GRUB code... I've already dowloaded GRUB sources files but, sincerly, I think that without any help, I won't solve this problem... Could anyone give me any helps, hints, links, ? Thanks in advance Giuseppe ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
i need help
i have a TOSHIBA laptop (satelite) i installed your boot loader at the same time as my linux distrib(RH9). i needed to reinstall windows so i used the emergency backup that toshiba provided me with. now when i try to boot nothing happens: my screen is all black and it says: GRUB What should i do? _ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Need help booting 3 OS
Gud day, I have two hard drives. 1st drive has only 1 partition w/c is an ntfs with windows xp. I, then add a 2nd drive with 4 partitions: fat32, fat32, fat32, linux. What I did was first disabled (from bios) the 1st drive then booted from CD and installed Windows 98 on drive E:\, w/c is the 3rd partition of the 2nd drive. Rebooted and win98 works fine with windows directory on drive e:\ and io.sys (file) on drive c:\. Rebooted again and disabled all drives (hdd) and booted from Mandrake v9.0 installation CD and installed it on the 4th partition of the second drive. Installation complete! Reboot... enabled all drives... and now, by default, Mandrake uses LILO... booted Mandrake and changed LILO to GRUB coz LILO won't boot win98 but booted winxp. After changing LILO to GRUB and edited menu.lst still can't boot win98. I tried map hd0 to hd1 and vice-versa, even hiding hd0,0... what happens is that it'll boot on the second drive but cannot load win98 coz drive E:\ does not exist. Although it's there! Tried working around some editing on menu.lst but still can't boot win98 on the second drive. I even come up with a drive C and D with the same content, drive E and H with the same content drive F and I also with the same contents. Funny... my wind98 directory is now at drive F where it should be on drive E. hahaha Will you please help me? Winxp on the 1st drive booted well and also Linux. But how can I boot win98 on the 2nd drive with 4 partitions and my win98 directory is at the 3rd partition of the second drive? We all know that if I disable the first drive, GRUB is non existing and it'll boot win98. hahaha. Will you plz help me? tnx ** Get your free E-Mail account at WWW.DIGITELONE.COM ** ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Need help with GRUB
Hi, Someone installed RedHat on my hard drive and GRUB ver. 0.5.95 as multibooter over my existing Win2000 O/S. I was able to remove the Redhat OS, but GRUB comes up during boot-up and defaults to Redhat boot up, since it is the first item on the menu. How can I remove GRUB and have Windows 2000 as my default Boot up OS? I looked at the answer on your web site in the FAQ, but FDISK.exe is not even available in Win2000. If not possible to use win2k as default boot up, as a last resort can you tell me how to change the default boot in GRUB from Linux to Win2K? Please send your response to this e-mail and [EMAIL PROTECTED] Thanks ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Need Help on Removing Grub (Again)
I apologize in advance if this topic has been beaten to death. I've reviewed at least 100+ articles on usenet and haven't found a satisfactory answer for a recurring problem. Under the heading How to Uninstall GRUB from my hard disk drive?, the FAQ states that there is no concept uninstall in boot loaders, because if you uninstall a boot loader, an unbootable machine would simply remain. This isn't always true. Imagine a working system with three drives: hd0, hd1, and hd2 with grub and linux installed on (hd1,1). For various reasons, the user does *not* want to install grub in the mbr of hd0. The user adds a fourth drive to the system (hd3) and wants to use it to install a linux system that will ultimately replace the linux install on hd1. However, he wants to retain the redundant linux partition on hd1 for reasons of safety. He can install grub on the new disk (hd3) but this won't have much impact since hd1 will be first in line at boot time. Perhaps I'm mistaken but it seems to me that the ideal solution would be to install a boot loader on hd3 after *REMOVING* the boot loader from hd1. Removing the old grub bootloader DOES NOT result in an unbootable system. Rather, it allows the user to boot the system that he prefers. In briefly reviewing previous discussions on this list and on usenet, I've come across the suggestion to use DOS fdisk /mbr. I'm not sure that this would work in the aforementioned scenario, and in any case, it seems a bit lame to fall back on DOS in order to remedy a flaw in linux software. Do a search through the usenet archives on google and you'll turn up a gezillion posts asking how to remove grub. The standard replies are: Why would you want to? and Use DOS fdisk /mbr. Neither of these replies will adequately resolve the problem outlined above. Could someone suggest another solution??? It seems to me that it would be easy enough for someone familiar with disk geometry (not me :-)) to add an argument to grub (--erase) permitting grub to be cleanly removed from an MBR and a partition boot record. Alternatively, 'dd' could probably do the trick. Could some kind soul recommend the proper lengths and offsets? Comments? Suggestions? -- RD