search for: fat32

Displaying 20 results from an estimated 562 matches for "fat32".

2016 Feb 24
2
[PATCH 1/5] fat: fix minfatsize for large FAT32
When trying to installing Syslinux on a FAT32 drive formatted using Ridgecrop's Large FAT32 formatting tool [1], the installer will bail due to the minfatsize check, as there is an extra sector being used. This fix addresses that. [1] http://www.ridgecrop.demon.co.uk/index.htm?fat32format.htm -------------- next part ------...
2016 Feb 25
0
[PATCH 1/5] fat: fix minfatsize for large FAT32
> Hi Ady, > > On 2016.02.25 02:08, Ady via Syslinux wrote: > > There is an "extra" sector, in comparison to... what exactly? > > Sorry if I wasn't clear. I think I implied that the Large FAT32 fat size > had an extra sector compared to minfatsize, when of course I meant the > opposite (the Large FAT32 has one less sector than the minfatsize > computed by the unpatched code, hence the check fails). The additional > sector I was talking about is from the (unpatched) minfats...
2018 Jan 03
1
Structure of VBR in FAT32?
..., it would mean > that you only have "binary" packages of SYSLINUX and/or EXTLINUX (and > the bootloader has not been yet installed). Bingo. I downloaded the actual upstream official archives, as you suggested, looked under bios/core, it all is there. > FWIW, the VBR in FAT32 doesn't have to be 512 bytes; FAT32 has the > possibility to use more than one sector for boot purposes. In fact, > Microsoft's FAT32 VBR uses at least 3 sectors (IIRC, typically, 32 > sectors) I did not know that. I just finished writing a go-lang library implementation of fat32...
2016 Feb 25
3
[PATCH 1/5] fat: fix minfatsize for large FAT32
Hi Ady, On 2016.02.25 02:08, Ady via Syslinux wrote: > There is an "extra" sector, in comparison to... what exactly? Sorry if I wasn't clear. I think I implied that the Large FAT32 fat size had an extra sector compared to minfatsize, when of course I meant the opposite (the Large FAT32 has one less sector than the minfatsize computed by the unpatched code, hence the check fails). The additional sector I was talking about is from the (unpatched) minfatsize variable comput...
2006 Jun 02
3
Running Instant Rails from USB key
...to customers, trying out ideas, and generally all the other benefits that come from having a completely portable environment. However, the 168Mb of files that make up my Instant Rails (with extra gems) is consuming 750Mb of space on my USB key. The reason is simple enough; the USB is formatted as FAT32, and having lots of small files stored on a FAT32 partition is a great way to burn your disc space quickly. Unfortunately, I don''t seem to be able to reformat the USB key as anything other than FAT or FAT32, and I''m not sure I''d want to because FAT/FAT32 is really th...
2014 Jan 19
1
Cluster Size discrepancy between FAT32 and NTFS
Hi, I am not an engineer or linux expert but I have been using syslinux to boot live disk filesets (extracted from iso's) residing on fat32 and NTFS volumes. In FAT32 there has been no problem going with larger cluster sizes up to the nominal maximum of 64K however, with NTFS it has not been possible to exceed the cluster size of 4096. With NTFS formatted using clusters of 8192 or larger, upon boot apparently the syslinux bootsector...
2002 Apr 14
1
deleted fat32, added linux, formated ext3 ... mount detects as fat and I get FS-panic
Hi... I decided to delete my fat32 partition (sda1, with win2k on it). I did that with fdisk and added a linux partition, then formated it with "mkfs -t ext3 /dev/sda1" ... Everything seemed to work fine... I can even mount it with "mount -t ext3 /dev/sda1 /mnt" ... but there seem to be some f...
2016 Feb 26
0
[PATCH 1/5] fat: fix minfatsize for large FAT32
...s the entries in the root-directory > Ds is the size of a entry (=32 bytes) > (...) > ----------------------------------------------------------------------- > > Now, even though this is a FAT16 computation, I think I was able to work > out how Tom Thornhill of Ridgecrop got his FAT32 equivalent, which was > probably as follows: > > ----------------------------------------------------------------------- > Assume: > To is the total amount of sectors, > Fo is the amount of free sectors for data > Fs is the size of one FAT in sectors > Cs is the cluster si...
2016 Feb 26
0
[PATCH 1/5] fat: fix minfatsize for large FAT32
...s code, we should at least test the values that are around or close to the limits between FAT12/16/32. For simplicity, I'll give basic examples (which I have not truly analyzed; developers could / should test relevant code). Example A: Volume_Total_Sectors: 66'463 FAT type: FAT32 Bytes_per_sector: 512 Sectors_per_Cluster: 1 Sectors_per_FAT: 511 ---> this value should _not_ be accepted as valid minfatsize; 512 should be OK. Example B: Volume_Total_Sectors: 4'187'104 FAT type: FAT32 Bytes_per_sector: 512 Sectors_per_Cluster: 64 Sectors_per_FAT: 511 ---> this v...
