[Bug 352766] Re: calling dd with block size 2GB causes casper-rw not to be created

2009-04-27 Thread jruss
The 2 GB limit is irrelevant of file system. dd doesn't know about or care about file systems. So creating another partition with another file system would have no affect on dd. Block size is not the same as volume/partition size. The volume size is the block size times the number of blocks.

[Bug 352766] Re: calling dd with block size 2GB causes casper-rw not to be created

2009-04-27 Thread jruss
Usb-creator is just a script. It is quite easy to just apply the patch from https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/321544 to the text file. If you don't feel comfortable doing that. Then you can manually just find and change 2 lines. It is quite easy. Here are the relevant

[Bug 321544] Re: Persistence Slider Wrong; Takes more than 3 hours to produce largest persistence file

2009-04-27 Thread jruss
I didn't actually apply these patches directly. I updated mine (0.1.15) manually. Read the man page of dd. The size of the file that dd creates is equal to the product of the blocksize and the count. In the 0.1.11 the block size is 1 byte and the count is 'persist' (ie the number of bytes you

[Bug 352766] Re: calling dd with block size 2GB causes casper-rw not to be created

2009-04-27 Thread jruss
Sorry I missed that comment, I responded in that thread: https://bugs.launchpad.net/ubuntu/+source/usb- creator/+bug/321544/comments/11 To repspond to Pi Boy any changes you make to usb-creator will just be overwritten during the update. It will replace the script with the new one in the updated

[Bug 302485] Re: No persistence with USB Creator in Ubuntu 8.10

2009-04-24 Thread jruss
You guys can easily fix your problem by applying the patch in the bug I linked to above: https://bugs.launchpad.net/ubuntu/+source/usb- creator/+bug/321544. If you have the 2 GB (2048 MB) limit it is because usb-creator is telling dd to make a single block that is 2048 MB. However, dd will only

[Bug 302485] Re: No persistence with USB Creator in Ubuntu 8.10

2009-04-24 Thread jruss
Blocksize is not the same as volume/partition/file size (http://en.wikipedia.org/wiki/Block_%28data_storage%29). A file system usually has a block size associated with it. In general terms, when data is pulled off the device it will usually pull off the whole block at the same time. Since related

[Bug 284085] Re: [Intepid] Ubuntu Live USB creator creates liveUSB's that are limited in size

2009-03-31 Thread jruss
This is still a problem. In my case it is definitely an issue with the file size limitations of vfat. I tried to make a persistent usb with jaunty 9.04 beta DVD. Everything went fine and no errors were reported. The usb boots up fine but nothing is persistent across reboots. I went ahead and tried

[Bug 302485] Re: No persistence with USB Creator in Ubuntu 8.10

2009-03-31 Thread jruss
I think the original bug report may be the same problem as https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/284085. If the usb is using FAT32 (aka vfat) then there is a 4 GB file size limitation, that can cause problems when creating a file casper-rw file that is too big. The casper-rw

[Bug 346700] Re: [jaunty alpha 6+ daily] usb-creator creates incorrect free, persistent space; to /cdrom not /

2009-03-31 Thread jruss
This may be because vfat has a file size limitation of 4 GB. That is why it worked on your smaller 4 GB flash drive but failed on your larger drive when you tried to make the 7 GB file. Check the casper folder on your usb drive and see if there is a casper-rw file. If not then that is your

[Bug 321544] Re: Persistence Slider Wrong; Takes more than 3 hours to produce largest persistence file

2009-03-31 Thread jruss
I am using the jaunty 9.04 beta live DVD to create a persistent USB stick. Usb-creator is trying to create a single large block and is failing as a result. Block sizes = 2G aren't allowed by dd. Here is the error in my .usb-creator.log when I tried to create a 3.9 GB file: ['dd', 'if=/dev/zero',

[Bug 346700] Re: [jaunty alpha 6+ daily] usb-creator creates incorrect free, persistent space; to /cdrom not /

2009-03-31 Thread jruss
I have tracked down a more serious problem. The current version of usb- creator in jaunty beta tries to create the casper-rw file as one large block, when actually it should use a reasonable block size like 1k and then create right number of blocks. This is what is causing the dd: invalid number

[Bug 302485] Re: No persistence with USB Creator in Ubuntu 8.10

2009-03-31 Thread jruss
I have tracked down a more serious problem. The current version of usb- creator in jaunty beta tries to create the casper-rw file as one large block, when actually it should use a reasonable block size like 1k and then create right number of blocks. This is what is causing the dd: invalid number

[Bug 284085] Re: [Intepid] Ubuntu Live USB creator creates liveUSB's that are limited in size

2009-03-31 Thread jruss
I have tracked down the root of the problem. Usb-creator in jaunty beta tries to create the casper-rw file as one large block. Notice the count=1 in the dd command. Actually it should use a reasonable block size like 1k and then create right number of blocks. Block sizes = 2GB aren't allowed by

[Bug 352766] [NEW] calling dd with block size 2GB causes casper-rw not to be created

2009-03-31 Thread jruss
Public bug reported: Binary package hint: usb-creator I am using usb-creator 0.1.15 from the jaunty 9.04 beta DVD. I get dd: invalid number errors in .usb-creator.log file. I thought it was a limitation of vfat file system, but I tested it by using dd if=/dev/zeros of=/dev/null and it seems like

[Bug 302485] Re: No persistence with USB Creator in Ubuntu 8.10

2009-03-31 Thread jruss
They will have to stick with FAT because that is what syslinux supports. All modern file sytems including ntfs and ext3 already support files larger than 4 GB. This most recent issue I brought up was the block size which is different than the file size. -- No persistence with USB Creator in

[Bug 292159] Re: MASTER update-initramfs is disabled since running on a live CD but it is running from a flash drive.

2009-01-28 Thread jruss
Adding the link to update-initramfs is working for me. However I would like to update my kernel. As Colin said update-initramfs should update the real kernel that is located in /cdrom. I was wondering how to go about doing this manually until things are fixed. I tried copying vmlinuz and

[Bug 204623] Re: evolution-data-server-2.22 high cpu utilization

2008-04-09 Thread jruss
*** This bug is a duplicate of bug 151536 *** https://bugs.launchpad.net/bugs/151536 evolution-data-server is eating up all of my spare CPU cycles and it is making my mythtv unable to playback smoothly. Please fix this or post a work around. -- evolution-data-server-2.22 high cpu