Date: Tue, 06 Jan 2009 21:05:25 -0500 From: Steve Bertrand <steve@ibctech.ca> To: "freebsd-questions@freebsd.org Questions -" <freebsd-questions@freebsd.org> Subject: Upgrade a USB-stick contained system Message-ID: <49640DE5.7090308@ibctech.ca>
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Hi everyone, I run numerous systems (mostly networking gear) from 2GB USB thumb sticks. These systems do not have hard disks. To update one of these systems, I'd generally copy the thumb drive filesystem to a hard disk in another PC, upgrade it, and then transfer the necessary data back to the USB drive. I'd like to change this approach. What I'd like to do, is boot the USB drive in another machine that has a hard drive, and mount any necessary directories for the duration of the upgrade into the USB drive (such as /usr/src, /usr/ports etc) from the hard drive. When I'm done, the cruft stays on the physical hard disk, while the upgraded system on the USB drive is physically replaced back into the original system. This is purely a disk-space issue on the USB disk. What I want to know, is *exactly* what _working_ directories/filesystems are required to build a new system... working directories that can be dissolved with no repercussions by using umount. Steve
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