Nezafungovalo to. Po restartu PC přes HDD nenabootoval. Nevím jetli se ten sektor vynuloval, to možná ano, ale při pokusu o reinstalaci GRUBU to pak hlásilo něco neexistujícího viz. výpis níže. N
ubuntu@ubuntu:~$ sudo dd if=/dev/sda of=~/first_63_sectors bs=512 count=63
63+0 records in
63+0 records out
32256 bytes (32 kB) copied, 0,000876949 s, 36,8 MB/s
ubuntu@ubuntu:~$ sudo dd if=/dev/zero of=/dev/sda bs=512 count=1 seek=32
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0,000446127 s, 1,1 MB/s
ubuntu@ubuntu:~$ sudo mount /dev/sda* /media/sda*
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 --bin /dev /media/sda*/dev
mount: mount point /media/sda*/dev does not exist
ubuntu@ubuntu:~$ sudo mount --bind /dev /media/sda*/dev
mount: mount point /media/sda*/dev does not exist
ubuntu@ubuntu:~$ sudo mount --bind /proc /media/sda*/proc
mount: mount point /media/sda*/proc does not exist
ubuntu@ubuntu:~$ sudo mount --bind /sys /media/sda*/sys
mount: mount point /media/sda*/sys does not exist
ubuntu@ubuntu:~$ sudo chroot /media/sda*
chroot: cannot change root directory to /media/sda*: No such file or directory
ubuntu@ubuntu:~$ sudo update-grub
/usr/sbin/grub-probe: error: failed to get canonical path of /cow.
ubuntu@ubuntu:~$