I have to create jffs2 filesystem for ARM.I have already created directories and nodes of devices as well as inittab script for ext2 filesystem. Now I don't know how to proceed from here. How to convert ext2 to jffs2. One more thing, is it necessary to create partition on hard drive on which one filesystem is already present to create one more new filesystem.
View 1 RepliesI am able to create a solaris package and hpux package from directory structure in a specific format rather than spec file but the same i can not do on linux . is there any way to do that . basically i can create the solaris package using command pkgtrans -s "source loc" "package location" all .we do not need any specfile here rather we create the package from the filesystem objects in a proper directory structures. again pkgadd -d option will install the datastream from a package but i did not find the same on linux.
View 1 Replies View RelatedI'm having trouble getting subversion working on Centos 4.7. When I try to create a repository using:
Code:
svnadmin create /path/to/repo
I get:
Code:
svn: Berkeley DB error while creating environment for filesystem repo/db: Invalid argument
svn: bdb: Berkeley DB library configured to support only DB_PRIVATE environments
I've searched the Net, with little luck. Threads seem to suggest that Centos has this flag compiled into the Berkeley DB RPM by default; whereas SVN doesn't want it. Someone, somewhere, must have got this to work and I'm sure it's something really simple I'm doing wrong.
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We are running debian off of an SD card and want to know what's best for /var?
- Plenty of room on 2GB SD card, so do we, make /var as large as possible (everything else is read only) to reduce block overwrites, or do we make /var as small as possible, hopefully reducing the load 'pdflush' places on the 200 Mhz system?
That said, why not ext2? Is there damage that can happen in /var due to insta-crash or power loss that will prevent proper system function? We heard ext4 is more optimized, but ext4 on 2.6.29, not sure.
If we must use a journaled file system for /var, then which is lowest load on system, or "better": jfs, ext3, jffs2 ...
He bought a Kguard DVR and a 2TB WD harddrive (SATA). First I tied formatting it from the DVR itself, but it failed. I then connected it to my computer using an USB2SATA connector, and tried formatting it with gparted. That failed with the message: "No partition table found on device /dev/sdd" When trying to create a msdos or gtp partition table it performs the action without errors, but it doesn't save the changes.
Same thing when using parted. When trying to create a msdos or gtp table (or label) it doesn't complain, but when i try to create a partition or simply use the print command it gives me the error "unrecognized disk label". I allso tried fdisk, but it told me to use parted instead due to the large size of the disk.
What is the recommended filesystem to use when creating a home server/nas?
I'd be sharing files using SAMBA, DLNA Server or some sort of streaming. I'll have two win7 laptops, 2 ubuntu desktops and ps3 accessing the files. Most of the time the server will just 75% read from 25% writing.
Would ext4 be an ideal?
I'm trying to format an external hard disk under Ubuntu 10.04. All starts well, but eventually I get the message:
Error formatting volume
Error creating file system: helper exited with exit code 1:
Error calling fsync(2) on /dev/sdb1: Input/output error
I keep getting a bunch of these warnings and was wondering what they mean and if they are anything that I should be worried about.
Code:
JFFS2 warning: (1038) jffs2_sum_write_data: Summary too big (-32 data, -1305 pad) in eraseblock at 00400000
I am trying to find a way to get/read the C source code from a JFFS2 image file. All I have is the jffs2 file and nothing else. I was looking for some kind of converter or reader that would allow me to do this. I know very little about Linux. I need to give the source code to a developer to save time on a new version/redevelopment of the original application.
View 3 Replies View RelatedI am trying to mount a file image, like this
mount -o loop /tmp/apps.img /media/apps
But I get the following:
mount: you must specify the filesystem type
I try ext3:
mount -o loop /tmp/apps.img /media/apps -t ext3
dmesg says:
error: can't find ext3 filesystem on dev loop6.
I've also tried ext2, vfat etc. How can I detect the filesystem type of apps.img?
