wiki:jazz/13-11-23

Version 4 (modified by jazz, 11 years ago) (diff)

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2013-11-23

4TB 硬碟開機

  • <狀況> 使用 preseed 安裝 Ubuntu 12.04 到一 4TB 硬碟,分割區自動切割為 /dev/sda1 (未格式化) , /dev/sda2 (EXT4), /dev/sda3 (SWAP)
    • 掛載 /dev/sda2 確實有 Ubuntu 12.04 安裝後的檔案,但無法開機。
  • <懷疑> 找了些資料,首先,因為太大,必須改用 GPT。這一點 Ubuntu 12.04 確實已經改用 GPT 了。
    • 其次,應該就是 grub 如何正確安裝到 GPT 的硬碟上,好讓它可以正常開機。
    • 條件一:磁區必須是 BIOS Boot Partition 或 EFI System Partition - 參考來源
      Be aware that if you're booting from a GPT disk, you may need to include special partitions -- 
      either a BIOS Boot Partition for BIOS-based computers or an EFI System Partition (ESP) for EFI- or UEFI-based computers. 
      If the disk isn't a boot disk, you don't need these features. 
      
    • 驗證工具:gfdisk
      parted isn't the only GPT-capable partitioning tool in Linux. Anything based on libparted (parted, GParted, 
      Palimpsest Disk Utility, or others) will do, as will the GPT fdisk tools (gdisk or sgdisk). The util-linux 
      tools (fdisk, sfdisk, and cfdisk) can't handle GPT. The Ubuntu installer is based on libparted and so is GPT-capable.
      
  • <實驗> 產生一個 4TB 的虛擬硬碟給 VirtualBox 用。
    ~$ sudo apt-get install qemu-utils
    ~$ qemu-img create -f vmdk Ubuntu_4TB.vmdk 4T
    

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