yaffs2 would be faster than ext2? On Jul 31, 2012 3:21 AM, "Δημήτρης Ζέρβας" <01ttouch@xxxxxxxxx> wrote: > hm... I curently use ext2 and I have installation in a partition of my sd > card. wich fs would be better than ext2, given that I need quich r/w but as > less writes as possible? > On Jul 31, 2012 3:18 AM, "Leonardo Dagnino" <leodag.sch@xxxxxxxxx> wrote: > >> Well, I don't think it will "destroy" the flash... As it is made of NAND >> flash, I suppose that it reacts pretty much like an SSD. Anyway, it should >> take a considerable time until it wears out, and if you use it only to >> install an OS, it won't have any writes, what means that it shouldn't wear >> out for some years (or at least I hope so) >> For what I remember, btrfs uses a pretty big amount of space, what means >> more writes. >> >> Leonardo Dagnino >> >> Obs.: NAND flash only has a limited amount of erases/writes, not reads. >> >> >> 2012/7/30 Zhengyu Xu <xzy3186@xxxxxxxxx> >> >> > I've no idea on how btrfs performs with a flash disk actually. My btrfs >> > partition just locates on a normal hdd so I have never thought about it >> :-) >> > >> > Regards, >> > Zhengyu Xu >> > >> > On 2012-7-31, at 8:27, Δημήτρης Ζέρβας<01ttouch@xxxxxxxxx> wrote: >> > >> > > is it actually safe to format an usb flash to btrfs? won't it destroy >> the >> > > flash because of the read/writes? >> > > On Jul 31, 2012 2:20 AM, "Zhengyu Xu" <xzy3186@xxxxxxxxx> wrote: >> > > >> > >> On Mon, 2012-07-30 at 17:36 -0400, Kyle wrote: >> > >>> Trying to install Arch on a USB key, I am having trouble getting a >> > >> bootable system. I created a basic BTRFS filesystem and mounted it >> with >> > SSD >> > >> optimizations and compression. I didn't create any subvolumes or >> > anything >> > >> else that is said to be problematic when booting to a BTRFS >> filesystem. >> > >> From that point, I followed the installation guide for a normal >> install. >> > >> However, after reading the documentation for GRUB and Syslinux, my >> newly >> > >> created install doesn't boot. I looked at the wiki entry for >> installing >> > to >> > >> a USB key, but it is still written for AIF and grub-legacy. However, >> the >> > >> main difference I can find doesn't seem to apply, because although it >> > >> mentions that the USB key where grub-legacy is installed is always >> > hd0,0, >> > >> grub2 is supposed to look for the UUID of the disk, which matches >> > correctly >> > >> in /boot/grub/grub.cfg. I also tried setting up this install to boot >> > using >> > >> Syslinux, but both bootloaders just drop me into some kind of shell >> and >> > >> refuse to boot. Unfortunately, since I am >> > >>> visually impaired and use speech to install and use Arch, I am >> unable >> > to >> > >> see whether I am in a "normal shell" or a rescue shell, or even what >> > kind >> > >> of issue the bootloaders are having that keeps them from finding a >> > kernel. >> > >> Should I be using a different filesystem other than BTRFS, even >> though >> > both >> > >> bootloaders are said to support it? Should I not be using compression >> > on my >> > >> filesystem? Could this be a problem that is entirely unrelated to the >> > >> filesystem I'm using? Any help is greatly appreciated. >> > >>> ~Kyle >> > >> >> > >> Did you add usb and btrfs to the hooks array in your mkinitcpio.conf? >> > >> >> > >> Regards, >> > >> Zhengyu Xu >> > >> >> > >> >> > >> >> > >> >