I've had a look at some similar threads but as I'm very new to linux they're already a bit technical for me. Sorry, this calls for someone with patience. I gather from other threads that disconnecting an external drive without unmounting is a no-no, and this seems to be the likely cause. Now the disk is read only and I'm unable to change any settings through the usual control panel on ubuntu. I'm just not familiar with the terminal instructions. I tried to cut and past a few command lines from other threads but I got some warnings that proceding could damage data. Like this one: WARNING! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.
View 5 Replies View RelatedI am very new to linux, and I have a question regarding the filesystem check (fsck). The power recently went out and when I tried to restart linux the following error appears:
*/dev/sda1 contains file system w/errors, check forced it then goes on to say..
*An error occured during the file system check. Dropping you to a shell; the system will reboot when you leave the shell. Give root password for maintenance (or type Control-D to continue) I wasn't sure what to do, but checked some other online forums and they suggested running fsck manually - so I typed in the root password - and used the command, "fsck -A -V ; echo == $? ==" it then gave the following message
*WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage
*Would you like to continue (y/n)
Again, I wasn't sure what to do so i just checked no. I then manually turned off the computer and was prompted at the beginning to press Alt-3. I was brought to another screen and it informed me one of the drives was degraded and suggested rebuilding the array. I tried doing this, but it still brings me back to the original error of, "/dev/sda1 contains file system w/errors, check forced," and the process continues.
Also, when I tried to rebuild the array, I didn't backup any of the data on our home directory before doing this (which was probably a big mistake). After being prompted to type the root password, I was able to give the ls command and look at all the directories...the home directory where our data was stored was empty and I am afraid I may have lost some information. Is there a possibility that data was lost when I was trying to rebuild using the old drives?
When I try to boot to OpenSUSE I get the following error during boot-up: unknown filesystem type 'reiserfs' could not mount root filesystem - exiting to /bin/sh$
This only started happening quite recently - before this I could boot to Linux quite happily.
I have a following problem: Recently my drive with Ubuntu 9.4 has mysteriously stopped working, i.e. when I switch the computer on it informs me that GRUB didn't find the filesystem. Well, I suppose it happens.
First, I though it was due to the drive dying, but I popped it in an external enclosure and HDTune told me the drive was fine. Wanting to recover the files on the drive before reinstalling I first tried to mount it in said external enclosure under Windows (I have Win Ext2 driver installed which used to work just fine). This time, however, drive gets assigned a letter but upon opening it Windows popped up an error saying that the drive was not formatted and whether I would like to format it then.
Unfazed by this streak of failures I tried to mount it under Linux but, alas, to no avail. I might have tried every single -t operator under mount command but it still won't budge and let me mount.
I would like to build a SAN with like 4 TB of space on it. What is the best way to accomplish this task?
- What exact hardware would I need.
- What exact software do I need.
- How to bond two Ethernet cards together to get better network performance out of the box
I am looking to find a cheap rack-mount server cabinet. What is the best file system for a SAN? Is there a particular distro that works well with this? I prefer CentOS as that's what I have been learning on.
How to repair filesystem in Red Hat Linux version 5.0
View 1 Replies View RelatedI am using uClinux on ARM processor. How many & which filesytems are supported in uCLinux.I am aware that romfs is by default.
View 4 Replies View RelatedThe root partition on my server seems to be full. I'd like to find out what files are on that partition and only that partition so I can free up some space on it.
Filesystem Size Used Avail Use% Mounted on
/dev/hda5 7.8G 7.8G 0 100% /
/dev/hda8 84G 33G 47G 42% /home
/dev/hda6 996M 43M 902M 5% /tmp
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So how do I find out what I can remove to free up some space?
I am getting a SSD and I'd like it to become my new Linux boot drive. However, it is smaller than my current hard drive's root Linux partition, so I'd like to copy over the filesystem and exclude some directories (which I'll leave on another hard drive). So I can't just clone the partition with parted or similar because it is too big.
I want to make sure all the data, metadata, links and such are preserved. That seems to exclude "cp" because it doesn't preserve all the metadata and link information.
The two basic techniques I've been able to identify seem to be something like:
find / -xdev -print0 | cpio -pa0V /mnt/dst
and:
rsync -avP -H -S --numeric-ids / /mnt/dst
Can anyone chime in with what they've used in the past, whether one of these or a different method, or if they see any flaws in these approaches.
