Ich habe journalctl -e ausgeführt und folgende Antwort erhalten:
Feb 13 13:55:08 linux-myvz.site systemd-udevd[5983]: remove old symlink, '/dev/cdrom' no longer belonging to '/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sr0'
Feb 13 13:55:08 linux-myvz.site systemd-udevd[5983]: remove old symlink, '/dev/cdrw' no longer belonging to '/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sr0'
Feb 13 13:55:08 linux-myvz.site systemd-udevd[5983]: remove old symlink, '/dev/dvd' no longer belonging to '/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sr0'
Feb 13 13:55:08 linux-myvz.site systemd-udevd[5983]: remove old symlink, '/dev/dvdrw' no longer belonging to '/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sr0'
Feb 13 13:55:21 linux-myvz.site kernel: SFW2-INext-DROP-DEFLT IN=enp1s0f1 OUT= MAC=f0:76:1c:83:ef:a8:90:67:1c:a3:37:29:08:00 SRC=51.15.59.148 DST=192.168.2.100 LEN=220 TOS=0x00 PREC=0x00 TTL=2
Feb 13 13:55:28 linux-myvz.site kernel: sr 1:0:0:0: [sr0] Unhandled error code
Feb 13 13:55:28 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:28 linux-myvz.site kernel: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Feb 13 13:55:28 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:28 linux-myvz.site kernel: Sense Key : Medium Error [deferred]
Feb 13 13:55:28 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:28 linux-myvz.site kernel: Add. Sense: L-EC uncorrectable error
Feb 13 13:55:28 linux-myvz.site kernel: sr 1:0:0:0: [sr0] CDB:
Feb 13 13:55:28 linux-myvz.site kernel: Read(10): 28 00 00 00 00 20 00 00 02 00
Feb 13 13:55:28 linux-myvz.site kernel: end_request: I/O error, dev sr0, sector 128
Feb 13 13:55:28 linux-myvz.site kernel: Buffer I/O error on device sr0, logical block 16
Feb 13 13:55:34 linux-myvz.site kernel: sr 1:0:0:0: [sr0] Unhandled error code
Feb 13 13:55:34 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:34 linux-myvz.site kernel: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Feb 13 13:55:34 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:34 linux-myvz.site kernel: Sense Key : Medium Error [deferred]
Feb 13 13:55:34 linux-myvz.site kernel: sr 1:0:0:0: [sr0]
Feb 13 13:55:34 linux-myvz.site kernel: Add. Sense: L-EC uncorrectable error
Feb 13 13:55:34 linux-myvz.site kernel: sr 1:0:0:0: [sr0] CDB:
Feb 13 13:55:34 linux-myvz.site kernel: Read(10): 28 00 00 00 00 20 00 00 02 00
Feb 13 13:55:34 linux-myvz.site kernel: end_request: I/O error, dev sr0, sector 128
Feb 13 13:55:34 linux-myvz.site kernel: Buffer I/O error on device sr0, logical block 16
Ich habe anscheinend einen Fehler in sr0 oder?
