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HiddenWindshield's questions

Martin Hope
HiddenWindshield
Asked: 2019-09-18 08:14:58 +0800 CST
  • 1

我在 IT 部门工作。有时我们被要求从发生故障的驱动器中获取数据。我们有各种 SATA-to-USB、ATA-to-USB 等用于此任务的适配器。但是，有时他们会向计算机报告错误的块大小（或者他们根本没有报告任何块大小，而我的 Linux 笔记本电脑只是假设了错误的大小）。当内核想要使用 4096 字节的块大小时，我如何告诉内核使用 512 字节的块大小，反之亦然？

我正在运行 Fedora，内核版本 5.2.11-100.fc29.x86_64，如果这有什么不同的话。

这是我被要求提供的一些额外数据（设备 16（sdb）是 Coolmax，19（sdd）是 StarTech）：

$ sudo lsusb | grep JMicron
Bus 001 Device 016: ID 152d:2338 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 Hi-Speed USB to SATA & PATA Combo Bridge
Bus 001 Device 019: ID 152d:2338 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 Hi-Speed USB to SATA & PATA Combo Bridge

$ cat /sys/block/sdb/queue/logical_block_size 
4096
$ cat /sys/block/sdd/queue/logical_block_size 
4096

$ cat /sys/block/sdb/queue/physical_block_size
4096
$ cat /sys/block/sdd/queue/physical_block_size 
4096

$ sudo sg_readcap /dev/sdb
Read Capacity results:
   Last logical block address=366284645 (0x15d50f65), Number of blocks=366284646
   Logical block length=4096 bytes
Hence:
   Device size: 1500301910016 bytes, 1430799.4 MiB, 1500.30 GB
$ sudo sg_readcap /dev/sdd
Read Capacity results:
   Last logical block address=122096645 (0x7470c05), Number of blocks=122096646
   Logical block length=4096 bytes
Hence:
   Device size: 500107862016 bytes, 476940.0 MiB, 500.11 GB

$ sudo sg_readcap -16 /dev/sdb
Read Capacity results:
   Protection: prot_en=0, p_type=0, p_i_exponent=0
   Logical block provisioning: lbpme=0, lbprz=0
   Last logical block address=2930277167 (0xaea87b2f), Number of logical blocks=2930277168
   Logical block length=512 bytes
   Logical blocks per physical block exponent=0
   Lowest aligned logical block address=0
Hence:
   Device size: 1500301910016 bytes, 1430799.4 MiB, 1500.30 GB
$ sudo sg_readcap -16 /dev/sdd
Read Capacity results:
   Protection: prot_en=0, p_type=0, p_i_exponent=0
   Logical block provisioning: lbpme=0, lbprz=0
   Last logical block address=976773167 (0x3a38602f), Number of logical blocks=976773168
   Logical block length=512 bytes
   Logical blocks per physical block exponent=0
   Lowest aligned logical block address=0
Hence:
   Device size: 500107862016 bytes, 476940.0 MiB, 500.11 GB
linux
Martin Hope
HiddenWindshield
Asked: 2018-10-11 12:16:43 +0800 CST
  • 1

我正在尝试使用 wget 通过 FTP 镜像目录。我正在使用的命令是

wget -m ftp://user:[email protected]/foo/bar/

但是，当我运行它时，我得到以下信息：

--2018-10-10 15:01:32--  ftp://user:*password*@192.168.1.1/foo/bar/
       => ‘192.168.3.150/foo/bar/.listing’
Connecting to 192.168.1.1:21... connected.
Logging in as user ... Logged in!
==> SYST ... done.    ==> PWD ... done.
==> TYPE I ... done.  ==> CWD (1) /usr/user/foo/bar ... 
No such directory ‘foo/bar’.

我搜索了手册页，并用谷歌搜索，但我无法弄清楚。如何让 wget 实际下载目录“/foo/bar/”，而不是“/usr/user/foo/bar/”？

wget ftp