dev/sda – The first SCSI disk SCSI ID address-wise. dev/sdb – The second SCSI disk address-wise and so on. dev/scd0 or /dev/sr0 – The first SCSI CD-ROM. dev/hda – The primary disk on IDE primary controller.

What is SDB and SDA?

dev/sda – The first SCSI disk SCSI ID address-wise. dev/sdb – The second SCSI disk address-wise and so on. dev/scd0 or /dev/sr0 – The first SCSI CD-ROM. dev/hda – The primary disk on IDE primary controller.

Where do I install GRUB SDA or sda1?

grub-install /dev/sda Install Grub files in directory /boot/grub of current partition. Install boot loader in master boot record of first hard disk.

What is hd1 and hd0?

To give an example, if a system has more than one hard drive, GRUB refers to the first hard drive as (hd0) and the second as (hd1). Likewise, GRUB refers to the first partition on the first drive as (hd0,0) and the third partition on the second hard drive as (hd1,2).

How do I reinstall GRUB bootloader?

Resolution

  1. Place your SLES/SLED 10 CD 1 or DVD in the drive and boot up to the CD or DVD.
  2. Enter the command “fdisk -l”.
  3. Enter the command “mount /dev/sda2 /mnt”.
  4. Enter the command “grub-install –root-directory=/mnt /dev/sda”.
  5. Once this command completes successfully reboot your system by entering the command “reboot”.

How do I convert SDA to SDB?

Replace /dev/sda with /dev/sdb device name assignment

  1. (make sure both devices are unmounted)
  2. # cat /proc/partitions.
  3. # cd /dev.
  4. # rm sda,sdb.
  5. # mknod /dev/sda b # fill with major and minor devices obtained from /proc/partitions for sdb.
  6. # mknod /dev/sdb b 8 0 # verify these major, minor values for sda in /proc/partitions.

What does SD stand for in Dev SDA?

The term sd stands for SCSI disk, that is to say, it means Small Computer System Interface disk. So, sda means the first SCSI hard disk. Likewise,/hda, the individual partition in the disk takes names as sda1, sda2, etc.. The active partition is indicated by an * in the middle column.

Where should I install GRUB bootloader?

Usually, you should install the boot loader on your first machine hard disk MBR, which is / dev/sda in most cases. The installation process of GRUB will start as soon as you hit the Enter key.

How do I know where GRUB is installed?

The GRUB 2 files will normally be located in the /boot/grub and /etc/grub. d folders and the /etc/default/grub file in the partition containing the Ubuntu installation. If another Ubuntu/Linux distribution controlled the boot process, it will be replaced by the GRUB 2 settings in the new installation.

What is gpt2 hd0?

(hd0) represents the raw hard drive. (hd0,gpt1) and (hd0,gpt2) are the first and second GPT partitions of (hd0) respectively. So the first partition (hd0,gpt1) is the EFI partition and the second partition (hd0,gpt2) is the root partition.

What is hd0 on SpeedFan?

It’s the operating temps of your first hard disk drive. HD0 is the #1 hard disk. Thats a normal temp for a HDD. What program are you using to check temps? I just downloaded yesterday SpeedFan 4.41.

What does OS Prober do?

os-prober is a command that lists other operating systems. It is used during installation and reconfiguration to create a GRUB boot menu that shows other installed OSes as well as Ubuntu.