You can safely ignore/skip the remount read-only step and just proceed -- I've done it many, many times with no problems. I'd just make sure you don't have some app running that is making a lot of writes to the filesystem and you should be ok.
I am trying to set up a gumstix with the breakout-vx and the netCF-vx boards.
The kernel and filesystem weren't changed since the board was bought.
I only did a few reboots and copying of files to /tmp.
I start the gumstix and connect to it through ssh through the ethernet port.
Then, I follow the instructions on the gumstix developer wiki to flash the filesystem:
When I get to: "/media/cf$ mount -o remount,ro /" it gives me the following message:
mount: you must specify the filesystem type
I try different variations, including specifying the filesystem type:
"/media/cf$ mount -t jffs2 -r -o remount rootfs /" OR
"/media/cf$ mount -t rootfs -r -o remount rootfs /"
mount: / is busy
I am not sure why this happens. I couldn't find any mention of a similar problem.
Any help or pointers would be highly appreciated.
Here is some information that might be useful:
/media/cf$ df -h
Filesystem Size Used Available Use% Mounted on
/dev/mtdblock1 14.8M 9.7M 5.0M 66% /
/dev/mtdblock1 14.8M 9.7M 5.0M 66% /dev/.static/dev
tmpfs 2.0M 40.0k 2.0M 2% /dev
tmpfs 30.7M 0 30.7M 0% /dev/shm
tmpfs 30.7M 60.0k 30.7M 0% /var/volatile
tmpfs 30.7M 0 30.7M 0% /media/ram
/dev/hda1 982.1M 734.3M 247.8M 75% /media/cf
:/media/cf$ cat /etc/fstab
# fstab for gumstix-verdex
rootfs / auto defaults,sync,noatime 1 1
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
tmpfs /dev tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs mode=0777 0 0
tmpfs /var/volatile tmpfs mode=0755 0 0
tmpfs /media/ram tmpfs defaults 0 0
# compact flash slot
/dev/hda1 /media/cf auto defaults 0 0
# mmc/microSD slot
/dev/mmcblk0p1 /media/card auto defaults 0 0
# USB Storage
/dev/sda1 /media/hdd auto defaults 0 0
# USB Device File System
usbfs /proc/bus/usb usbfs defaults 0 0
Please tell me if there is anything else that might help.
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