MfG
Johannes Fangmeyer
Ergänzung (13. Februar 2017 )
Das kam dabei heraus:
linux-myvz:/home/johannes # ls -l /dev
insgesamt 0
crw------- 1 root root 10, 235 13. Feb 12:20 autofs
drwxr-xr-x 2 root root 160 13. Feb 12:20 block
drwxr-xr-x 2 root root 80 13. Feb 12:20 bsg
crw------- 1 root root 10, 234 13. Feb 12:20 btrfs-control
drwxr-xr-x 3 root root 60 13. Feb 12:20 bus
lrwxrwxrwx 1 root root 3 13. Feb 13:55 cdrom -> sr0
lrwxrwxrwx 1 root root 3 13. Feb 13:55 cdrw -> sr0
drwxr-xr-x 2 root root 3900 13. Feb 12:21 char
crw------- 1 root root 5, 1 13. Feb 12:21 console
lrwxrwxrwx 1 root root 11 13. Feb 12:20 core -> /proc/kcore
drwxr-xr-x 2 root root 60 13. Feb 12:20 cpu
crw------- 1 root root 10, 62 13. Feb 12:20 cpu_dma_latency
crw------- 1 root root 10, 203 13. Feb 12:20 cuse
lrwxrwxrwx 1 root root 14 13. Feb 12:20 device-mapper -> mapper/control
drwxr-xr-x 7 root root 140 13. Feb 12:20 disk
drwxr-xr-x 2 root root 80 13. Feb 12:20 dri
lrwxrwxrwx 1 root root 3 13. Feb 13:55 dvd -> sr0
lrwxrwxrwx 1 root root 3 13. Feb 13:55 dvdrw -> sr0
crw-rw---- 1 root video 29, 0 13. Feb 12:20 fb0
lrwxrwxrwx 1 root root 13 13. Feb 12:20 fd -> /proc/self/fd
crw-rw-rw- 1 root root 1, 7 13. Feb 12:20 full
crw-rw-rw- 1 root root 10, 229 13. Feb 12:21 fuse
crw------- 1 root root 251, 0 13. Feb 12:20 hidraw0
crw------- 1 root root 251, 1 13. Feb 12:20 hidraw1
crw------- 1 root root 10, 228 13. Feb 12:20 hpet
drwxr-xr-x 2 root root 0 13. Feb 12:20 hugepages
prw------- 1 root root 0 13. Feb 12:20 initctl
drwxr-xr-x 4 root root 480 13. Feb 12:20 input
crw-r----- 1 root kmem 1, 2 13. Feb 12:20 kmem
crw-r--r-- 1 root root 1, 11 13. Feb 12:20 kmsg
crw-rw----+ 1 root root 10, 232 13. Feb 12:20 kvm
srw-rw-rw- 1 root root 0 13. Feb 12:20 log
crw------- 1 root root 10, 237 13. Feb 12:20 loop-control
crw-rw---- 1 root lp 6, 0 13. Feb 12:20 lp0
crw-rw---- 1 root lp 6, 1 13. Feb 12:20 lp1
crw-rw---- 1 root lp 6, 2 13. Feb 12:20 lp2
crw-rw---- 1 root lp 6, 3 13. Feb 12:20 lp3
drwxr-xr-x 2 root root 60 13. Feb 12:20 mapper
crw------- 1 root root 10, 227 13. Feb 12:20 mcelog
crw------- 1 root root 10, 58 13. Feb 12:20 mei
crw-r----- 1 root kmem 1, 1 13. Feb 12:20 mem
drwxrwxrwt 2 root root 40 13. Feb 12:20 mqueue
drwxr-xr-x 2 root root 60 13. Feb 12:20 net
crw------- 1 root root 10, 61 13. Feb 12:20 network_latency
crw------- 1 root root 10, 60 13. Feb 12:20 network_throughput
crw-rw-rw- 1 root root 1, 3 13. Feb 12:20 null
crw------- 1 root root 10, 144 13. Feb 12:20 nvram
