We have a small box with external drives attached for backing up configuration sets.
I found out the problem is simply that on reboot or whatever unknown event the drive switches from
How can I circumvent this or configure fstab to try both locations?
/dev/sda1 /stor ext4 defaults,noatime,noexec 0 0
You can see I did quite some debugging:
root@nsa:~# mount /stor mount: special device /dev/sda1 does not exist
As you can see below I did quite some debugging while writing the question.
Jul 16 09:48:48 nsa kernel: [167416.395274] EXT4-fs warning (device sda1): __ext4_read_dirblock:908: error reading directory block (ino 2, block 0)
#df -h before
/dev/sda1 1.4T 185G 1.1T 15% /stor
[ 170.431715] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) [119366.019470] usb 1-1.2: USB disconnect, device number 4 [119366.297601] usb 1-1.2: new high-speed USB device number 6 using dwc_otg [119366.398979] usb 1-1.2: New USB device found, idVendor=1058, idProduct=1021 [119366.399013] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [119366.399029] usb 1-1.2: Product: Ext HDD 1021 [119366.399047] usb 1-1.2: Manufacturer: Western Digital [119366.399063] usb 1-1.2: SerialNumber: 5743415A4132343133343334 [119366.400719] usb-storage 1-1.2:1.0: USB Mass Storage device detected [119366.403826] scsi1 : usb-storage 1-1.2:1.0 [119367.398875] scsi 1:0:0:0: Direct-Access WD Ext HDD 1021 2002 PQ: 0 ANSI: 4 [119367.401608] sd 1:0:0:0: Attached scsi generic sg0 type 0 [119367.402505] sd 1:0:0:0: [sdb] 2930272256 512-byte logical blocks: (1.50 TB/1.36 TiB) [119367.403524] sd 1:0:0:0: [sdb] Test WP failed, assume Write Enabled [119367.404593] sd 1:0:0:0: [sdb] Asking for cache data failed [119367.404623] sd 1:0:0:0: [sdb] Assuming drive cache: write through [119367.407157] sd 1:0:0:0: [sdb] Test WP failed, assume Write Enabled [119367.410142] sd 1:0:0:0: [sdb] Asking for cache data failed [119367.410185] sd 1:0:0:0: [sdb] Assuming drive cache: write through [119374.143786] sdb: sdb1 [119374.146995] sd 1:0:0:0: [sdb] Test WP failed, assume Write Enabled [119374.149166] sd 1:0:0:0: [sdb] Asking for cache data failed [119374.149203] sd 1:0:0:0: [sdb] Assuming drive cache: write through [119374.149231] sd 1:0:0:0: [sdb] Attached SCSI disk [153689.349544] EXT4-fs error (device sda1): ext4_find_entry:1309: inode #2: comm rsync: reading directory lblock 0
Bus 001 Device 006: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
grub-probe --target=drive --device /dev/sdato see what the UUID is and use that for fstab instead ?