From 3b3f43748f55b1c17ad55beb9a6eb6be49a68c77 Mon Sep 17 00:00:00 2001 From: Karel Zak Date: Mon, 11 Jun 2018 11:14:56 +0200 Subject: zramctl: (man) explain that --find is necessary Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1589148 Signed-off-by: Karel Zak --- sys-utils/zramctl.8 | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'sys-utils/zramctl.8') diff --git a/sys-utils/zramctl.8 b/sys-utils/zramctl.8 index ccfb8901d..c6ecdc3d5 100644 --- a/sys-utils/zramctl.8 +++ b/sys-utils/zramctl.8 @@ -42,13 +42,18 @@ is used to quickly set up zram device parameters, to reset zram devices, and to query the status of used zram devices. .PP If no option is given, all non-zero size zram devices are shown. +.PP +Note that \fIzramdev\fP node specified on command line has to already exist. The command +.B zramctl +creates a new /dev/zram nodes only when \fB\-\-find\fR option specified. It's possible +(and common) that after system boot /dev/zram nodes are not created yet. .SH OPTIONS .TP .BR \-a , " \-\-algorithm lzo" | lz4 | lz4hc | deflate | 842 Set the compression algorithm to be used for compressing data in the zram device. .TP .BR \-f , " \-\-find" -Find the first unused zram device. If a \fB--size\fR argument is present, then +Find the first unused zram device. If a \fB\-\-size\fR argument is present, then initialize the device. .TP .BR \-n , " \-\-noheadings" -- cgit v1.2.3-55-g7522