crw-r----- 1 root kmem 1, 4 13. Feb 12:20 port
crw------- 1 root root 108, 0 13. Feb 12:20 ppp
crw------- 1 root root 10, 1 13. Feb 12:20 psaux
crw-rw-rw- 1 root tty 5, 2 13. Feb 14:36 ptmx
drwxr-xr-x 2 root root 0 13. Feb 12:20 pts
crw-rw-rw- 1 root root 1, 8 13. Feb 12:20 random
lrwxrwxrwx 1 root root 4 13. Feb 12:20 resume -> sda2
crw-rw-r--+ 1 root root 10, 59 13. Feb 12:20 rfkill
lrwxrwxrwx 1 root root 4 13. Feb 12:20 rtc -> rtc0
crw------- 1 root root 254, 0 13. Feb 12:20 rtc0
brw-rw---- 1 root disk 8, 0 13. Feb 12:20 sda
brw-rw---- 1 root disk 8, 1 13. Feb 12:20 sda1
brw-rw---- 1 root disk 8, 2 13. Feb 12:20 sda2
brw-rw---- 1 root disk 8, 3 13. Feb 12:20 sda3
brw-rw---- 1 root disk 8, 4 13. Feb 12:20 sda4
crw-rw---- 1 root disk 21, 0 13. Feb 12:20 sg0
crw-rw----+ 1 root cdrom 21, 1 13. Feb 12:20 sg1
drwxrwxrwt 2 root root 160 13. Feb 14:33 shm
crw------- 1 root root 10, 231 13. Feb 12:20 snapshot
drwxr-xr-x 3 root root 280 13. Feb 12:20 snd
brw-rw----+ 1 root cdrom 11, 0 13. Feb 13:55 sr0
lrwxrwxrwx 1 root root 15 13. Feb 12:20 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 13. Feb 12:20 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 13. Feb 12:20 stdout -> /proc/self/fd/1
crw-rw-rw- 1 root tty 5, 0 13. Feb 12:20 tty
crw--w---- 1 root tty 4, 0 13. Feb 12:20 tty0
crw--w---- 1 root tty 4, 1 13. Feb 12:21 tty1
crw--w---- 1 root tty 4, 10 13. Feb 12:20 tty10
crw--w---- 1 root tty 4, 11 13. Feb 12:20 tty11
crw--w---- 1 root tty 4, 12 13. Feb 12:20 tty12
crw--w---- 1 root tty 4, 13 13. Feb 12:20 tty13
crw--w---- 1 root tty 4, 14 13. Feb 12:20 tty14
crw--w---- 1 root tty 4, 15 13. Feb 12:20 tty15
crw--w---- 1 root tty 4, 16 13. Feb 12:20 tty16
crw--w---- 1 root tty 4, 17 13. Feb 12:20 tty17
crw--w---- 1 root tty 4, 18 13. Feb 12:20 tty18
crw--w---- 1 root tty 4, 19 13. Feb 12:20 tty19
crw--w---- 1 root tty 4, 2 13. Feb 12:20 tty2
crw--w---- 1 root tty 4, 20 13. Feb 12:20 tty20
crw--w---- 1 root tty 4, 21 13. Feb 12:20 tty21
crw--w---- 1 root tty 4, 22 13. Feb 12:20 tty22
crw--w---- 1 root tty 4, 23 13. Feb 12:20 tty23
crw--w---- 1 root tty 4, 24 13. Feb 12:20 tty24
crw--w---- 1 root tty 4, 25 13. Feb 12:20 tty25
crw--w---- 1 root tty 4, 26 13. Feb 12:20 tty26
crw--w---- 1 root tty 4, 27 13. Feb 12:20 tty27
crw--w---- 1 root tty 4, 28 13. Feb 12:20 tty28
crw--w---- 1 root tty 4, 29 13. Feb 12:20 tty29
crw--w---- 1 root tty 4, 3 13. Feb 12:20 tty3
crw--w---- 1 root tty 4, 30 13. Feb 12:20 tty30
crw--w---- 1 root tty 4, 31 13. Feb 12:20 tty31
