General :: What To Put In The Grub File And 'x' Flages To Reset To Tie All Together
Mar 20, 2011
I'm lost before I can start using linux I have to install grub; grub is used to start linux, before you can install grub you must start linux ..... OK, I've borrowed a live-dvd from a friend (my burner is stuffed), its got Grub v 1.98; so thats what I'm stuck with (at least for now) Maybe I'm not stuck, but I'm finding the live cd too large and confusing, with filesystems I've never heard of and I cant work out what I can and cant do, given its a non-volatile media.
Anyway grub2 is good, as I think I can boot ISO images from an msdos or linux partition, without burning a cd; however, its bad, as to create grub.cfg I will need to build grub2 for whatever flavor of linux I finally choose (can you compile Grub for any kernel and use any library to do it?) What I am trying to do is a "frugal install" of a smaller distro, with boot, fat16, swap, & distro partitions, (the computer is p5mmx 200/64MB which runs 98SE and off97 fine, but seems to be minimal for linux). All the instructions to do this, tell you to copy the files across and modify your grub config (ie you already have it installed)
This is where I'm up to, I have created 2primary & 2 extended partitions. Put ext2 filesystems onto the first primary partition (for booting), and the 2nd extended (for linux) Run grub-install, so there is a directory grub at the root of the first partition. created a "linux" directory at the root of each of the ext2 partitions copied vmlinuz & initrd.gz to "linux" on the boot partition, copied the .sfs files to the other partition directory I don't know what to put in the grub file and what 'x' flages to reset to tie all this together.
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Dec 18, 2009
Is there some workaround by changing grub settings other than rewiring the hard disks or changing in bios..
1. my bios is getting reset (low battery)
2. my hard disks are sata and ide, so the ide one is loaded as hd1 by default, cudn't find any way to change that..
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Jun 2, 2010
Whenever there is a kernel upgrade, "update-grub" is run and my customized "/boot/grub/grub.cfg" is gone. is there any way to prevent this?
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Aug 12, 2010
In 9.10 after kernel update there was always prompt window if i want to do changes in grub config file. In 10.04 there's no such question and every time i do update i have to edit my grub config file in order to get rid of older kernels and set windows as second position in boot menu. why does it happen and how to stop updates overwrite my grub config?
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Sep 17, 2010
I currently have a problem where when xubuntu is restarted using the power button, it will prompt the user with grub asking which selection to boot (xubuntu recovery or xubuntu) this feature itself is fine, but for some reason there is no timer, which means that unless you hit enter, it will always be stuck on the GRUB selection screen. I am wondering if there is any way to change this, is there anyway to enter a timer into the system so no matter what, after x seconds it will boot xubuntu?
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Aug 3, 2011
My problem, GRUB loader appears when it normally did not and Ubuntu fails to boot. My story, I installed ubuntu on a HP Touchsmart laptop a month ago because I was having troubles with Windows and... well I just wanted to install ubuntu. All goes well until a week ago when my sound was permanently muted through a hardware switch and ubuntu was not detecting it. I tried hitting the button on my laptop but nothing worked. Soo... I tried resetting my BIOS in hopes that it would fix it. I set the bios to its defaults and booted. This is where it got weird. the GRUB loader appeared when it normally did not and upon booting, a black screen with flashing cursor would show up and then... nothing. I changed the bios settings back to what they were and still nothing.
I have removed the silent boot from the GRUB boot line and can see whats going on... a little, the last thing it shows is "Running /scripts/init-bottom ... done." annnd nothing else. When booting in recovery mode it stops after 30 or so seconds on...
Code:
ACPI: Power Button [PWRB]
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/inp
and just ends on that line. the previous line shows closing the Lid as a button.
I have tried booting into a live USB (as the laptop has no cd drive) and everything works fine.
how the BIOS would be related to GRUB/booting..
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Apr 17, 2009
Being able to reset the root password by booting into single usermode by editing grub. This is a MAJOR flaw. I know it makes no real difference against internet bourne attacks, but even so I must say I found it shocking. The only way I've found to stop this is to encrypt the entire HDD, so noone could get into single user mode without first knowing the encryption key/password.
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May 28, 2010
I have a dual boot system: windows xp and suse(10.2). I had to reinstall windows(again). When I tried to use the installer, it kept reseting my partitions to 500gb+ to linux. Nothing I tried would let me put it to the way it was(50gb to linux). Repair install failed. Update wouldn't work. MSwindows in the grub boot menu disappeared. I tried reinstalling suse. The installer blocked any attempt by me to put the partitions back to normal. How do reset the windows and linux partitions(850gb windows, 50gb to suse linux)?
