我正在尝试从主板坏了的 NAS（Acer Altos EasyStore M2）中检索数据。NAS 中的系统基于 CentOS 5，并使用了 Falcon（FalconStore）的一些软件。
我从 NAS 中移除磁盘并连接到其他计算机。从实时媒体 (ubuntu) 启动 Linux 后，我看到所有 4 个磁盘，系统检测到 RAID 分区并重新组装了两个 RAID 设备。但我无法从 RAID 设备安装任何分区。
磁盘 /dev/sda 上的分区（sdb、sdc 和 sdd 相同）：
Disk /dev/sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: ST1000DM010-2EP1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sda1 1 6297479 6297479 3G 83 Linux
/dev/sda2 6297480 7357769 1060290 517.7M 82 Linux swap / Solaris
/dev/sda3 7357770 1953525167 1946167398 928G 89 unknown
组装好的 RAID 设备：
Disk /dev/md127: 3 GiB, 3224240128 bytes, 6297344 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 3584 bytes
Disk /dev/md126: 1.83 TiB, 1992875180032 bytes, 3892334336 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/md126p1 1 16064 16064 7.9M 77 unknown
/dev/md126p2 16065 3892334335 3892318271 1.8T 88 Linux plaintext
/proc/mdstat 中的 RAID 状态：
Personalities : [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid10]
md126 : active (auto-read-only) raid5 sdd3[0] sdb3[1] sda3[3](S) sdc3[2]
1946167168 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]
md127 : active (auto-read-only) raid1 sdc1[1] sdd1[2] sdb1[0] sda1[3]
3148672 blocks [4/4] [UUUU]
unused devices: <none>
md127 看起来像系统磁盘（所有 4 个分区都是镜像的）。
md126p2 看起来像数据分区。
我不太确定 md126p1 - 仅限 8MB......
我四处寻找，找到了固件这里。它包含图像 altos_256_flash_2052。这可能是主板上闪存的内容。所以我将图像写入 USB 磁盘并尝试启动。它正在启动但卡在提示符上：
(none) login:
如果没有证书我就无法继续下去。
有人能帮我识别文件系统类型并将其挂载以检索数据吗？可能我只需要读取最大的（2TB）数据分区。
编辑：添加 blkid 输出（现在来自 CentOS 7）
/dev/sdb1: UUID="75835a1d-dfbd-4673-0890-1856f768949d" TYPE="linux_raid_member"
/dev/sdb2: TYPE="swap"
/dev/sdb3: UUID="34c90eaa-f409-f278-d0ac-5b088a21cdc7" TYPE="linux_raid_member"
/dev/sdc1: UUID="75835a1d-dfbd-4673-0890-1856f768949d" TYPE="linux_raid_member"
/dev/sdc2: TYPE="swap"
/dev/sdc3: UUID="34c90eaa-f409-f278-d0ac-5b088a21cdc7" TYPE="linux_raid_member"
/dev/sdd1: UUID="75835a1d-dfbd-4673-0890-1856f768949d" TYPE="linux_raid_member"
/dev/sdd2: TYPE="swap"
/dev/sdd3: UUID="34c90eaa-f409-f278-d0ac-5b088a21cdc7" TYPE="linux_raid_member"
/dev/sda1: UUID="75835a1d-dfbd-4673-0890-1856f768949d" TYPE="linux_raid_member"
/dev/sda2: TYPE="swap"
/dev/sda3: UUID="34c90eaa-f409-f278-d0ac-5b088a21cdc7" TYPE="linux_raid_member"
/dev/sde1: UUID="dc6f13be-2e3b-4deb-bfb1-a143dbce9de8" TYPE="xfs"
/dev/sde2: UUID="NWRZRS-509E-KNzF-iFL0-WS8r-KIHV-DSdVUa" TYPE="LVM2_member"
/dev/mapper/centos-root: UUID="608eab84-0b37-4b9f-86c8-da75b5e03dba" TYPE="xfs"
/dev/mapper/centos-swap: UUID="5599438f-d0b2-428f-93b1-98349df138c4" TYPE="swap"
/dev/mapper/centos-home: UUID="62d80f29-37a9-4261-89ed-80c4ec75bcc1" TYPE="xfs"
/dev/md126: UUID="39310d11-dce7-4bd4-b47d-056d9db24a5e" TYPE="ext3"
/dev/md127: PTTYPE="dos"
/dev/md126 - 成功安装 - 正如预期的那样，它是一个 3GB 的系统分区。
我仍然无法挂载 /dev/md127...
答案1
查看从系统分区抓取的日志文件 - 似乎使用特殊驱动程序来处理数据分区：
May 3 10:30:07 NAS-SERVER kernel: kfsnbase: module license 'unspecified' taints kernel.
May 3 10:30:07 NAS-SERVER kernel: FSNBASE init_module, got kfsnbase major 252 for char device
May 3 10:30:07 NAS-SERVER kernel: FSNBASE init_module, kfsnbase will use adaptor 'blkscsi'.
May 3 10:30:07 NAS-SERVER kernel: FSNBASE init_module, min_reserved_outcmds is 8192
May 3 10:30:07 NAS-SERVER kernel: FSNBASE init_module, scsi_buf_len is (2097152)
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 ipstor_scsi_done_startup: ipstor_scsi_done_thread running.
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 Special vendor disk detect
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 ====================
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 Special host type type detect
May 3 10:30:07 NAS-SERVER ipstor: Starting IPStor Server (FSNBase) Module succeeded
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 Cisco iSCSI driver
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 iSCSI Initiator over TCP/IP
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 StorwareRAID driver
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 iscsi_tcp
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 iscsi_iser
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 MPT SPI Host
May 3 10:30:07 NAS-SERVER kernel: IOCORE1 ====================
May 3 10:30:09 NAS-SERVER kernel: scsi98 : FalconStor BLOCK-SCSI driver v6.00 Build 6086
May 3 10:30:09 NAS-SERVER kernel: Vendor: FALCON Model: LVMDISK-M09N01 Rev: v1.0
May 3 10:30:09 NAS-SERVER kernel: Type: Direct-Access ANSI SCSI revision: 02
May 3 10:30:09 NAS-SERVER kernel: blk_queue_segment_boundary: set to minimum fff
May 3 10:30:09 NAS-SERVER kernel: SCSI device sdf: 3892334336 512-byte hdwr sectors (1992875 MB)
May 3 10:30:09 NAS-SERVER kernel: sdf: Write Protect is off
May 3 10:30:09 NAS-SERVER kernel: SCSI device sdf: drive cache: write through w/ FUA
May 3 10:30:09 NAS-SERVER kernel: SCSI device sdf: 3892334336 512-byte hdwr sectors (1992875 MB)
May 3 10:30:09 NAS-SERVER kernel: sdf: Write Protect is off
所以我需要启动兼容的内核并加载库模块，也许更多......