crw--w---- 1 root tty 4, 32 13. Feb 12:20 tty32
crw--w---- 1 root tty 4, 33 13. Feb 12:20 tty33
crw--w---- 1 root tty 4, 34 13. Feb 12:20 tty34
crw--w---- 1 root tty 4, 35 13. Feb 12:20 tty35
crw--w---- 1 root tty 4, 36 13. Feb 12:20 tty36
crw--w---- 1 root tty 4, 37 13. Feb 12:20 tty37
crw--w---- 1 root tty 4, 38 13. Feb 12:20 tty38
crw--w---- 1 root tty 4, 39 13. Feb 12:20 tty39
crw--w---- 1 root tty 4, 4 13. Feb 12:20 tty4
crw--w---- 1 root tty 4, 40 13. Feb 12:20 tty40
crw--w---- 1 root tty 4, 41 13. Feb 12:20 tty41
crw--w---- 1 root tty 4, 42 13. Feb 12:20 tty42
crw--w---- 1 root tty 4, 43 13. Feb 12:20 tty43
crw--w---- 1 root tty 4, 44 13. Feb 12:20 tty44
crw--w---- 1 root tty 4, 45 13. Feb 12:20 tty45
crw--w---- 1 root tty 4, 46 13. Feb 12:20 tty46
crw--w---- 1 root tty 4, 47 13. Feb 12:20 tty47
crw--w---- 1 root tty 4, 48 13. Feb 12:20 tty48
crw--w---- 1 root tty 4, 49 13. Feb 12:20 tty49
crw--w---- 1 root tty 4, 5 13. Feb 12:20 tty5
crw--w---- 1 root tty 4, 50 13. Feb 12:20 tty50
crw--w---- 1 root tty 4, 51 13. Feb 12:20 tty51
crw--w---- 1 root tty 4, 52 13. Feb 12:20 tty52
crw--w---- 1 root tty 4, 53 13. Feb 12:20 tty53
crw--w---- 1 root tty 4, 54 13. Feb 12:20 tty54
crw--w---- 1 root tty 4, 55 13. Feb 12:20 tty55
crw--w---- 1 root tty 4, 56 13. Feb 12:20 tty56
crw--w---- 1 root tty 4, 57 13. Feb 12:20 tty57
crw--w---- 1 root tty 4, 58 13. Feb 12:20 tty58
crw--w---- 1 root tty 4, 59 13. Feb 12:20 tty59
crw--w---- 1 root tty 4, 6 13. Feb 12:20 tty6
crw--w---- 1 root tty 4, 60 13. Feb 12:20 tty60
crw--w---- 1 root tty 4, 61 13. Feb 12:20 tty61
crw--w---- 1 root tty 4, 62 13. Feb 12:20 tty62
crw--w---- 1 root tty 4, 63 13. Feb 12:20 tty63
crw--w---- 1 johannes tty 4, 7 13. Feb 12:20 tty7
crw--w---- 1 root tty 4, 8 13. Feb 12:20 tty8
crw--w---- 1 root tty 4, 9 13. Feb 12:20 tty9
crw-rw---- 1 root dialout 4, 64 13. Feb 12:20 ttyS0
crw-rw---- 1 root dialout 4, 65 13. Feb 12:20 ttyS1
crw-rw---- 1 root dialout 4, 74 13. Feb 12:20 ttyS10
crw-rw---- 1 root dialout 4, 75 13. Feb 12:20 ttyS11
crw-rw---- 1 root dialout 4, 76 13. Feb 12:20 ttyS12
crw-rw---- 1 root dialout 4, 77 13. Feb 12:20 ttyS13
crw-rw---- 1 root dialout 4, 78 13. Feb 12:20 ttyS14
crw-rw---- 1 root dialout 4, 79 13. Feb 12:20 ttyS15
crw-rw---- 1 root dialout 4, 80 13. Feb 12:20 ttyS16
crw-rw---- 1 root dialout 4, 81 13. Feb 12:20 ttyS17
crw-rw---- 1 root dialout 4, 82 13. Feb 12:20 ttyS18
crw-rw---- 1 root dialout 4, 83 13. Feb 12:20 ttyS19
crw-rw---- 1 root dialout 4, 66 13. Feb 12:20 ttyS2