Lawrence 504-443-5000 ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Boot from a dos floppy and: fdisk /mbr [EMAIL PROTECTED] (RD Lawrence) writes: I apologize in advance if this topic has been beaten to death. I've reviewed at least 100+ articles on usenet and haven't found a satisfactory answer for a recurring problem. Under the heading How to Uninstall GRUB from my hard disk drive?, the FAQ states that there is no concept uninstall in boot loaders, because if you uninstall a boot loader, an unbootable machine would simply remain. This isn't always true. Imagine a working system with three drives: hd0, hd1, and hd2 with grub and linux installed on (hd1,1). For various reasons, the user does *not* want to install grub in the mbr of hd0. The user adds a fourth drive to the system (hd3) and wants to use it to install a linux system that will ultimately replace the linux install on hd1. However, he wants to retain the redundant linux partition on hd1 for reasons of safety. He can install grub on the new disk (hd3) but this won't have much impact since hd1 will be first in line at boot time. Perhaps I'm mistaken but it seems to me that the ideal solution would be to install a boot loader on hd3 after *REMOVING* the boot loader from hd1. Removing the old grub bootloader DOES NOT result in an unbootable system. Rather, it allows the user to boot the system that he prefers. In briefly reviewing previous discussions on this list and on usenet, I've come across the suggestion to use DOS fdisk /mbr. I'm not sure that this would work in the aforementioned scenario, and in any case, it seems a bit lame to fall back on DOS in order to remedy a flaw in linux software. Do a search through the usenet archives on google and you'll turn up a gezillion posts asking how to remove grub. The standard replies are: Why would you want to? and Use DOS fdisk /mbr. Neither of these replies will adequately resolve the problem outlined above. Could someone suggest another solution??? It seems to me that it would be easy enough for someone familiar with disk geometry (not me :-)) to add an argument to grub (--erase) permitting grub to be cleanly removed from an MBR and a partition boot record. Alternatively, 'dd' could probably do the trick. Could some kind soul recommend the proper lengths and offsets? Comments? Suggestions? -- RD Lawrence 504-443-5000 ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub -- Mathieu Chouquet-Stringer E-Mail : [EMAIL PROTECTED] It is exactly because a man cannot do a thing that he is a proper judge of it. -- Oscar Wilde ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Thanks for the suggestion, but we don't have any DOS floppies. Is there a way that this problem can be fixed *WITHOUT* purchasing an MSDOS 6.x license from microsoft? Mathieu Chouquet-Stringer wrote: Boot from a dos floppy and: fdisk /mbr [EMAIL PROTECTED] (RD Lawrence) writes: In briefly reviewing previous discussions on this list and on usenet, I've come across the suggestion to use DOS fdisk /mbr. I'm not sure that this would work in the aforementioned scenario, and in any case, it seems a bit lame to fall back on DOS in order to remedy a flaw in linux software. ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub -- Mathieu Chouquet-Stringer E-Mail : [EMAIL PROTECTED] It is exactly because a man cannot do a thing that he is a proper judge of it. -- Oscar Wilde -- Russell Lawrence WP Group You can reach me for the next four weeks by simply replying to the return address embedded in the header of this message. However, future correspondence should be addressed to my permanent mailbox, [EMAIL PROTECTED] ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 RD Lawrence wrote: |Thanks for the suggestion, but we don't have any DOS floppies. Is there a |way that this problem can be fixed *WITHOUT* purchasing an MSDOS 6.x license |from microsoft? | freedos? http://www.freedos.org/ - -- Iain RaeTel:01316505202 Computing OfficerJCMB:2148 Division of Informatics The University of Edinburgh -BEGIN PGP SIGNATURE- Version: GnuPG v1.0.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE8rJ17qpRa2ubDM+cRAiyoAJ4/rUbcr7TLFehaWtmLFEbkzGuIbwCePD2s MIOd3eVIBjfEAaPLIz6Rm4g= =YSkP -END PGP SIGNATURE- ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Even if we had DOS floppies, I'm not sure this solution would work without juggling the cable connections. Perhaps I'm mistaken, but I've heard that Microsoft's fdisk program makes the ASSUMPTION that the boot disk is hda0,0. In the situations that I keep coming across, this isn't the case. RD Lawrence wrote: Thanks for the suggestion, but we don't have any DOS floppies. Is there a way that this problem can be fixed *WITHOUT* purchasing an MSDOS 6.x license from microsoft? Mathieu Chouquet-Stringer wrote: Boot from a dos floppy and: fdisk /mbr [EMAIL PROTECTED] (RD Lawrence) writes: In briefly reviewing previous discussions on this list and on usenet, I've come across the suggestion to use DOS fdisk /mbr. I'm not sure that this would work in the aforementioned scenario, and in any case, it seems a bit lame to fall back on DOS in order to remedy a flaw in linux software. ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub -- Mathieu Chouquet-Stringer E-Mail : [EMAIL PROTECTED] It is exactly because a man cannot do a thing that he is a proper judge of it. -- Oscar Wilde -- Russell Lawrence WP Group You can reach me for the next four weeks by simply replying to the return address embedded in the header of this message. However, future correspondence should be addressed to my permanent mailbox, [EMAIL PROTECTED] ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