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Jun 3, 2011
I'm unable to reset using either the reset option in gnome shell or the command using a terminal. When I select it the shell exits and displays the graphic "exploding" and then it just sits there. Shutdown works fine; just no reset. Any ideas? I've installed from the DVD. I booted the live CD and it resets just fine so I know it's no my hardware
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Jul 3, 2010
I just recently installed a kernel, everything works fine after reboot except. When I use nano -w /boot/grub/grub.conf I get /boot/grub/grub.conf: No such file or directoryIs there something i have to do after installing a new kernel in Gentoo Linux.I can't access my /boot all that appears there is a symlink to /boot How can i see my kernels located in /boot.
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Mar 11, 2011
How to Reset File enigma_active.so to Source Code Is in the compressed file Makefile
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Apr 25, 2010
If I re-install Grub 2 from the live CD should that reset all the personalisations such as as splash screen and colours in the Grub splash to default? In my case they are not resetting. I would expect them to revert to the default black/white you get when initially installing the OS. the Grub timeout to be a lot less than its supposed to be? e.g. the default timeout setting of 5 seconds is more like 2 or 3 in reality, and when I set my prefered value to 2 seconds it results in being about 1/4 sec or so.
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Jun 27, 2010
I have to get soem statistic about interfaces from /proc/net/dev. but statistic on this file is reset when get reach more than 4G byte.I think linux has limitation on this case.
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Nov 11, 2010
I'm having some trouble uploading large log files to our server using perl. We are required to upload files larger than 2GB (regardless of how infeasible that sounds). I have tried the same thing on two different servers:
Code:
1. Linux 2.6.32-24-generic #39-Ubuntu 10.04 i686 GNU/Linux Server version: Apache/2.2.14 (Ubuntu)
2. Linux 2.6.5-7.244-smp #1 SLES_9 x86_64 x86_64 x86_64 GNU/Linux Server version: Apache/2.0.49 Smaller files upload without issue, however when a file larger than 1048576000 bytes is sent to be uploaded, the browser immediately fails, yielding this:
Code: This web page is not available. The web page at blah might be temporarily down or it may have moved permanently to a new web address. Below is the original error message: Error 101 net::ERR_CONNECTION_RESET): Unknown error. The apache log gives some indication of the file size limit:
Code: Requested content-length of 5954683941 is larger than the configured limit of 1048576000 However, I have looked through the apache config files and can't seem to find where this setting for content-length is. Is there an absolute maximum setting for file uploads in apache? Is it also possible that this is actually caused by a Perl error?
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Apr 14, 2010
I did the following:
created an empty .img file with dd
associated it to /dev/loop0 with losetup
created a partition in it with fdisk
formatted such partition with mke2fs
copied a custom GNU/Linux system into that partition
Now I'd like to make the .img file bootable by installing grub into its MBR and /boot directory. My goal is to load the .img file with qemu. It would be better if grub2 is used instead of grub legacy.
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Sep 15, 2010
My cd /boot/grub/ shows (required only file shown): -r--r--r-- grub.cfg
I tried to change the permission of this via, chmod u+w grub.cfg but the file permission did not change why??
How can I change the file permission of grub.cfg?
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Mar 15, 2010
I am having issues booting my LFS system on my hp nc8230 notebook running LFS SVN. Grub was built and installed per the book. My file system is almost as simple as it gets:
/dev/sda1 is swap
/dev/sda2 is my LFS partition /
The LFS live cd still uses the now deprecated drivers for HDD's thus as far as the livecd is concerned my block devices is (hd0) and /dev/hda2 for the root respectively. However the kernel to be booted runs on the newer drivers thus on boot my block device should be referenced as /dev/sda2 for the root. Grub is in fact installed on the MBR what happens is right when my system boots I get a file not found error the grub CFG is pointing to the correct block device and root partition from what can be seen by looking at the grub.
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Jul 27, 2010
During my several experiment on linux I accidentally put the default runlevel to the value 6..thus before starting its going to restart ..currently running mint 9. there is only one way that somehow i can edit that file from grub command line.
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Oct 28, 2009
The new GRUB2 was supposed to configure itself from the old grub, but got the kernel image partition wrong.I have booted from Knoppix live cd, but need to write to system files. I have searched, and found several suggestions that apparently work on Win machines, but RO permission for root on Linux is a harder nut to crack.
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Jun 17, 2011
I have looked at the GNU GRUB Manual 1.99 at [URL] but I cannot find an explanation of what the kernel entry / command in the grub.conf file means. I get what's the meaning of that entry but where is described what it actually is and what are proper.
I suppose this entry / command was actual in GRUB Legacy, but I cannot find where it is described...
