I have:
1 internal HDD
3x USB HDD
One of the USB HDDs which is sdb1 gets unaccessable after a while. While the others still work.
Here some commands I tried:
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mount -o remount /dev/sdb1
Remounting is not supported at present. You have to umount volume and then mount it once again.
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umount /dev/sdb1
umount: /mnt/hdd1: target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
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mount /dev/sdb1 /mnt/hdd1
Mount is denied because the NTFS volume is already exclusively opened.
The volume may be already mounted, or another software may use it which
could be identified for example by the help of the 'fuser' command.
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fdisk -l
Disk /dev/sda: 163.9 GB, 163928604672 bytes, 320173056 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x039e039e
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 143362047 71680000 7 HPFS/NTFS/exFAT
/dev/sda2 143362048 153602047 5120000 82 Linux swap / Solaris
/dev/sda3 153602048 154626047 512000 83 Linux
/dev/sda4 154626048 320172031 82772992 5 Extended
/dev/sda5 154628096 237400063 41385984 83 Linux
/dev/sda6 237402112 320172031 41384960 83 Linux
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcecb447b
Device Boot Start End Blocks Id System
/dev/sdb1 2048 1953521663 976759808 7 HPFS/NTFS/exFAT
Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x692686e8
Device Boot Start End Blocks Id System
/dev/sdc1 63 1953520064 976760001 7 HPFS/NTFS/exFAT
Disk /dev/sdd: 320.1 GB, 320072933376 bytes, 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x57df9d46
Device Boot Start End Blocks Id System
/dev/sdd1 * 63 625137344 312568641 7 HPFS/NTFS/exFAT
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blkid
/dev/sda1: UUID="C29C02A69C029557" TYPE="ntfs"
/dev/sda2: UUID="0de7672c-2bc5-4cf7-88f1-3618ad07416b" TYPE="swap"
/dev/sda3: UUID="a8e071a4-1c01-40db-a51a-654295ed5cad" TYPE="ext2"
/dev/sda5: UUID="dd8efd23-938d-4b35-9ae4-b9ce5f3213f3" TYPE="ext4"
/dev/sda6: UUID="d8c48820-66ed-414f-9a73-a4044c597c35" TYPE="ext4"
/dev/sdb1: LABEL="1TB - USB2 - CNMemory" UUID="DEBEAAA8BEAA7923" TYPE="ntfs"
/dev/sdc1: LABEL="1TB - SATA-USB2 - Verbatim" UUID="C4DEBB89DEBB71F2" TYPE="ntfs"
/dev/sdd1: LABEL="320GB - USB2 - MAXTOR" UUID="55D123D9E79ABF54" TYPE="ntfs"
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cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sun Dec 2 09:46:52 2012
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=d8c48820-66ed-414f-9a73-a4044c597c35 / ext4 defaults 1 1
UUID=a8e071a4-1c01-40db-a51a-654295ed5cad /boot ext2 defaults 1 2
UUID=dd8efd23-938d-4b35-9ae4-b9ce5f3213f3 /home ext4 defaults 1 2
UUID=0de7672c-2bc5-4cf7-88f1-3618ad07416b swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
UUID=C29C02A69C029557 /mnt/hdd0 ntfs defaults 0 0
UUID=55D123D9E79ABF54 /mnt/hdd3 ntfs defaults 0 0
UUID=DEBEAAA8BEAA7923 /mnt/hdd1 ntfs defaults 0 0
UUID=C4DEBB89DEBB71F2 /mnt/hdd2 ntfs defaults 0 0
/dev/sr0 /mnt/dvd auto auto,user,rw 0 0
I don't know why it gets not accessible anymore after a while, it will happen when I use the computer actively, or if its just downloading.
Thanks