While coding Python, I tend to save files very often (I have a pretty high code->test->code->test->... frequency). I hate when Linux syncs my changes to disk everytime I do a write.
How do I configure Linux so that it keeps file writes in memory for a certain period of time/number of writes?
To make this any useful, of course reads to not-yet-fsynced files must be from memory (so that the Python interpreter always sees the latest contents). Extra credits for background-fsyncing that doesn't block other writes/reads going on at the same time :-)
Once I deleted a log file and recreated it. After I did so the new log file was not being written to. I was told that it is because the file I deleted is still running and being used in memory. What is the memory portion called(such as user space) that the filesystem run in?
View 5 Replies View RelatedI've added a second drive to a system and I need to extend the lvm and the filesystem to the second disk. Is there a way to do this online with centos 5.5? I specifically need extending the actual ext3 filesystem which seems to be the trick part.
View 8 Replies View RelatedI have just purchased a 1 TB external hard disk to be used for backups. The backups will be performed with rsync and since I don't really care about accessing the data from other operating systems, I think I'll use ext3 on the partition. I'll just be backing up my home directory and probably /etc as well. In my home directory, I have a small number of files that are several GB, but most are tens of MB in size or less.
I'm just wondering if there are any special options I should pass when I create the filesystem with mkfs.ext3.
I heard that the ext file system does not causes file fragmentation. Could some one explain how this is achieved. And how come a file does not divides in to fragments as compared to Windows based Filesystems.
View 1 Replies View RelatedI have got arch Linux dual booting with Win XP on my laptop. I have been getting a filesystem check error since yesterday and am unable to start Arch. Upon googling and searching the arch fora, I came upon some advice which I tried which has not worked yet. Hence the new post.Basically, I was attempting to print something off and accidentally chose a printer that was not connected to my laptop. After half a minute or so, it repeatedly started giving me notifications that the printer was not connected...in excess of 200 messages that the printer was not working which continued to pop up despite me canceling the print job. The whole system got really sluggish (for the first time in the last year) and I had to restart the laptop upon which the boot messages appear. It gets to the point where its loading the various filesystems. It mounts root and says it fine.
I tried fsck which tells me that home and boot are still mounted.So I booted up using an Ubuntu Live CD and checked and repaired each file system which it successfully did. Upon rebooting into Arch, I am getting the same message.I have not installed anything new and had upgraded the whole system a few days before the problem started.
Code:
fsck from util-linux-ng 2.17.2
e2fsck 1.41.11 (14-Mar-2010)
/dev/sda1 is mounted.
WARNING!!! The filesystem is mounted. If you continue you ***WILL***
cause ***SEVERE*** filesystem damage.
Do you really want to continue (y/n)?
I don't want to cause damage, but I'd rather not go into BIOS.
I want to know that how to use cdfs filesystem with redhat 5.2 i am unable to play a video cd in my system. this cd have .dat files. where i can download and install cdfs filesystem in my system.
View 2 Replies View RelatedI have been given a headless linux system running from a SD card. I get into it by putty, directly to root, not other user and even /home dir. Whatever I copy or write will dissapear because is ro.
my etc/fstab file is:
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda1 /boot vfatnoauto,rw 0 0
I want to backup a lot of files on an external 2TB USB and sit it in a cupboard for the next 10 years. Looking for the most reliable filesystem for this. I don't care about speed, journalling, UNIX permissions or any of that stuff. All I care about is in 10 years time when the hard disk plates are rusted and unreadable and the drive hardly functions, what filesystem will be the easiest to recover my data from. Not ruling out FAT32 either for its simplicity but maybe there's a better filesystem for the job?
View 12 Replies View RelatedI need to combine 6 different filesystems into one filesystem using rsync. I am so confused as to which parameters I need to use. The 6 fileystems are:
/mnt/tkpkgc1a/vol/mn_pkg_08_02/
/mnt/tkpkgc1a/vol/mn_pkg_08_01/
/mnt/tkpkgc1a/vol/mn_pkg_06_09/
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