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Martin Hope
r45i
Asked: 2022-06-16 01:15:55 +0800 CST
  • 1

我是使用 LUKS 的新手。成功安装后，/dev/sda我不明白/dev/sda1, /dev/sda2硬盘上的分区代表什么。我希望看到唯一的一个加密分区。

解密前，/dev/sda结构如下：

❯ lsblk
NAME                   MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda                      8:0    0   1.8T  0 disk
├─sda1                   8:1    0 168.8G  0 part
└─sda2                   8:2    0 717.4G  0 part

解密后：

❯ sudo cryptsetup open /dev/sda silverbox
❯ lsblk
NAME                   MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda                      8:0    0   1.8T  0 disk
├─sda1                   8:1    0 168.8G  0 part
├─sda2                   8:2    0 717.4G  0 part
└─silverbox            253:3    0   1.8T  0 crypt

❯ lsblk --fs
NAME                   FSTYPE      LABEL UUID                                   FSAVAIL FSUSE% MOUNTPOINT
sda                    crypto_LUKS       42a9febd-2d7b-4c12-b92a-4e1ec6a1b5a5
├─sda1
├─sda2
└─silverbox            ext4              b692ba9b-ad36-4689-9b17-5b03af684130      1.6T     7% /media/vol/b692ba9b-ad36-4689-9b17-5b03af684130

silverbox是一个1.8TB的专用数据分区。168.8G和717,4G分区的目的是什么？

为什么它们的总大小不是 1.8TB？

luks
Martin Hope
r45i
Asked: 2022-02-21 11:29:43 +0800 CST
  • 2

我在安装带有lspci无法识别设备的内核 5.13 的 Kubuntu 20.04 后发现。现在看起来是这样的：

$ lspci
0:00.0 Host bridge: Intel Corporation Device 9a14 (rev 01)
00:02.0 VGA compatible controller: Intel Corporation Device 9a49 (rev 01)
00:04.0 Signal processing controller: Intel Corporation Device 9a03 (rev 01)
00:06.0 PCI bridge: Intel Corporation Device 9a09 (rev 01)
00:07.0 PCI bridge: Intel Corporation Device 9a23 (rev 01)
00:07.2 PCI bridge: Intel Corporation Device 9a27 (rev 01)
00:08.0 System peripheral: Intel Corporation Device 9a11 (rev 01)
00:0a.0 Signal processing controller: Intel Corporation Device 9a0d (rev 01)
00:0d.0 USB controller: Intel Corporation Device 9a13 (rev 01)
00:0d.2 USB controller: Intel Corporation Device 9a1b (rev 01)
00:0d.3 USB controller: Intel Corporation Device 9a1d (rev 01)
00:12.0 Serial controller: Intel Corporation Device a0fc (rev 20)
00:14.0 USB controller: Intel Corporation Device a0ed (rev 20)
00:14.2 RAM memory: Intel Corporation Device a0ef (rev 20)
00:14.3 Network controller: Intel Corporation Device a0f0 (rev 20)
00:15.0 Serial bus controller [0c80]: Intel Corporation Device a0e8 (rev 20)
00:15.1 Serial bus controller [0c80]: Intel Corporation Device a0e9 (rev 20)
00:16.0 Communication controller: Intel Corporation Device a0e0 (rev 20)
00:19.0 Serial bus controller [0c80]: Intel Corporation Device a0c5 (rev 20)
00:19.1 Serial bus controller [0c80]: Intel Corporation Device a0c6 (rev 20)
00:1d.0 PCI bridge: Intel Corporation Device a0b3 (rev 20)
00:1f.0 ISA bridge: Intel Corporation Device a082 (rev 20)
00:1f.3 Multimedia audio controller: Intel Corporation Device a0c8 (rev 20)
00:1f.4 SMBus: Intel Corporation Device a0a3 (rev 20)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Device a0a4 (rev 20)

值得注意的是，当我使用内核 5.13 安装和测试 Kubuntu 21.10 时，它们被正确识别。

什么可能是错误的，它会影响操作系统的功能吗？

intel