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Ubuntu on the server moved to the READ-Only File System state. How to fix without reboot?

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On the Linux Ubuntusrv 2.6.32-45-Server , today at one fine moment the system began to behave very strange – moved to read-only File System mode. I thought that Bad blocks on the disk and gave the sudo fsc -af

fsck from util-linux-ng 2.17.2
E2FSCK 1.41.11 (14-Mar-2010)
/ Dev / Mapper / Ubuntusrv-root: recovering journal
Clearing OrphanD inode 5117251 (UID = 1001, GID = 1001, MODE = 040755, SIZE = 4096)
...
Clearing OrphanD inode 5116637 (UID = 1001, GID = 1001, MODE = 0100644, SIZE = 860291)
Clearing OrphanD inode 3024748 (UID = 0, GID = 0, MODE = 0100644, Size = 769)
Clearing OrphanD inode 5642465 (UID = 0, GID = 0, MODE = 060000, SIZE = 0)
Pass 1: Checking Inodes, Blocks, and Sizes
PASS 2: Checking Directory Structure
Pass 3: Checking Directory Connectivity
PASS 4: Checking Reference Counts
Pass 5: Checking Group Summary Information
/ Dev / Mapper / Ubuntusrv-root: ***** File System Was Modified *****
/ Dev / Mapper / Ubuntusrv-root: ***** reboot linux *****
/ Dev / Mapper / Ubuntusrv-root: 637500/6356992 Files (0.2% non-Contiguous), 7048072/25397248 Blocks

Restart the system can not be because Uptime . The essence of the problem is that with any attempt to change the FS, the message read-only File System is issued, for example:

# Touch Test
Touch: CANNOT Touch `Test ': Read-Only File System

Answer 1, Authority 100%

$ Mount -o Remount, RW / DEV / MAPPER / UBUNTUSRV-ROOT

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