RE: Running on usb flash
Did I make a mistake on the below fstab as slug no longer boots From: brianpl...@hotmail.com To: debian-arm@lists.debian.org Subject: RE: Running on usb flash Date: Sat, 1 Sep 2012 21:56:39 +0100 Thanks I've added # /etc/fstab: static file system information. # # file system mount point type options dump pass proc/proc procdefaults0 0 /dev/sda2 / ext3errors=remount-ro,noatime 0 1 /dev/sda1 /boot ext2defaults,noatime0 2 /dev/sda6 /home ext3defaults,noatime0 2 /dev/sda5 noneswapsw 0 0 to fstab, is it worth minimzing or disabling swap? I've just bought some decent fast kingston drives, like you say it's not worth the risk using cheap drives. Date: Sat, 1 Sep 2012 22:03:20 +0200 Subject: Re: Running on usb flash From: bjohv...@gmail.com To: brianpl...@hotmail.com CC: debian-arm@lists.debian.org I've run several devices from usb flash for years and have always followed the advice of Martin Michlmayr to use -noatime. Through the years I've had a few crashes, but they have consistently been on cheap usb devices. My advice is to use noatime and sandisk memory, other measures give little in return. /B (Skickat från min mobiltelefon, därför kanske något kortfattat.) On Sep 1, 2012 9:55 PM, Brian Platt brianpl...@hotmail.com wrote: I'm running lenny on my nslu2 on a usb flash stick and found a few guides on how to reduce wear and tear on it but not sure which ones are upto date/relevant. Could someone have a look at these and let me know what ones I should be doing is seems ott to do them all. http://www.cyrius.com/debian/nslu2/linux-on-flash.html http://wiki.pcprobleemloos.nl/my_debian_linux_on_the_nslu2_installation_and_configuration_guide/#preventing_flash_writes_reduce_wear_on_flash_memory http://www.rawsontetley.org/ref_slug.html
Think i've killed my usb flash partitions
Debian was running fine on my nslu2 until I added noatime to my fstab and rebooted and now it doesn't boot. when I inserted the usb flash into another linux machine I get Sep 2 17:21:07 homebox kernel: [ 2676.694615] sde: unknown partition table and fdisk shows Disk /dev/sde: 15.7 GB, 15724707840 bytes 64 heads, 32 sectors/track, 14996 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk identifier: 0xd2231a30 Device Boot Start End Blocks Id System Command (m for help): I also tried mount /dev/sde /mnt/usbstick mount: you must specify the filesystem type So where have my partitions gone? I REALLY need to get a single file off the / partition.
RE: Running on usb flash
Could be a file system check. Leave it alone over night and see what happens. I can't see anything wrong with your fstab. If it's not fsck, you may need a serial console. B Sent from my nexus 7 On Sep 2, 2012 4:57 PM, Brian Platt brianpl...@hotmail.com wrote: Did I make a mistake on the below fstab as slug no longer boots -- From: brianpl...@hotmail.com To: debian-arm@lists.debian.org Subject: RE: Running on usb flash Date: Sat, 1 Sep 2012 21:56:39 +0100 Thanks I've added # /etc/fstab: static file system information. # # file system mount point type options dump pass proc/proc procdefaults0 0 /dev/sda2 / ext3errors=remount-ro,noatime 0 1 /dev/sda1 /boot ext2defaults,noatime0 2 /dev/sda6 /home ext3defaults,noatime0 2 /dev/sda5 noneswapsw 0 0 to fstab, is it worth minimzing or disabling swap? I've just bought some decent fast kingston drives, like you say it's not worth the risk using cheap drives. -- Date: Sat, 1 Sep 2012 22:03:20 +0200 Subject: Re: Running on usb flash From: bjohv...@gmail.com To: brianpl...@hotmail.com CC: debian-arm@lists.debian.org I've run several devices from usb flash for years and have always followed the advice of Martin Michlmayr to use -noatime. Through the years I've had a few crashes, but they have consistently been on cheap usb devices. My advice is to use noatime and sandisk memory, other measures give little in return. /B (Skickat från min mobiltelefon, därför kanske något kortfattat.) On Sep 1, 2012 9:55 PM, Brian Platt brianpl...@hotmail.com wrote: I'm running lenny on my nslu2 on a usb flash stick and found a few guides on how to reduce wear and tear on it but not sure which ones are upto date/relevant. Could someone have a look at these and let me know what ones I should be doing is seems ott to do them all. http://www.cyrius.com/debian/nslu2/linux-on-flash.html http://wiki.pcprobleemloos.nl/my_debian_linux_on_the_nslu2_installation_and_configuration_guide/#preventing_flash_writes_reduce_wear_on_flash_memory http://www.rawsontetley.org/ref_slug.html