crw-rw---- 1 root dialout 4, 84 13. Feb 12:20 ttyS20
crw-rw---- 1 root dialout 4, 85 13. Feb 12:20 ttyS21
crw-rw---- 1 root dialout 4, 86 13. Feb 12:20 ttyS22
crw-rw---- 1 root dialout 4, 87 13. Feb 12:20 ttyS23
crw-rw---- 1 root dialout 4, 88 13. Feb 12:20 ttyS24
crw-rw---- 1 root dialout 4, 89 13. Feb 12:20 ttyS25
crw-rw---- 1 root dialout 4, 90 13. Feb 12:20 ttyS26
crw-rw---- 1 root dialout 4, 91 13. Feb 12:20 ttyS27
crw-rw---- 1 root dialout 4, 92 13. Feb 12:20 ttyS28
crw-rw---- 1 root dialout 4, 93 13. Feb 12:20 ttyS29
crw-rw---- 1 root dialout 4, 67 13. Feb 12:20 ttyS3
crw-rw---- 1 root dialout 4, 94 13. Feb 12:20 ttyS30
crw-rw---- 1 root dialout 4, 95 13. Feb 12:20 ttyS31
crw-rw---- 1 root dialout 4, 68 13. Feb 12:20 ttyS4
crw-rw---- 1 root dialout 4, 69 13. Feb 12:20 ttyS5
crw-rw---- 1 root dialout 4, 70 13. Feb 12:20 ttyS6
crw-rw---- 1 root dialout 4, 71 13. Feb 12:20 ttyS7
crw-rw---- 1 root dialout 4, 72 13. Feb 12:20 ttyS8
crw-rw---- 1 root dialout 4, 73 13. Feb 12:20 ttyS9
crw------- 1 root root 10, 239 13. Feb 12:20 uhid
crw------- 1 root root 10, 223 13. Feb 12:20 uinput
crw-rw-rw- 1 root root 1, 9 13. Feb 12:20 urandom
drwxr-xr-x 4 root root 80 13. Feb 12:20 v4l
crw-rw---- 1 root tty 7, 0 13. Feb 12:20 vcs
crw-rw---- 1 root tty 7, 1 13. Feb 12:20 vcs1
crw-rw---- 1 root tty 7, 10 13. Feb 12:20 vcs10
crw-rw---- 1 root tty 7, 2 13. Feb 12:21 vcs2
crw-rw---- 1 root tty 7, 3 13. Feb 12:21 vcs3
crw-rw---- 1 root tty 7, 4 13. Feb 12:21 vcs4
crw-rw---- 1 root tty 7, 5 13. Feb 12:21 vcs5
crw-rw---- 1 root tty 7, 6 13. Feb 12:21 vcs6
crw-rw---- 1 root tty 7, 7 13. Feb 12:20 vcs7
crw-rw---- 1 root tty 7, 128 13. Feb 12:20 vcsa
crw-rw---- 1 root tty 7, 129 13. Feb 12:20 vcsa1
crw-rw---- 1 root tty 7, 138 13. Feb 12:20 vcsa10
crw-rw---- 1 root tty 7, 130 13. Feb 12:21 vcsa2
crw-rw---- 1 root tty 7, 131 13. Feb 12:21 vcsa3
crw-rw---- 1 root tty 7, 132 13. Feb 12:21 vcsa4
crw-rw---- 1 root tty 7, 133 13. Feb 12:21 vcsa5
crw-rw---- 1 root tty 7, 134 13. Feb 12:21 vcsa6
crw-rw---- 1 root tty 7, 135 13. Feb 12:20 vcsa7
drwxr-xr-x 2 root root 60 13. Feb 12:20 vfio
crw------- 1 root root 10, 63 13. Feb 12:20 vga_arbiter
crw------- 1 root root 10, 137 13. Feb 12:20 vhci
crw------- 1 root root 10, 238 13. Feb 12:20 vhost-net
crw-rw----+ 1 root video 81, 0 13. Feb 12:20 video0
crw------- 1 root root 10, 130 13. Feb 12:20 watchdog
crw------- 1 root root 253, 0 13. Feb 12:20 watchdog0
crw-rw-rw- 1 root root 1, 5 13. Feb 12:20 zero
MfG Johannes Fangmeyer