وقتی دستورات واسه گراب رو در ترمینال لایو میزنم:
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
ubuntu@ubuntu:~$ update-grub #
grub-mkconfig: You must run this as root
ubuntu@ubuntu:~$ update-grub
grub-mkconfig: You must run this as root
ubuntu@ubuntu:~$ sudo update-grub #
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
ubuntu@ubuntu:~$ sudo fdisk -l $
ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x43478bc0
Device Boot Start End Blocks Id System
/dev/sda1 2048 31250431 15624192 82 Linux swap / Solaris
/dev/sda2 * 31250432 109375487 39062528 83 Linux
/dev/sda3 109375488 1953523711 922074112 83 Linux
Disk /dev/sdb: 4016 MB, 4016046080 bytes
255 heads, 63 sectors/track, 488 cylinders, total 7843840 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 * 128 7843839 3921856 b W95 FAT32
ubuntu@ubuntu:~$ sudo mount /dev/sda1 /mnt
mount: you must specify the filesystem type
ubuntu@ubuntu:~$ sudo mount /dev/sda /mnt
mount: you must specify the filesystem type
ubuntu@ubuntu:~$ sudo mount /dev/sda2 /mnt $
Usage: mount -V : print version
mount -h : print this help
mount : list mounted filesystems
mount -l : idem, including volume labels
So far the informational part. Next the mounting.
The command is `mount [-t fstype] something somewhere'.
Details found in /etc/fstab may be omitted.
mount -a [-t|-O] ... : mount all stuff from /etc/fstab
mount device : mount device at the known place
mount directory : mount known device here
mount -t type dev dir : ordinary mount command
Note that one does not really mount a device, one mounts
a filesystem (of the given type) found on the device.
One can also mount an already visible directory tree elsewhere:
mount --bind olddir newdir
or move a subtree:
mount --move olddir newdir
One can change the type of mount containing the directory dir:
mount --make-shared dir
mount --make-slave dir
mount --make-private dir
mount --make-unbindable dir
One can change the type of all the mounts in a mount subtree
containing the directory dir:
mount --make-rshared dir
mount --make-rslave dir
mount --make-rprivate dir
mount --make-runbindable dir
A device can be given by name, say /dev/hda1 or /dev/cdrom,
or by label, using -L label or by uuid, using -U uuid .
Other options: [-nfFrsvw] [-o options] [-p passwdfd].
For many more details, say man 8 mount .
ubuntu@ubuntu:~$ sudo mount /dev/sda2 /mnt
ubuntu@ubuntu:~$ sudo mount /dev/sda2 /mnt
mount: /dev/sda2 already mounted or /mnt busy
mount: according to mtab, /dev/sda2 is already mounted on /mnt
ubuntu@ubuntu:~$ sudo mount --bind /dev/ /mnt/dev
ubuntu@ubuntu:~$ sudo mount --bind /dev/ /mnt/dev
ubuntu@ubuntu:~$ sudo mount --bind /proc /mnt/proc $
Usage: mount -V : print version
mount -h : print this help
mount : list mounted filesystems
mount -l : idem, including volume labels
So far the informational part. Next the mounting.
The command is `mount [-t fstype] something somewhere'.
Details found in /etc/fstab may be omitted.
mount -a [-t|-O] ... : mount all stuff from /etc/fstab
mount device : mount device at the known place
mount directory : mount known device here
mount -t type dev dir : ordinary mount command
Note that one does not really mount a device, one mounts
a filesystem (of the given type) found on the device.
One can also mount an already visible directory tree elsewhere:
mount --bind olddir newdir
or move a subtree:
mount --move olddir newdir
One can change the type of mount containing the directory dir:
mount --make-shared dir
mount --make-slave dir
mount --make-private dir
mount --make-unbindable dir
One can change the type of all the mounts in a mount subtree
containing the directory dir:
mount --make-rshared dir
mount --make-rslave dir
mount --make-rprivate dir
mount --make-runbindable dir
A device can be given by name, say /dev/hda1 or /dev/cdrom,
or by label, using -L label or by uuid, using -U uuid .
Other options: [-nfFrsvw] [-o options] [-p passwdfd].
For many more details, say man 8 mount .
ubuntu@ubuntu:~$ sudo mount --bind /proc /mnt/proc
ubuntu@ubuntu:~$ sudo mount /dev/sda1 /mnt/boot
mount: you must specify the filesystem type
ubuntu@ubuntu:~$ sudo mount /dev/sda2 /mnt/boot
ubuntu@ubuntu:~$ sudo chroot /mnt
root@ubuntu:/# grub-install --root-directory=/mnt/ /dev/sda
Installation finished. No error reported.
root@ubuntu:/# grub-install --root-directory=/mnt/ /dev/sda #
Installation finished. No error reported.
root@ubuntu:/# update-grub #
Generating grub.cfg ...
cat: /boot/grub/video.lst: No such file or directory
Cannot find list of partitions! (Try mounting /sys.)
done
root@ubuntu:/# sudo umount /mnt
sudo: unable to resolve host ubuntu
umount: /mnt: not mounted
موضوع: مشکل در تعمیر گراب {....حل شد....} (دفعات بازدید: 14253 بار)