On Thu, 4 Apr 2002, RD Lawrence wrote: |Mathieu Chouquet-Stringer wrote: | | Boot from a dos floppy and: | fdisk /mbr | |Thanks for the suggestion, but we don't have any DOS floppies. Is there a |way that this problem can be fixed *WITHOUT* purchasing an MSDOS 6.x license |from microsoft? Whoever said DOS == MS-DOS only ?? Take a look at FreeDos it should be having the same fdisk features and is opensource! Kingsly PS: I suppose you can do it with a MS Windows license too.. ;-) ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Hi! Thanks for the suggestion, but we don't have any DOS floppies. Is there a way that this problem can be fixed *WITHOUT* purchasing an MSDOS 6.x license from microsoft? Get OpenDOS: ftp://ftp.lineo.com/pub/drdos/OpenDOS.701/ -- Regards, Pavel Roskin ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
[EMAIL PROTECTED] (RD Lawrence) writes: Even if we had DOS floppies, I'm not sure this solution would work without juggling the cable connections. Perhaps I'm mistaken, but I've heard that Microsoft's fdisk program makes the ASSUMPTION that the boot disk is hda0,0. In the situations that I keep coming across, this isn't the case. Correct. So I really don't get why you want to remove grub from hd1 if you plan to boot from hd3... Boot from hd3 and don't give a damn about hd1! Perhaps I don't see the whole picture, excuse me in advance if it is the case... -- Mathieu Chouquet-Stringer E-Mail : [EMAIL PROTECTED] It is exactly because a man cannot do a thing that he is a proper judge of it. -- Oscar Wilde ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
At 04 Apr 2002 15:22:30 -0500, Mathieu Chouquet-Stringer wrote: Correct. So I really don't get why you want to remove grub from hd1 if you plan to boot from hd3... Boot from hd3 and don't give a damn about hd1! You are right. Russell just said nonsense. Okuji ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Yoshinori K. Okuji wrote: At 04 Apr 2002 15:22:30 -0500, Mathieu Chouquet-Stringer wrote: Correct. So I really don't get why you want to remove grub from hd1 if you plan to boot from hd3... Boot from hd3 and don't give a damn about hd1! You are right. Russell just said nonsense. Okuji Many thanks to John Kingsly for posting pertinent info on a promising method for removing grub. I'm not at liberty to divulge too many technical details, but I'm figuratively looking at a set of machines whose bios's appear to ignore boot flags and load the first boot loader encountered in the chain from hd0 to hd(n) without any regard whatsoever for the state of the boot toggle in the BR. All the machines share some common features, including the bios, recently installed ATA100 controllers, so-called huge ATA100 disks, and all of them were initially built on linux 2.2.x platforms circa 2.2.14 when both the ide drivers and fdisk had problems with drives exceeding 32G. My suspicion is that earlier versions of fdisk may have marginally corrupted the boot records... perhaps causing the bios to think that all boot flags are toggled on. When I have spare time , I'm planning to definitively track down the basic cause of the problem. Meanwhile, some of my customers can't seem to boot the last disk in the drive chain because grub was previously installed on a lower numbered drive. I'd like to solve their problem without rebuilding a gezillion partitions (ie, many days of work) or fiddling with the cable layouts (many hours of work) , and the EASY solution is to UNINSTALL grub on lower numbered drives (a few minutes of work). In principle, as well as in practice, it would make sense for grub code to be removable... regardless of the fact that the grub maintainers and some grub users can't fathom the need for such a capability. As I said before, the notion of using DOS software (whether free or otherwise) to accomplish this is unacceptable to many linux users for both political and technical reasons. ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Ok, now what you mean is worth considering. I couldn't figure out why you wanted to remove GRUB. Sorry, if my reply sounded offensive. I understand GRUB should make a backup before installing itself, and if a backup is made, writing grub-uninstall would be very easy. I'll investigate how backup/uninstall should work, since there are some situations where it is not very clear what that looks like (e.g. When one installed GRUB into the boot block of a partition and then installed GRUB into a MBR, which block should grub-uninstall recover? Both?). As for your problem, I don't have much to say, because I don't know how your BIOS checks if a drive is bootable. If it just checks the signature 0xAA55 at the end of the MBR, you could invalidate the MBR, by running dd if=/dev/zero of=/dev/hdb bs=1 count=2 seek=510, which fills the signature with zero. Okuji ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
Re: Need Help on Removing Grub (Again)
