[IDEA] Boot XBian from USB

[pit79]

(18th Nov, 2013 10:57 PM)Wrechid Wrote:  I figured it out... i had the -Lf option backwards... it should be -fL, (i.e. sudo mkfs.btrfs -fL xbian-usb /dev/sda1) "To-may-to, to-mah-to" hehe... also the /mnt/etc/fstab file is different in the beta2, it should look like this afterwards

Code:

#
#
#
/dev/mmcblk0p1        /boot                   xbian   rw                              0       1
/dev/sda1             /home                   xbian   subvol=home/@,noatime           0       0
/dev/sda1             /lib/modules            xbian   subvol=modules/@,noatime        0       0
none            /run/lock                       tmpfs                   noauto                  0       0
none            /run/shm                        tmpfs                   noauto                  0       0
none            /run/user                       tmpfs                   noauto                  0       0
none            /sys/kernel/debug               debugfs                 noauto                  0       0
none            /sys/kernel/security            securityfs              noauto                  0       0

and the /boot/cmdline.txt file should look like this

Code:

sdhci-bcm2708.sync_after_dma=0 dwc_otg.lpm_enable=0 console=tty1 root=/dev/sda1 rootflags=autodefrag,compress=lzo rootfstype=btrfs rootwait smsc95xx.turbo_mode=Y elevator=cfq logo.nologo quiet noswap loglevel=0 mod_scsi.scan=sync partswap startevent=mountall splash nohdparm --startup-event mountall

i'm not for sure if this is the best options for both files, as i'm not pro... but if there are improvements, i'll be glad to try and use them...
since i was using a class 4 sd card, XBian is really cruising on USB now...

Well i'm not sure i did it well but it works. Used Xbian-copier from xbian-config menu and move / directory to /dev/sda1, then i change cmdline.txt to /dev/sda1 and i have:

Filesystem Size Used Avail Use% Mounted on
rootfs 3.2G 441M 2.6G 15% /
udev 256K 4.0K 252K 2% /dev
tmpfs 25M 192K 25M 1% /run
/dev/sda1 3.2G 441M 2.6G 15% /
/dev/mmcblk0p1 34M 14M 21M 40% /boot
/dev/sda1 3.2G 441M 2.6G 15% /home
/dev/sda1 3.2G 441M 2.6G 15% /lib/modules
/dev/sda1 3.2G 441M 2.6G 15% /xbmc-backup

My fstab file :


#
#
/dev/mmcblk0p1 /boot xbian rw 0 1
/dev/root /home xbian subvol=home/@,noatime 0 0
/dev/root /lib/modules xbian subvol=modules/@,noatime 0 0

none /run/lock tmpfs noauto 0 0
none /run/shm tmpfs noauto 0 0
none /run/user tmpfs noauto 0 0
none /sys/kernel/debug debugfs noauto 0 0
none /sys/kernel/security securityfs noauto 0 0

and cmdline.txt

sdhci-bcm2708.sync_after_dma=0 dwc_otg.lpm_enable=0 console=tty1 root=/dev/sda1 rootflags=subvol=root/@,autodefrag,compress=lzo rootfstype=btrfs rootwait smsc95xx.turbo_mode=Y elevator=cfq logo.nologo quiet noswap loglevel=0 mod_scsi.scan=sync partswap startevent=mountall splash nohdparm --startup-event mountall

Still have "subvol=root/@" but like i said its works so im not sure to remove this.

My question is how disable swap on sd card ? I have swap on usb partition and how to move this zram thingy from sd to usb, or create new one on usb ?