2010 May 31
4
Moving wine's C: drive to another file system
I have a question regarding moving Wine's C:/ drive to another file system. My hard drive is currently partitioned into 3 primaries. I have a NTFS partition that Windows is on, a Ext4 with Ubuntu, and a third, larger, FAT32 partition that I use to hold cross-OS data (music, pictures, documents ect). I have had infinite difficulty getting wine to run apps that I installed (through wine) to my FAT32 partition. Every time I try to run an app, it throws an error "The program <appname> has encountered a serious...
2018 Jan 04
3
Structure of VBR in FAT32?
> You might want to read Wikipedia's articles about "FAT32" and "Design of the FAT file system", Good pointer. I spent far far too long on that page figuring out how fat32 is designed. But the reserved sectors, there is the key. > reserved sectors Right! Immediately after the FSIS before the FAT.And it usually is 32 sectors for fat32....
2005 Aug 29
4
Can't mount FAT32 partition
I am trying to mount a FAT32 partition in CentOS. I'm following the instructions on this page: http://www.linuxforum.com/linux_tutorials/14/1.php This is the line I put into /etc/fstab /dev/hda /mnt/windows vfat users,owner,rw,umask=000 0 0 And thi...
2018 Jan 05
0
Structure of VBR in FAT32?
...t; rest of ldlinux.sys, checks integrity then continues. > So... VBR (i.e. first 512 bytes of ldlinux.bin) contains code that knows to > find and load first sector of ldlinux.sys. That in turn knows how to find > the rest of ldlinux.sys, and loads that. ldlinux.sys itself understands > fat32 well enough to find the rest of its modules, syslinux.cfg, etc. Yep. >> Actually, only the first sector of ldlinux.sys, computed after >> ldlinux.sys is copied and patched into the VBR by the installer. The >> block map is in ldlinux.sys. >> >> >> At least one...
2018 Jan 03
2
Structure of VBR in FAT32?
...f, loads the > rest of ldlinux.sys, checks integrity then continues. > So... VBR (i.e. first 512 bytes of ldlinux.bin) contains code that knows to find and load first sector of ldlinux.sys. That in turn knows how to find the rest of ldlinux.sys, and loads that. ldlinux.sys itself understands fat32 well enough to find the rest of its modules, syslinux.cfg, etc. > Actually, only the first sector of ldlinux.sys, computed after > ldlinux.sys is copied and patched into the VBR by the installer. The > block map is in ldlinux.sys. > > >> At least one record stating N sectors...
2018 Jan 01
2
Structure of VBR in FAT32?
Hi Syslinuxers, I am trying to understand the basic load chain in fat32 and ext4. I dug into the assembly for MBR, which is pretty straightforward: 1. Find boot partition (or use the pre-defined one at byte 440 for altmbr.bin) 2. Load the first 512-byte sector of the partition (VBR for fat32, Block Group 0 padding for ext). 3. Execute that code The code that is loade...
2016 Feb 25
0
[PATCH 1/5] fat: fix minfatsize for large FAT32
> When trying to installing Syslinux on a FAT32 drive formatted using > Ridgecrop's Large FAT32 formatting tool [1], the installer will bail due > to the minfatsize check, as there is an extra sector being used. This > fix addresses that. > > [1] http://www.ridgecrop.demon.co.uk/index.htm?fat32format.htm >...
2002 Jan 29
2
syslinux and PQMAGIC incompatibility
Hi, "Mircea Popescu" <nufarul.alb at go.ro> schrieb am 29.01.02: > I have this problem: > I've partitioned my hard drive with PQMagic 7 in the following way: > hda1 - fat32 > hda2 - ext2 > hda3 - fat16 > hda4 - extended > hda5 - Linux Swap > hda6 - fat32 > hda7 - ext2 > hda8 - fat32 > > I've put syslinux on hda3, but it fails to boot. Did syslinux even start? What did it tell you? Is any of these partitions...
2018 Jan 06
2
Structure of VBR in FAT32?
...> structures work and how they've changed over time. > That was what I was afraid of... > extlinux lets the Linux kernel do all of the heavy lifting of > installing the file then finding its blocks then performs the same > modifications as syslinux does on FAT12/FAT16/FAT32. extlinux has > less knowledge about ext2/ext3/ext4 and FAT12/FAT16/FAT32 file systems > (basically 0 outside the FAT32 VBR format) than syslinux does about > FAT12/FAT16/FAT32. > "kernel do all of the heavy lifting", i.e. it doesn't actually try...
2018 Jan 06
0
Structure of VBR in FAT32?
...ght only install a certain version. Without the history, you might fail other versions. >> extlinux lets the Linux kernel do all of the heavy lifting of >> installing the file then finding its blocks then performs the same >> modifications as syslinux does on FAT12/FAT16/FAT32. extlinux has >> less knowledge about ext2/ext3/ext4 and FAT12/FAT16/FAT32 file systems >> (basically 0 outside the FAT32 VBR format) than syslinux does about >> FAT12/FAT16/FAT32. > "kernel do all of the heavy lifting", i.e. it doesn't a...
2015 Jul 24
3
Trying to boot a SSD of 500GB
Hi, I have a custom linux system that runs off a FAT32 usb flash disk. I use syslinux to make it bootable and load the kernel. I'm trying to boot now from a SSD SATA disk (500GB) but it's not working and I can't figure out why. BIOS show that no bootable disk were found. What I already tried (linux fdisk): 1- Creating a new DOS partitio...