Yoshinori K. Okuji wrote: I understand GRUB should make a backup before installing itself, and if a backup is made, writing grub-uninstall would be very easy. I'll investigate how backup/uninstall should work, since there are some situations where it is not very clear what that looks like (e.g. When one installed GRUB into the boot block of a partition and then installed GRUB into a MBR, which block should grub-uninstall recover? Both?). All three cases should be selectable by the user: 1) MBR alone; 2) PBR alone; and 3) Both. Otherwise, problems will inevitably arise from unforseeable circumstances. :-) However, I don't think the ability to restore a boot record is nearly as important as the ability to just clean away the existing boot loader code. A user could always go back and re-install an older boot loader if necessary. As others have observed, the save, restore, and clean operations could easily be accomplished with dd, and wrapped up in a very small shell script. I would call it grubmagic. :-) but I suppose PowerQuest would sue us for ripping off their claim on software magic this and that. :-). If possible, the ability to (at the very least) clean the BRs without disturbing the partition table should be built into grub to reduce confusion and extra baggage for naive end-users. As for your problem, I don't have much to say, because I don't know how your BIOS checks if a drive is bootable. If it just checks the signature 0xAA55 at the end of the MBR, you could invalidate the MBR, by running dd if=/dev/zero of=/dev/hdb bs=1 count=2 seek=510, which fills the signature with zero. I apologize for my earlier (sleep-deprived) prose... which left out details that caused some confusion. I don't really think the bios is at fault, and I don't have any reason to think that grub is at fault (apart from extremely ambiguous documentation and the inability to remove its own code :-) ). I'm inclined to suspect that the problem lies with a previous version of 2.2.x fdisk that may have corrupted the boot records because of the huge disk bug. However, I'm assuming here that grub (unlike lilo) normally honors the status of the (in)active flag. If that's *not* the case, then we *definitely* need a way to uninstall grub. Otherwise, problems could ensue each and every time a user installs a new hard drive. Even if grub does honor the (in)active flag, it still makes sense to give it the capability to clean a BR for a variety of reasons apart from the specific one that I've outlined in the case at hand. -- RD Lawrence 504-443-5000 (USA) ___ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
NEED HELP!
I have a Hewlitt Packard that used to run Windows ME. I tryed to partition my hard drive and install Linux but I think that I partitioned it wrong. So I used my system recovery cd that came with Windows Me. I clicked full restore to format my hard disk and restore it to how it came. But after I did that Windows did not come on when I started it up. Grub came on and now my restore discs don't work anymore and I have no clue as to how to get into Windows. I can't get past grub. Can you please help me as soon as possible!! Thank you.
Re: [Bug-grub] NEED HELP!
you need to create a dos boot disk that contains fdisk, with this booted run 'fdisk /mbr' you should be back to where you were before, then if your game you can try again! On Wed, Sep 12, 2001 at 07:31:42PM -0400, [EMAIL PROTECTED] wrote: I have a Hewlitt Packard that used to run Windows ME. I tryed to partition my hard drive and install Linux but I think that I partitioned it wrong. So I used my system recovery cd that came with Windows Me. I clicked full restore to format my hard disk and restore it to how it came. But after I did that Windows did not come on when I started it up. Grub came on and now my restore discs don't work anymore and I have no clue as to how to get into Windows. I can't get past grub. Can you please help me as soon as possible!! Thank you. -- Jason Thomas Phone: +61 2 6257 7111 System Administrator - UID 0 Fax:+61 2 6257 7311 tSA Consulting Group Pty. Ltd. Mobile: 0418 29 66 81 1 Hall Street Lyneham ACT 2602 http://www.topic.com.au/ PGP signature
need help with syntax
Hi folks, I need a little help getting grub to work. I have powerboot as a primary loader in the MBR to choose either the first partition (win98) or the second partition which holds native linux. (I want to keep using powerboot in the MBR if possible since I paid 25 dollars for this loader and want to get my moneys worth from it) I would normally have used lilo in the second partition but its passed the 1024 limit and I dont want to change my partitions around. I have tried using the install command of grub to install its loaders into the superbock of the second partition (hopefully then powerboot can find grubs loader and then grubsloader will load /vmlinuz) but .. I dont think I'm getting the syntax for install in grub right... I had stage1 and stage 2 sitting in /boot/grub and in grub I tried install (hd0,1)/boot/grub/stage1 (hd0,1) (hd0,1)/boot/grub/stage2 is that right? or do I have to use stage1_lba (the disk is a 10.2 gig with the first partition ending around the 8.5 mark) Any help as to how to get grub to sit in the superblock of the second partition and have it start linux /vmlinuz would be most appreciated.. At the moment I'm having to rely on a floppy bootdisk for linux.. Cheers, Simon
