ref: 7628681f83b663609eace87a50f8fbf68c31f40b
dir: /sys/man/4/ext4srv/
.TH EXT4SRV 4 .SH NAME ext4srv \- ext4 file system .SH SYNOPSIS .B ext4srv [ .B -Ss ] [ .B -f .I file ] [ .B -g .I groupfile ] [ .B -n .I srvname ] [ .B -r .I (2|3|4) ] [ .B -b .I blksize ] [ .B -I .I inodesize ] [ .B -L .I label ] .SH DESCRIPTION .I Ext4srv is a file server that interprets the Linux Second, Third and Fourth Extended File Systems. A single instance of .I ext4srv can provide access to multiple ext2, ext3 and ext4 partitions simultaneously. .PP .I Ext4srv posts a file descriptor named .I srvname (default .BR ext4 ) in the .B /srv directory. To access an ext4 file system on a device, use .B mount with the .I spec argument (see .IR bind (1)) the name of the file holding the raw ext4 file system, typically the disk or partition. If .I spec is undefined in the .BR mount , .I ext4srv will use .I file as the default name for the device holding the file system. .PP Normally .I ext4srv creates a pipe to act as the communications channel between itself and its clients. The .B -s flag instructs .I ext4srv to use its standard input and output instead. This flag also prevents the creation of an explicit service file in .BR /srv . .PP By default, .I ext4srv will try to parse and use .I /etc/group file for permission checks, if available on the mounted filesystem. The optional .B -g flag specifies Unix-format group file that gives the mapping between the numeric user- and group-ID numbers in the Extended file system and the strings reported by Plan 9 status inquiries. The file is assumed to reside on the filesystem where .I ext4srv executable is running, not the one to be mounted. .PP With .B -S option the filesystem can be mounted in "root" mode, allowing full access, regardless of permissions. .PP With .B -r option the filesystem will be reamed - the old data erased and the file reformatted as specified. An optional label can be specified with .BR -L , block size (default is 4096 bytes) with .B -b and inode size (default is 256 bytes) with .BR -I . .SH SOURCE .B /sys/src/cmd/ext4srv .SH NOTES Symlinks are not resolved. .SH BUGS There may be bugs - no refunds. .SH HISTORY .I Ext4srv first appeared in 9front (February, 2024).