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<arossDOTme>
I thought a prev sdcard was formatted with ext4 with disable journalling and my NN could read it. Reforted a new sd card as ext4, no journal. NN won't mount it and e2fsck on the nano note complains about the super block. What do I need to do differently?
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<wpwrak>
arossDOTme: a general check: is ext4 in /proc/filesystems (on your ben)
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<pabs3>
wpwrak: Mali is only semi-open due to reverse engineering: http://limadriver.org/
<arossDOTme>
oh and /proc/filesystems didn't exist
<wpwrak>
pabs3: what enabled lima to do successful reverse-engineering while that didn't happen with, say, powervr ? developer interest/skills ? corporate non-hostility ? luck ?
<whitequark>
wpwrak: my guess is that lima is a pretty straightforward arch
<wpwrak>
arossDOTme: odd. hmm .. all my bens that are in a runnable state run jlime, so in can't check if openwrt really doesn't have /proc/filesystems. is /proc mounted at all ?
<whitequark>
the company behind mali was even bought by arm, and they do tend to have affection for cores of very good quality
<whitequark>
and afaik powervr was designed by monkeys high on lsd
<pabs3>
anyway, mali/etc is a bit offtopic here :)
<whitequark>
or something close to that
<wpwrak>
well, it's always good to know how gfx support is coming along, considering it's still such a pain
<whitequark>
folks on #lima are quite responsive
<arossDOTme>
/proc/filesystems exists with my 2GB ext2 card.
<arossDOTme>
but not with the reformated ext4 32GB one
<arossDOTme>
wpwrak:^
<wpwrak>
arossDOTme: hmm. so your root file system is on SD, not in NAND ? i.e., you're running quite different systems, depending on the card
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<arossDOTme>
no no. Just things like music on the sd card
<arossDOTme>
wpwrak: hmm. perhaps its my stupid brain. umount 2GB card and inserted 32gb. /proc/filesystems still exists.
<wpwrak>
good :)
<wpwrak>
and ext4 is listed in /proc/filesystems ?
<wpwrak>
(cat /proc/filesystems)
<wpwrak>
(it's just a list of the file system drivers available in your kernel)
<arossDOTme>
on the NN: e2fsck says: superblock invaid. trying backups. back magic number in super block while trying to open ...blar blar balr
<arossDOTme>
no ext4 in /proc/filesystems does have the sd card (mmcb1k0p1)
<arossDOTme>
remmber reading about /proc/filesystems but I forgets...
<arossDOTme>
and mount just fails: invalid argument
<arossDOTme>
oh and it mounts fine on my Trisquel pc install
<wpwrak>
maybe ext4 is simply not enabled on the system running on your ben. you're using openwrt ?
<arossDOTme>
yep
<wpwrak>
xiangfu tends to show up around this time. he'll know what is in there and what isn't. (and there's probably a package that would add whatever is missing ;-)
<arossDOTme>
But what I don't get is I thought I had used ext4 in the past no problems. maybe it's my fooled brain. Planing to try new NN img vir a bootable sd card. I guess I see what happens then?...
<arossDOTme>
hmm also need to got to bed
<arossDOTme>
opgk install kmod-fs-ext4?
<wpwrak>
that module sounds useful, yes
<wpwrak>
not sure what you need to do to get e2fsck with ext4
<arossDOTme>
dependency fail
<wpwrak>
always fun :)
<arossDOTme>
...:kennel
<arossDOTme>
just line on puppy (gnu?/linux)
<arossDOTme>
line = like
<arossDOTme>
e2fsck supports ext4
<arossDOTme>
on ubuntu that is
<wpwrak>
yeah, but the one on your ben apparently doesn't
<arossDOTme>
:|
<arossDOTme>
would a file system in a file do for a test?
<wpwrak>
now we have to wait for someone to show up who knows how this can be remedied. could of course be that ext4 is just disabled in e2fsck on openwrt.
<wpwrak>
to test what ?
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<wpwrak>
hah, speak of the devil ;-)
<arossDOTme>
so a file sonsiting of ext4 fs on working ext2 2gb sdcard and e2fsck the ext4 fs file.
<wpwrak>
xiangfu: arossDOTme is trying to use an ext4 file system on his ben. he ran into two problems: 1) no ext4 in the kernel (and kmod-fs-ext4 has some dependency issue). 2) e2fsck doesn't seem to support ext4.
<arossDOTme>
xiangfu: could you please look in the logs :) thanks
<arossDOTme>
that was quick
<wpwrak>
xiangfu: things he hasn't told us yet: 1) which version of openwrt exactly he is running; 2) what exactly the dependency issue was (i.e., a complaint from opkg, from insmod, ...)
<arossDOTme>
I have kenal
<arossDOTme>
version num looks the same though
<arossDOTme>
:/
<wpwrak>
arossDOTme: (fs in file) naw, i think for now we can assume your sd card is healthy.
<wpwrak>
maybe put the dependency error message in a pastebin
<arossDOTme>
hag on
<wpwrak>
wife interrupt ? (-:C
<arossDOTme>
nope just getting to over load of things to do. 3 things in my mem and thats it.
<arossDOTme>
its also 2:27am
<arossDOTme>
no wife. only age 17, 18 in dec
<xiangfu>
arossDOTme, we have ext4 in latest kernel.
<arossDOTme>
Image_2012-04-09
<xiangfu>
as wpwrak said. which version of openwrt (check by cat /etc/VERSION),
<xiangfu>
arossDOTme, what is the 'dmesg' output when you plug-in the memcard.
<arossDOTme>
now I cant mount the flippng 2gb card.
<arossDOTme>
dmsg comming up
<arossDOTme>
rebooted now I can mount the 2gb card again.
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<arossDOTme>
btw I see "libpng: read error " on shutdown. don't remmber getting this a few weeks ago. Could it be my os fs is corrupt? can't find doc on fsck /
<wpwrak>
the 2 gb card is also ext4 ?
<wpwrak>
(you can also check this in /proc/mounts. somewhat hard to read, but it has lots of useful information.)
<arossDOTme>
no ext2
<arossDOTme>
that was it I remember reading about /proc/mounts not /proc/partitions
<qi-bot>
wpwrak meant: "the most productive time of the day ;-)"
<arossDOTme>
oh nice bot
<arossDOTme>
qi-bot: Who's a good bot? hay? :)
<arossDOTme>
*pats bot on head
<arossDOTme>
:)
<xiangfu>
arossDOTme, the dmesg shows it not mount 32gb card automatically. you can try run 'mkdir -p /mnt/mmcblk0p1; mount /dev/mmcblk0p1 /mnt/mmcblk0p1'
<arossDOTme>
already tried mounting manual
<arossDOTme>
I get fail: invalid argument
<arossDOTme>
xiangfu:
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<wpwrak>
dmesg ?
<arossDOTme>
nothing
<wpwrak>
hmm
<arossDOTme>
could you post replys and I will have a look at the logs after sleep. please thanks btw when are you 2 online?
<arossDOTme>
xiangfu: ^
<wpwrak>
in my case, highly variable :)
<arossDOTme>
arr
<arossDOTme>
any thing before i fall a sleep?
<wpwrak>
maybe the solution will come to you in your dreams :)
<xiangfu>
arossDOTme, no clue. I guess you can try ext4 on your 2GB cards. when you get up. :)
<arossDOTme>
so the file system in a file test then...
<arossDOTme>
don't have to reformat my sd card then he he he
<arossDOTme>
so how to file system check nand?
<arossDOTme>
then again might well reformat sd card anyway
<arossDOTme>
bye bye
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