search for: blkgetsize

In my last post I pasted the last few line of the compile log for syslinux-3.02pre2. Here are the correct lines from my failed attempt to compile syslinux-3.01. Still the same error. make[1]: Leaving directory `/usr/src/syslinux-3.01/unix' make[1]: Entering directory `/usr/src/syslinux-3.01/extlinux' gcc -Wp,-MT,extlinux.o,-MMD,.extlinux.o.d -W -Wall -Wno-sign-compare

...odev/harddrv.cc Wed Jun 26 09:42:51 2002 @@ -2779,6 +2779,20 @@ if (ret) { BX_PANIC(("fstat() returns error!")); } + if (S_ISBLK(stat_buf.st_mode)) + { +/* it's a block device. st_size will be 0, so set it to the correct size. */ + if (ioctl(fd_table[i],BLKGETSIZE,&(stat_buf.st_size))==-1) + BX_PANIC(("size of block device %s can't be read",pathname)); + if (stat_buf.st_size > (0x7ffffff/512)) + { + BX_ERROR(("size of disk image is too big, rounded down")); + stat_buf.st_size=0x7ffffe00; /* maximum...

...if ( sysopen(OUTPUT, $file, O_RDWR, 0666) ) { $is_open = 1; - - if ( (@filestat = stat(OUTPUT)) && S_ISREG($filestat[2]) ) { - $len = $filestat[7] >> 9; - } elsif ( $is_linux && S_ISBLK($filestat[2]) ) { - $blksize = pack("L!", 0); - if ( ioctl(OUTPUT, $BLKGETSIZE, $blksize) == 0 ) { - $len = unpack("L!", $blksize); # In 512-byte sectors! - } - } + $len = sysseek(OUTPUT, 0, SEEK_END) >> 9; + sysseek(OUTPUT, 0, SEEK_SET); } if ( !$len ) {

utils/mkdiskimage.in: With option -s: Avoid zeroizing the partition even if truncate() failed. --- utils/mkdiskimage_patched_01.in 2014-01-30 20:43:02.000000000 +0100 +++ utils/mkdiskimage.in 2014-01-30 20:45:09.000000000 +0100 @@ -217,8 +217,11 @@ print OUTPUT "\x55\xaa"; $totalsize = $c*$h*$s; $tracks = $c*$h; -# If -s is given, try to simply use truncate... -unless

...LKROGET' redefined /usr/include/sys/mount.h:77: warning: this is the location of the previous definition /usr/include/linux/fs.h:147: warning: `BLKRRPART' redefined /usr/include/sys/mount.h:78: warning: this is the location of the previous definition /usr/include/linux/fs.h:148: warning: `BLKGETSIZE' redefined /usr/include/sys/mount.h:79: warning: this is the location of the previous definition /usr/include/linux/fs.h:149: warning: `BLKFLSBUF' redefined /usr/include/sys/mount.h:80: warning: this is the location of the previous definition /usr/include/linux/fs.h:150: warning: `BLKRASE...

On 07/11/2014 12:33 AM, Thomas Schmitt wrote: > Technical side note: > It turned out that the lseek(2) function of NetBSD does not work > with SEEK_END as expected from the manual. libburn had to resort > to a binary search with try-and-error to determine device sizes. > I did not check perl's sysseek() whether it suffers from the > lseek(2) shortcomming, but i would expect

--- utils/mkdiskimage.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/utils/mkdiskimage.in b/utils/mkdiskimage.in index 533193a..a95a077 100644 --- a/utils/mkdiskimage.in +++ b/utils/mkdiskimage.in @@ -218,7 +218,7 @@ $totalsize = $c*$h*$s; $tracks = $c*$h; # If -s is given, try to simply use truncate... -unless ($opt{'s'} && truncate(OUTPUT,

...= 171 read(4, "", 4096) = 0 stat64(0x400307aa, 0xbffff43c) = 0 stat64(0xbffffa58, 0xbffff43c) = 0 close(4) = 0 munmap(0x40017000, 4096) = 0 open("/dev/sdb2", O_RDONLY|0x8000) = 4 ioctl(4, BLKGETSIZE, 0xbffff63c) = 0 close(4) = 0 brk(0x8053000) = 0x8053000 open("/dev/sdb2", O_RDWR|0x8000) = 4 time(NULL) = 1002263713 mmap2(NULL, 532480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,...

...if ( sysopen(OUTPUT, $file, O_RDWR, 0666) ) { $is_open = 1; - - if ( (@filestat = stat(OUTPUT)) && S_ISREG($filestat[2]) ) { - $len = $filestat[7] >> 9; - } elsif ( $is_linux && S_ISBLK($filestat[2]) ) { - $blksize = pack("L!", 0); - if ( ioctl(OUTPUT, $BLKGETSIZE, $blksize) == 0 ) { - $len = unpack("L!", $blksize); # In 512-byte sectors! - } - } + $len = sysseek(OUTPUT, 0, SEEK_END) >> 9; + sysseek(OUTPUT, 0, SEEK_SET); } if ( !$len ) { @@ -133,6 +130,7 @@ if ( $c == 0 && $file ne '' ) { } $c = $l...

Hello, Happy New Year! These patches make syslinux/linux support ext2/3/4, and it doesn't require the root privilege, I'd like to add a separate e2fs/syslinux, if that is more appropriate, it should be easy to do that. I put these patches on github so that you can easily get them in case you'd like to test them. (The repo's name is sys_tmp, which avoids confusing others, I will

I am trying to write a script to handle setup of domains using virtual block devices for their root FS and have been unable to get the virtual devices to work with any sort of consistency. This is using xen-1.1.bk on Redhat 7.3 (I had to rebuild all the tool binaries to run on 7.3). Anyway, I would first like to make sure I am using the vd/vbd stuff correctly. Here is an example of the problem I

...for additional space for backups, I was under the impression that sda, sdb, sdc, and sdd were the four disks on the raid controller card, but after unplugging the usb drive when running hdparm I am getting this: [root at daisy dev]# hdparm -tT /dev/sdb /dev/sdb: read() hit EOF - device too small ?BLKGETSIZE failed: Inappropriate ioctl for device BLKFLSBUF failed: Inappropriate ioctl for device [root at daisy dev]# ------------------------------------------------------ the 3ware controller shows all four disks still online with a status of ok: [root at daisy dev]# tw_cli /c8 show Unit? UnitType? St...

This patch series copies the core of the tapdisk process from blktap2, with updates coming from blktap2.5. Signed-off-by: Thanos Makatos <thanos.makatos@citrix.com>

>> Hello Everyone, >> >> Since rebooting my Centos 6.10 Openvz server "daisy" yesterday, I am >> getting horrible system performance.? /var/log/messages is full of >> HDIO_GET_IDENTITY failed for /dev/sdb.? The latest entries look like >> this: >> >> Apr 22 08:51:32 daisy kernel: [141224.655699] CT: 1005: stopped >> Apr 22 08:55:04

This patch series introduces the VHD library. It is based on the blktap2 one, with changes coming from the blktap2.5 one. Signed-off-by: Thanos Makatos <thanos.makatos@citrix.com>