Re: Need suggestions on a backup issue
On Fri, Jul 20, 2012 at 09:50:53AM -0600, Paul E Condon wrote: [cut] What test can I code in Bash to determine that there is no disk mounted at this mount point? I'm thinking of testing for the presence of the file lost+found, but is there something better? Two points. 1. See if man mountpoint is suitable 2. Don't re-invent the wheel. There are plenty of people who've solved the backup to a USB disk before you. Some of their work is in debian. signature.asc Description: Digital signature
Re: Need suggestions on a backup issue
On Fri, 20 Jul 2012 09:50:53 -0600, Paul E Condon wrote: (...) What test can I code in Bash to determine that there is no disk mounted at this mount point? I'm thinking of testing for the presence of the file lost+found, but is there something better? Check if any of these tips help: http://stackoverflow.com/questions/9422461/check-if-directory-mounted-with-bash Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/juc03v$10r$1...@dough.gmane.org
Re: Need suggestions on a backup issue
On Fri, Jul 20, 2012 at 09:50:53AM -0600, Paul E Condon wrote: Debian already provides an email facility that allows cron scripts to email me with error messages. I need a way to test in Bash whether, or not, there actually is a disk mounted at /media/wdp8. What test can I code in Bash to determine that there is no disk mounted at this mount point? I'm thinking of testing for the presence of the file lost+found, but is there something better? Rather than looking for lost+found (which could be any disk), I'd look for an identification file that you put on that disk. For instance, /media/wdp8/.backupdrive1 I guess you could also grep /etc/mtab for /media/wdp8, but I'm not sure if that's 100% reliable. -Rob -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120720162714.gb11...@aurora.owens.net
Re: Need suggestions on a backup issue
On Fri, 2012-07-20 at 09:50 -0600, Paul E Condon wrote: I need a way to test in Bash whether, or not, there actually is a disk mounted at /media/wdp8. A bit hacky, but what I do in my backup scripts is... if mount | grep -q /media/wdp8 then ... fi -- Tixy -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1342807475.2952.5.ca...@computer2.home
Re: Need suggestions on a backup issue
On Fri, Jul 20, 2012 at 07:04:35PM +0100, Tixy wrote: On Fri, 2012-07-20 at 09:50 -0600, Paul E Condon wrote: I need a way to test in Bash whether, or not, there actually is a disk mounted at /media/wdp8. A bit hacky, but what I do in my backup scripts is... if mount | grep -q /media/wdp8 then ... fi One other suggestion: If you mount a backup drive on /media/wdp8/, have your backup program start writing to /media/wdp8/backup/, a dir that exists on the drive but not on your underlying filesystem. If the directory doesn't exist, it ought to exit with an appropriate error rather than filling your root filesystem. -dsr- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120720182959.gw8...@randomstring.org
Re: Need suggestions on a backup issue SOLVED: mountpoint
On 20120720_122714, Rob Owens wrote: On Fri, Jul 20, 2012 at 09:50:53AM -0600, Paul E Condon wrote: Debian already provides an email facility that allows cron scripts to email me with error messages. I need a way to test in Bash whether, or not, there actually is a disk mounted at /media/wdp8. What test can I code in Bash to determine that there is no disk mounted at this mount point? I'm thinking of testing for the presence of the file lost+found, but is there something better? Rather than looking for lost+found (which could be any disk), I'd look for an identification file that you put on that disk. For instance, /media/wdp8/.backupdrive1 I guess you could also grep /etc/mtab for /media/wdp8, but I'm not sure if that's 100% reliable. -Rob The main message is in the Subject: Your suggestion of .backupdrive1 solves the problem of identity of the disk which I agree is important and which I had already solved in a way that I didn't mention: wdp8 is the LABEL of the partition to be mounted. Giving the partition a LABEL allows some magic in Gnome, or in the system but invoked by Gnome, to mount the disk automatically. I like this, but after about a year of operation, once, about 5d ago, the disk was plugged in but not mounted. -- Paul E Condon pecon...@mesanetworks.net -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120720185428.gb2...@big.lan.gnu
Re: Need suggestions on a backup issue
Paul E. Condon [2012-07-20 09:50:53 -0600] wrote: I need a way to test in Bash whether, or not, there actually is a disk mounted at /media/wdp8. #!/bin/sh if mountpoint -q /media/wdp8; then echo Mounted else echo Not mounted fi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/87k3xyurpl@mithlond.arda