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Mar 4, 2011
I am using Ubuntu 10.10 dual booted with windows vista. My boot is in a separate partition (sda5). My computer told me that there was limited space on that partition so I tried to clean things up using apt-get by removing old kernels. Turns out I didn't do it correctly because I consistently get an 'ERROR 15' when I shut down and rebooted my computer. I have a live-CD USB-stick so I tried reinstalling grub, (grub-install) updating the menu.lst (update-grub), and manually going through menu.lst and changing to root=(hd0,4) and groot=/dev/sda6. But I still get this ERROR 15 when I reboot.
when I do
sudo grub
find /boot/grub/stage1
find /boot/stage1
Both give me an ERROR 15 message and I'm not sure how to proceed with a diagnosis. When I ran update-grub, occasionally it used to tell me that /etc/fstab may be incorrect. Here is /boot/grub (note that stage 1 does exist!) ( this is /dev/sda5)
Code:
root@ubuntu:/# ls /boot/grub/
default fat_stage1_5 jfs_stage1_5 minix_stage1_5 stage2
device.map grubenv menu.lst reiserfs_stage1_5 xfs_stage1_5
e2fs_stage1_5 installed-version menu.lst~ stage1
Here is my problem
Code:
grub> find /boot/grub/stage1
Error 15: File not found
grub> find /boot/stage1
Error 15: File not found
I guess my main question is, if stage1 can't be found, what does that mean? What should I do next?
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Apr 7, 2010
after doing an upgrade to 10.4 and updating grub I get this message. how do I address this
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Aug 15, 2010
I gave sda1-2 for windows and sda 3-4-5 on an extended partition for my linux OS. I installed ubuntu on sda 7 (when I go into disk utilities it shows up as sda 7 idk why) alongside another ubuntu on sda 5 ( EXTENDEDPARTITION : sda 5-6-7 ) so I could remove mandriva bootloader.Since I did, I removed ubuntu (sda 7) since it wasn't necessary but after it gave me the grub file not found.Obviously yes, since GRUB was installed from sda 7 but i have another grub.conf on sda 5 and I would like to know how to change the path of the grub reader to sda 5? or must I install all over again de grub loader?
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Nov 20, 2010
my Setup is Fedora 14 x64 + radeon hd 4830 i've downloaded .run package from ati site with latest driver for x64 systems. installed it, but didn't edited grub.conf becouse i didn't understood anything there (probably didn't spent enough time to get things understand) Now i've lost possibility to enter my Fedora system. during boot it lost it's modern blue boot screen (with filling drop), it was replaced by standard old boot screen with triple-color stripe. after this boot screen monitor start blinking going on and off. and on last step i'm getting "Fedora 14 boot bla bla bla something" on screen. nothing works except Ctrl+Alt+Delete. system reboots showing successful daemons shutting sequence. How can i edit grub menu from initial grub screen is it possible to it's own 'e' option or 'c' from grub command line?
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Jul 18, 2011
I have a pc that was running with the latest version of ubuntu and i wanted to install just vista for somereasons.
And what i did is to format the main driver and try to boot it from vista CD and as you may guess i have an error that says: unknown file system grub rescue
Each time i start the pc. I have an ubuntu live cd and also the vista cd, so what should i do now? the vista cd dosnt boot and the same screen appears all the time.
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May 7, 2010
I tried making some changes to /boot/grub/menu.lst file by logging in thru su but it throws following error:
[root@localhost avi]# /boot/grub/menu/lst | gedit
(gedit:4874): GnomeUI-WARNING **:
While connecting to session manager:
Authentication Rejected, reason : None of the
authentication protocols specified are supported and host-based authentication failed.
bash: /boot/grub/menu/lst: No such file or directory
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Aug 31, 2010
I would like to modify the boot loader settings and triedo open the file grub.confHowever, it is said that the file could not be opened, as seen in the attachment.Tried to authenticate as 'root' before opening the file, but the problem still exist...
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it.
After this I restarted but I can't get into either OS. I get an error that says Error: unknown filesystem grub rescue>
I think I need to fix something in grub. I have been booting off of a usb stick with linux on it in the mean time.
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it. After this I restarted but I can't get into either OS.
I get an error that says Error: unknown filesystem grub rescue>
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Dec 8, 2010
I had only Arch on an HDD.sda2 was "/".Now it's with Windows XP and sda2 is not a root any more but a container partition wich has sda{5,6,7} in it. I configured the dual boot and it works. It finds Arch and boots it, but not completely. Stops after some time and says: unable to determine the file system type of /dev/sda2. FSTAB is configured, sda{5,6,7} are on their places. So I can't boot Arch. XP boots correctly. What do I do with this error?Also it says: try adding rootfstype=your_filesystem_type to kernel command line.
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