short version: I have a new USB external drive. The script I used on my old disk crashes randomly after the disk mysteriously becomes read-only. Re-mounting solves the problem. I suspect a hardware problem, but can't prove it and I'm sure if I go to BUG with the disk they'll say "It doesn't support Linux. That's your problem"
long version: I bought a new LaCie Minimus 2Tb as a backup drive. My existing backup drive is a WD Elements 1Tb and I have a script that uses rsync to backup all my partitions. The backup script works fine on the old disk. Here's a sample line from the script: rsync -rlvtogS --delete --ignore-errors /data2 $MOUNT/data BTW - all the partitions being backed up are on my box and the USB backup disk is also connected to the same box - Mandriva 2011.0 with all updates installed. The first thing I did was to delete the pre-installed Windows partition and create a ReiserFS partition (same as on the existing disk). On the new disk, the script crashes randomly (usually after writing between 5 to 30 Gb of data) with the following error messages: rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken pipe (32) rsync: mkdir "/media/LaCie/data" failed: Read-only file system (30) rsync error: error in file IO (code 11) at main.c(587) [Receiver=3.0.8] rsync: connection unexpectedly closed (9 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(601) [sender=3.0.8] The backed up data is readable. remount doesn't work [root@shlomo1 solomon]# mount -o remount,rw /media/LaCie mount: /dev/sdc1: can't read superblock umount and then mount DO work [root@shlomo1 solomon]# umount /media/LaCie [root@shlomo1 solomon]# mkdir /media/LaCie [root@shlomo1 solomon]# mount /dev/sdc1 /media/LaCie [root@shlomo1 solomon]# df Filesystem Size Used Avail Use% Mounted on /dev/sda1 97G 9.9G 82G 11% / /dev/sda6 479M 254M 201M 56% /boot /dev/sda7 193G 107G 86G 56% /home /dev/sdb7 117G 86G 32G 74% /data2 /dev/sdb6 440G 429G 12G 98% /data1 /dev/sdb1 178G 83G 86G 50% /data3 /dev/sdb5 196G 125G 71G 64% /public /dev/sdc1 1.9T 136G 1.7T 8% /media/LaCie After that I can re-run the rsync script and it continues to write data until the next crash. Here's part of mtab after re-mounting [root@shlomo1 solomon]# cat /etc/mtab /dev/sdb6 /data1 reiserfs rw 0 0 /dev/sdb1 /data3 ext4 rw,commit=0 0 0 /dev/sdc1 /media/LaCie reiserfs rw 0 0 and after "automatic" mounting - plugging in the USB: /dev/sdb6 /data1 reiserfs rw 0 0 /dev/sdb1 /data3 ext4 rw,commit=0 0 0 /dev/sdc1 /media/LaCie reiserfs rw,nosuid,nodev,uhelper=udisks 0 0 But regardless of whether I mount the disk manually or automatically, the same crash occurs. As I wrote above, I suspect a hardware problem, but on the other hand, if that's the case, why does re-mounting solve the problem? In any case, I don't believe that BUG or LaCie will help me, as soon as they hear I re-formatted the disk as Linux ReiserFS. Any ideas? -- Shlomo Solomon http://the-solomons.net Sent by Claws Mail 3.7.9 - KDE 4.6.5 - LINUX Mandriva 2011.0 _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
