On Fri, 26 Sep 2008 18:21:06 +0000 (UTC), James wrote: > > Bear in mind the limited write lifetime of flash memory. Don't > > put /var or /tmp on such a card if you can avoid it. > > Well, I'm not sure any other alternatives are attractive? Unless > I find a way to mount those partitions off of a usb stick, or > some other idea? > > Since they are not frequently updated and have minimal installed > software (iptables on firewalls and DNS on DNS servers) accompanied by > the fact that most devices have internal wear leveling; it should take > many years to reach the write cycle limits?
What about /var/log? The various logfiles are written very frequently. Could you NFS mount this from somewhere else? I wouldn't rely on wear levelling in a CF card, only on an SSDdrive. > > http://linitx.com/viewproduct.php?prodid=10448 > > very cool! exactly what I could not find. I used one of their adaptors to run a MythTV frontend from CF, although it netboots now. I used a variation on a live CD setup, so the card was not written to. > > You could dd the card to a file and use the same file every time you > > need a new card. > > Um I do not mean to be a pain, but could you provide a little bit > of pseudo-syntax? Assume I have shutdown a 4 GB CF firewall card > and moved it to a reader/writer on another machine. First I need > to format the raw (new) 4GB CF card from a reader. > > /media/sdb1 shows up, but when I run 'fdisk /media/sdb1' I get: > > last_lba(): I don't know how to handle files with mode 40755 > You will not be able to write the partition table. /media/sdb1 is the mount point, not the device node. Use dd if=/dev/sdb of=CF.img bs=4096 to read the card, switch of and if to write a new one. Of course, all the cards have to be the same size. > In the past I have formated the CF cards on the new machine being built, > but I need help figuring out how to do this, from a CF reader/writer > on another machine (thus avoiding a traditional install) ? You don't need to format at all if you dd the whole drive, as that includes the partition table, MBR and the kitchen sink. -- Neil Bothwick Rude alert, rude alert! A fire has knocked out my voice recognition unicycle. Many wurlitzers are missing from my database. Abandon shop, abandon shop! This is not a daffodil, repeat, this is not a daffodil!
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