Re: SD card flashing time

2010-09-16 Thread James Cameron
On 9/15/2010 4:51 PM, Martin Langhoff wrote: On Wed, Sep 15, 2010 at 10:14 PM, James Cameronqu...@laptop.org wrote: For interest, I've compared the time it takes to fs-update using OpenFirmware versus a Linux kernel and shell mediated installation method. Why not compared to (linux-based)

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 2:15 AM, James Cameron qu...@laptop.org wrote: What is interesting about the filesystem result is that it takes longer despite writing far less data; 1.6 GB out of 4 GB.  And there was no ext3 journal involved during the write. But probably a lot of fs updates. That'd

Re: SD card flashing time

2010-09-16 Thread James Cameron
On Thu, Sep 16, 2010 at 05:42:03PM -0400, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 2:15 AM, James Cameron qu...@laptop.org wrote: What is interesting about the filesystem result is that it takes longer despite writing far less data; 1.6 GB out of 4 GB. ?And there was no ext3 journal

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 7:01 PM, James Cameron qu...@laptop.org wrote: No, certainly not.  There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata.  Why would you want to zero-out blocks anyway? Thinking of a deployment trying

Re: SD card flashing time

2010-09-16 Thread Mitch Bradley
On 9/16/2010 1:28 PM, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 7:01 PM, James Cameronqu...@laptop.org wrote: No, certainly not. There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata. Why would you want to zero-out

Re: SD card flashing time

2010-09-16 Thread James Cameron
On Thu, Sep 16, 2010 at 07:28:39PM -0400, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 7:01 PM, James Cameron qu...@laptop.org wrote: No, certainly not. ?There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata. ?Why would

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 7:53 PM, James Cameron qu...@laptop.org wrote: I agree, this should work.  It seems about the same amount of work as building all images small and resizing them up on first boot. Indeed. The core idea that is interesting is having the firstboot be a special boot that

SD card flashing time

2010-09-15 Thread John Watlington
[thread misdirected to an internal list, mea culpa. listed here in chronological order] On Sep 15, 2010, at 8:17 AM, Esteban Arias wrote: Hi, it is possible reduce the time of flashing xo-1.5? Dextrose version, delays 20 mins. thanks, -- Esteban Arias Investigación y